./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0b3ea3bfb5fa1a0ecb86372fd7d66f0cc10d9707b974c24e5c8a286e565a46ff --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:49:59,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:49:59,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:49:59,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:49:59,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:49:59,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:49:59,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:49:59,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:49:59,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:49:59,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:49:59,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:49:59,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:49:59,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:49:59,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:49:59,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:49:59,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:49:59,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:49:59,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:49:59,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:49:59,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:49:59,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:49:59,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:49:59,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:49:59,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:49:59,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:49:59,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:49:59,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:49:59,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:49:59,927 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:49:59,928 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:49:59,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:49:59,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:49:59,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:49:59,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:49:59,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:49:59,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:49:59,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:49:59,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:49:59,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:49:59,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:49:59,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:49:59,940 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 18:49:59,987 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:49:59,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:49:59,997 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:49:59,997 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:49:59,998 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:49:59,998 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:49:59,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:50:00,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:50:00,000 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:50:00,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:50:00,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:50:00,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:50:00,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:50:00,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:50:00,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:50:00,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:50:00,003 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:50:00,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:50:00,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:50:00,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:50:00,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:50:00,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:50:00,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:50:00,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:50:00,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:50:00,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:50:00,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:50:00,006 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:50:00,007 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:50:00,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:50:00,007 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:50:00,008 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_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b3ea3bfb5fa1a0ecb86372fd7d66f0cc10d9707b974c24e5c8a286e565a46ff [2021-11-13 18:50:00,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:50:00,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:50:00,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:50:00,388 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:50:00,389 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:50:00,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-13 18:50:00,470 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/data/f46d0e6d7/235103475805406f88bfd77bd900ee09/FLAG7f86021e9 [2021-11-13 18:50:01,589 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:50:01,590 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-13 18:50:01,677 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/data/f46d0e6d7/235103475805406f88bfd77bd900ee09/FLAG7f86021e9 [2021-11-13 18:50:01,844 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/data/f46d0e6d7/235103475805406f88bfd77bd900ee09 [2021-11-13 18:50:01,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:50:01,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:50:01,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:50:01,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:50:01,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:50:01,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:50:01" (1/1) ... [2021-11-13 18:50:01,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c32597e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:50:01, skipping insertion in model container [2021-11-13 18:50:01,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:50:01" (1/1) ... [2021-11-13 18:50:01,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:50:02,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:50:05,445 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335455,335468] [2021-11-13 18:50:05,448 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335600,335613] [2021-11-13 18:50:05,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:50:05,503 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:50:05,895 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335455,335468] [2021-11-13 18:50:05,896 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335600,335613] [2021-11-13 18:50:05,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:50:06,151 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:50:06,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:50:06 WrapperNode [2021-11-13 18:50:06,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:50:06,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:50:06,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:50:06,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:50:06,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:50:06" (1/1) ... [2021-11-13 18:50:06,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:50:06" (1/1) ... [2021-11-13 18:50:06,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:50:06,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:50:06,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:50:06,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:50:06,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:50:06" (1/1) ... [2021-11-13 18:50:06,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:50:06" (1/1) ... [2021-11-13 18:50:06,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:50:06" (1/1) ... [2021-11-13 18:50:06,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:50:06" (1/1) ... [2021-11-13 18:50:06,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:50:06" (1/1) ... [2021-11-13 18:50:06,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:50:06" (1/1) ... [2021-11-13 18:50:06,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:50:06" (1/1) ... [2021-11-13 18:50:06,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:50:06,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:50:06,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:50:06,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:50:06,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:50:06" (1/1) ... [2021-11-13 18:50:06,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:50:06,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:50:06,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:50:06,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:50:06,972 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 18:50:06,973 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 18:50:06,973 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_get_stats [2021-11-13 18:50:06,973 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_get_stats [2021-11-13 18:50:06,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 18:50:06,973 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 18:50:06,974 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-13 18:50:06,974 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-13 18:50:06,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_84 [2021-11-13 18:50:06,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_84 [2021-11-13 18:50:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-13 18:50:07,035 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-13 18:50:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 18:50:07,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 18:50:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_91 [2021-11-13 18:50:07,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_91 [2021-11-13 18:50:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-13 18:50:07,036 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-13 18:50:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-13 18:50:07,036 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-13 18:50:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 18:50:07,036 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 18:50:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-13 18:50:07,036 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-13 18:50:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-13 18:50:07,037 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-13 18:50:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 18:50:07,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 18:50:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 18:50:07,037 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 18:50:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-13 18:50:07,037 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-13 18:50:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 18:50:07,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 18:50:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-13 18:50:07,038 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-13 18:50:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-13 18:50:07,038 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-13 18:50:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:50:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-13 18:50:07,038 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-13 18:50:07,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-13 18:50:07,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-13 18:50:07,039 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_tx_timeout [2021-11-13 18:50:07,039 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_tx_timeout [2021-11-13 18:50:07,039 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 18:50:07,039 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 18:50:07,039 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_read [2021-11-13 18:50:07,039 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_read [2021-11-13 18:50:07,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 18:50:07,040 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_nway_reset [2021-11-13 18:50:07,040 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_nway_reset [2021-11-13 18:50:07,040 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 18:50:07,040 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 18:50:07,040 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_rx_buff_len [2021-11-13 18:50:07,040 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_rx_buff_len [2021-11-13 18:50:07,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 18:50:07,041 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_open [2021-11-13 18:50:07,041 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_open [2021-11-13 18:50:07,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 18:50:07,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 18:50:07,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:50:07,041 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 18:50:07,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 18:50:07,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-13 18:50:07,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-13 18:50:07,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-13 18:50:07,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-13 18:50:07,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-13 18:50:07,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-13 18:50:07,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-13 18:50:07,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-13 18:50:07,043 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-13 18:50:07,043 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-13 18:50:07,043 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-13 18:50:07,043 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-13 18:50:07,043 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_write_phy [2021-11-13 18:50:07,044 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_write_phy [2021-11-13 18:50:07,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:50:07,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-13 18:50:07,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-13 18:50:07,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-13 18:50:07,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-13 18:50:07,044 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_phy [2021-11-13 18:50:07,044 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_phy [2021-11-13 18:50:07,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-13 18:50:07,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-13 18:50:07,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 18:50:07,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 18:50:07,045 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 18:50:07,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 18:50:07,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:50:07,045 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:50:07,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:50:07,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-13 18:50:07,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-13 18:50:07,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-13 18:50:07,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-13 18:50:07,046 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-13 18:50:07,046 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-13 18:50:07,046 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_remove_one [2021-11-13 18:50:07,047 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_remove_one [2021-11-13 18:50:07,047 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-13 18:50:07,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-13 18:50:07,047 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-13 18:50:07,047 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-13 18:50:07,047 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 18:50:07,047 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 18:50:07,047 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_free_skbs [2021-11-13 18:50:07,047 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_free_skbs [2021-11-13 18:50:07,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-13 18:50:07,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-13 18:50:07,048 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-13 18:50:07,048 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-13 18:50:07,048 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-13 18:50:07,048 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-13 18:50:07,048 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-13 18:50:07,048 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-13 18:50:07,049 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-13 18:50:07,049 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-13 18:50:07,049 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-13 18:50:07,049 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-13 18:50:07,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:50:07,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:50:07,049 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_close [2021-11-13 18:50:07,050 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_close [2021-11-13 18:50:07,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 18:50:07,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 18:50:07,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 18:50:07,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 18:50:07,050 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-13 18:50:07,050 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-13 18:50:07,051 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_write [2021-11-13 18:50:07,055 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_write [2021-11-13 18:50:07,056 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_mib [2021-11-13 18:50:07,056 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_mib [2021-11-13 18:50:07,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-13 18:50:07,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-13 18:50:07,056 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_interrupt [2021-11-13 18:50:07,057 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_interrupt [2021-11-13 18:50:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-13 18:50:07,057 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-13 18:50:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_coalesce [2021-11-13 18:50:07,057 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_coalesce [2021-11-13 18:50:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 18:50:07,058 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 18:50:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-13 18:50:07,058 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-13 18:50:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-13 18:50:07,058 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-13 18:50:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-13 18:50:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-13 18:50:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:50:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-13 18:50:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-13 18:50:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-13 18:50:07,060 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-13 18:50:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 18:50:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_89 [2021-11-13 18:50:07,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_89 [2021-11-13 18:50:07,061 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_disable_interrupt [2021-11-13 18:50:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_disable_interrupt [2021-11-13 18:50:07,061 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-13 18:50:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-13 18:50:07,061 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_multicast_list [2021-11-13 18:50:07,062 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_multicast_list [2021-11-13 18:50:07,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 18:50:07,062 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_resume [2021-11-13 18:50:07,062 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_resume [2021-11-13 18:50:07,062 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 18:50:07,062 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 18:50:07,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 18:50:07,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 18:50:07,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-13 18:50:07,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-13 18:50:07,063 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_restart [2021-11-13 18:50:07,064 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_restart [2021-11-13 18:50:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-13 18:50:07,064 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-13 18:50:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-13 18:50:07,064 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-13 18:50:07,065 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 18:50:07,065 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 18:50:07,065 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-13 18:50:07,065 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-13 18:50:07,065 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 18:50:07,066 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 18:50:07,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:50:07,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 18:50:07,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 18:50:07,066 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_stop_chip [2021-11-13 18:50:07,066 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_stop_chip [2021-11-13 18:50:07,068 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-13 18:50:07,068 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-13 18:50:07,069 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_poll [2021-11-13 18:50:07,069 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_poll [2021-11-13 18:50:07,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_amd8111e_priv [2021-11-13 18:50:07,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_amd8111e_priv [2021-11-13 18:50:07,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 18:50:07,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 18:50:07,070 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-13 18:50:07,070 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-13 18:50:07,070 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_get_regs_len [2021-11-13 18:50:07,070 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_get_regs_len [2021-11-13 18:50:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-13 18:50:07,071 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-13 18:50:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:50:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_amd8111e_priv [2021-11-13 18:50:07,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_amd8111e_priv [2021-11-13 18:50:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 18:50:07,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 18:50:08,742 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 18:50:15,995 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-13 18:50:16,204 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:50:16,205 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 18:50:16,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:50:16 BoogieIcfgContainer [2021-11-13 18:50:16,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:50:16,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:50:16,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:50:16,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:50:16,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:50:01" (1/3) ... [2021-11-13 18:50:16,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728d3cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:50:16, skipping insertion in model container [2021-11-13 18:50:16,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:50:06" (2/3) ... [2021-11-13 18:50:16,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728d3cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:50:16, skipping insertion in model container [2021-11-13 18:50:16,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:50:16" (3/3) ... [2021-11-13 18:50:16,223 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-13 18:50:16,229 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:50:16,229 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:50:16,305 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:50:16,314 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:50:16,314 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:50:16,407 INFO L276 IsEmpty]: Start isEmpty. Operand has 1811 states, 1193 states have (on average 1.250628667225482) internal successors, (1492), 1224 states have internal predecessors, (1492), 520 states have call successors, (520), 98 states have call predecessors, (520), 97 states have return successors, (515), 506 states have call predecessors, (515), 515 states have call successors, (515) [2021-11-13 18:50:16,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-13 18:50:16,481 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:50:16,483 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:50:16,483 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:50:16,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:50:16,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1614588111, now seen corresponding path program 1 times [2021-11-13 18:50:16,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:50:16,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063920231] [2021-11-13 18:50:16,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:50:16,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:50:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:50:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:50:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:50:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:50:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:50:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:50:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:50:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:50:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:50:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:50:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:50:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-13 18:50:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-13 18:50:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:17,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:18,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:50:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:18,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:50:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:18,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-13 18:50:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:18,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-13 18:50:18,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:18,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-13 18:50:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:18,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-13 18:50:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:18,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:18,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:50:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:18,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:18,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:18,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-13 18:50:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:18,152 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2021-11-13 18:50:18,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:50:18,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063920231] [2021-11-13 18:50:18,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063920231] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:50:18,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:50:18,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:50:18,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563558236] [2021-11-13 18:50:18,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:50:18,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:50:18,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:50:18,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:50:18,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:50:18,218 INFO L87 Difference]: Start difference. First operand has 1811 states, 1193 states have (on average 1.250628667225482) internal successors, (1492), 1224 states have internal predecessors, (1492), 520 states have call successors, (520), 98 states have call predecessors, (520), 97 states have return successors, (515), 506 states have call predecessors, (515), 515 states have call successors, (515) Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 4 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2021-11-13 18:50:20,297 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:50:22,480 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:50:24,624 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:50:26,787 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:50:41,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:50:41,172 INFO L93 Difference]: Finished difference Result 5447 states and 7724 transitions. [2021-11-13 18:50:41,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 18:50:41,175 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 4 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 225 [2021-11-13 18:50:41,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:50:41,235 INFO L225 Difference]: With dead ends: 5447 [2021-11-13 18:50:41,235 INFO L226 Difference]: Without dead ends: 3594 [2021-11-13 18:50:41,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-11-13 18:50:41,259 INFO L933 BasicCegarLoop]: 2295 mSDtfsCounter, 5758 mSDsluCounter, 2969 mSDsCounter, 0 mSdLazyCounter, 4505 mSolverCounterSat, 5258 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19463.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6017 SdHoareTripleChecker+Valid, 5264 SdHoareTripleChecker+Invalid, 9767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 148.00ms SdHoareTripleChecker+Time, 5258 IncrementalHoareTripleChecker+Valid, 4505 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21940.24ms IncrementalHoareTripleChecker+Time [2021-11-13 18:50:41,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6017 Valid, 5264 Invalid, 9767 Unknown, 0 Unchecked, 148.00ms Time], IncrementalHoareTripleChecker [5258 Valid, 4505 Invalid, 4 Unknown, 0 Unchecked, 21940.24ms Time] [2021-11-13 18:50:41,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3594 states. [2021-11-13 18:50:41,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3594 to 3278. [2021-11-13 18:50:41,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3278 states, 2160 states have (on average 1.2393518518518518) internal successors, (2677), 2221 states have internal predecessors, (2677), 921 states have call successors, (921), 190 states have call predecessors, (921), 196 states have return successors, (936), 904 states have call predecessors, (936), 921 states have call successors, (936) [2021-11-13 18:50:41,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3278 states to 3278 states and 4534 transitions. [2021-11-13 18:50:41,661 INFO L78 Accepts]: Start accepts. Automaton has 3278 states and 4534 transitions. Word has length 225 [2021-11-13 18:50:41,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:50:41,663 INFO L470 AbstractCegarLoop]: Abstraction has 3278 states and 4534 transitions. [2021-11-13 18:50:41,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 4 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2021-11-13 18:50:41,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3278 states and 4534 transitions. [2021-11-13 18:50:41,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-11-13 18:50:41,677 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:50:41,677 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:50:41,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:50:41,678 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:50:41,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:50:41,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1259776299, now seen corresponding path program 1 times [2021-11-13 18:50:41,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:50:41,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361621982] [2021-11-13 18:50:41,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:50:41,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:50:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:41,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:50:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:41,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:41,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:50:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:41,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:41,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:50:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:41,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:50:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:50:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:50:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:50:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:50:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:50:42,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:50:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:50:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:50:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-13 18:50:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:50:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:50:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-13 18:50:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-13 18:50:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:50:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-13 18:50:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-13 18:50:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-13 18:50:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:42,327 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2021-11-13 18:50:42,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:50:42,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361621982] [2021-11-13 18:50:42,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361621982] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:50:42,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:50:42,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:50:42,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834676601] [2021-11-13 18:50:42,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:50:42,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:50:42,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:50:42,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:50:42,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:50:42,333 INFO L87 Difference]: Start difference. First operand 3278 states and 4534 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 4 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2021-11-13 18:50:44,380 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:50:46,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:50:48,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:50:50,895 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:03,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:51:03,526 INFO L93 Difference]: Finished difference Result 8487 states and 11780 transitions. [2021-11-13 18:51:03,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 18:51:03,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 4 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 218 [2021-11-13 18:51:03,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:51:03,584 INFO L225 Difference]: With dead ends: 8487 [2021-11-13 18:51:03,584 INFO L226 Difference]: Without dead ends: 5234 [2021-11-13 18:51:03,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-11-13 18:51:03,606 INFO L933 BasicCegarLoop]: 2879 mSDtfsCounter, 3925 mSDsluCounter, 3366 mSDsCounter, 0 mSdLazyCounter, 4455 mSolverCounterSat, 3593 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18078.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4129 SdHoareTripleChecker+Valid, 6245 SdHoareTripleChecker+Invalid, 8052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 102.68ms SdHoareTripleChecker+Time, 3593 IncrementalHoareTripleChecker+Valid, 4455 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20387.02ms IncrementalHoareTripleChecker+Time [2021-11-13 18:51:03,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4129 Valid, 6245 Invalid, 8052 Unknown, 0 Unchecked, 102.68ms Time], IncrementalHoareTripleChecker [3593 Valid, 4455 Invalid, 4 Unknown, 0 Unchecked, 20387.02ms Time] [2021-11-13 18:51:03,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5234 states. [2021-11-13 18:51:03,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5234 to 4776. [2021-11-13 18:51:03,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4776 states, 3203 states have (on average 1.2457071495472993) internal successors, (3990), 3293 states have internal predecessors, (3990), 1284 states have call successors, (1284), 282 states have call predecessors, (1284), 288 states have return successors, (1299), 1257 states have call predecessors, (1299), 1284 states have call successors, (1299) [2021-11-13 18:51:03,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4776 states to 4776 states and 6573 transitions. [2021-11-13 18:51:03,964 INFO L78 Accepts]: Start accepts. Automaton has 4776 states and 6573 transitions. Word has length 218 [2021-11-13 18:51:03,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:51:03,965 INFO L470 AbstractCegarLoop]: Abstraction has 4776 states and 6573 transitions. [2021-11-13 18:51:03,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 4 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2021-11-13 18:51:03,966 INFO L276 IsEmpty]: Start isEmpty. Operand 4776 states and 6573 transitions. [2021-11-13 18:51:03,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-11-13 18:51:03,981 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:51:03,981 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:51:03,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:51:03,983 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:51:03,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:51:03,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1573112842, now seen corresponding path program 1 times [2021-11-13 18:51:03,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:51:03,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695479080] [2021-11-13 18:51:03,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:51:03,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:51:04,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:51:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:51:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:51:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:51:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:51:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:51:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:51:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:51:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:04,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:51:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:51:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:51:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:51:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:51:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:51:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:51:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:51:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:51:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:51:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-13 18:51:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-13 18:51:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:51:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:51:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-11-13 18:51:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-13 18:51:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-13 18:51:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-13 18:51:04,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-11-13 18:51:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-11-13 18:51:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:04,939 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-11-13 18:51:04,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:51:04,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695479080] [2021-11-13 18:51:04,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695479080] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:51:04,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:51:04,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:51:04,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910946194] [2021-11-13 18:51:04,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:51:04,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:51:04,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:51:04,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:51:04,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:51:04,943 INFO L87 Difference]: Start difference. First operand 4776 states and 6573 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 3 states have internal predecessors, (107), 4 states have call successors, (38), 5 states have call predecessors, (38), 1 states have return successors, (33), 3 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-13 18:51:06,994 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:09,161 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:11,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:13,491 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:24,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:51:24,246 INFO L93 Difference]: Finished difference Result 11644 states and 16085 transitions. [2021-11-13 18:51:24,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 18:51:24,248 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 3 states have internal predecessors, (107), 4 states have call successors, (38), 5 states have call predecessors, (38), 1 states have return successors, (33), 3 states have call predecessors, (33), 4 states have call successors, (33) Word has length 278 [2021-11-13 18:51:24,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:51:24,317 INFO L225 Difference]: With dead ends: 11644 [2021-11-13 18:51:24,317 INFO L226 Difference]: Without dead ends: 6893 [2021-11-13 18:51:24,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-11-13 18:51:24,356 INFO L933 BasicCegarLoop]: 2875 mSDtfsCounter, 3926 mSDsluCounter, 3339 mSDsCounter, 0 mSdLazyCounter, 4473 mSolverCounterSat, 3619 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16634.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4131 SdHoareTripleChecker+Valid, 6214 SdHoareTripleChecker+Invalid, 8096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 64.13ms SdHoareTripleChecker+Time, 3619 IncrementalHoareTripleChecker+Valid, 4473 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18664.75ms IncrementalHoareTripleChecker+Time [2021-11-13 18:51:24,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4131 Valid, 6214 Invalid, 8096 Unknown, 0 Unchecked, 64.13ms Time], IncrementalHoareTripleChecker [3619 Valid, 4473 Invalid, 4 Unknown, 0 Unchecked, 18664.75ms Time] [2021-11-13 18:51:24,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6893 states. [2021-11-13 18:51:24,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6893 to 6293. [2021-11-13 18:51:24,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6293 states, 4256 states have (on average 1.249295112781955) internal successors, (5317), 4375 states have internal predecessors, (5317), 1653 states have call successors, (1653), 377 states have call predecessors, (1653), 383 states have return successors, (1668), 1616 states have call predecessors, (1668), 1653 states have call successors, (1668) [2021-11-13 18:51:24,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 8638 transitions. [2021-11-13 18:51:24,832 INFO L78 Accepts]: Start accepts. Automaton has 6293 states and 8638 transitions. Word has length 278 [2021-11-13 18:51:24,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:51:24,834 INFO L470 AbstractCegarLoop]: Abstraction has 6293 states and 8638 transitions. [2021-11-13 18:51:24,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 3 states have internal predecessors, (107), 4 states have call successors, (38), 5 states have call predecessors, (38), 1 states have return successors, (33), 3 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-13 18:51:24,835 INFO L276 IsEmpty]: Start isEmpty. Operand 6293 states and 8638 transitions. [2021-11-13 18:51:24,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2021-11-13 18:51:24,853 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:51:24,855 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 10, 10, 10, 10, 10, 10, 9, 9, 9, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:51:24,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:51:24,855 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:51:24,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:51:24,904 INFO L85 PathProgramCache]: Analyzing trace with hash 2003043399, now seen corresponding path program 1 times [2021-11-13 18:51:24,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:51:24,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513062753] [2021-11-13 18:51:24,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:51:24,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:51:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:51:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:51:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:51:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:51:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:51:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:51:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:51:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:51:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:51:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:51:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:51:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:51:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:51:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:51:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:51:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:51:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:51:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:51:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:51:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:51:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:51:25,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:51:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:51:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:51:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-13 18:51:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:51:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-13 18:51:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-13 18:51:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:25,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:51:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:51:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-11-13 18:51:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-13 18:51:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-13 18:51:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-11-13 18:51:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:25,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-11-13 18:51:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-11-13 18:51:25,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:25,799 INFO L134 CoverageAnalysis]: Checked inductivity of 831 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2021-11-13 18:51:25,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:51:25,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513062753] [2021-11-13 18:51:25,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513062753] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:51:25,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:51:25,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:51:25,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223306932] [2021-11-13 18:51:25,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:51:25,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:51:25,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:51:25,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:51:25,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:51:25,803 INFO L87 Difference]: Start difference. First operand 6293 states and 8638 transitions. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 3 states have internal predecessors, (138), 4 states have call successors, (44), 5 states have call predecessors, (44), 1 states have return successors, (39), 3 states have call predecessors, (39), 4 states have call successors, (39) [2021-11-13 18:51:27,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:30,002 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:32,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:34,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:45,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:51:45,508 INFO L93 Difference]: Finished difference Result 15478 states and 21329 transitions. [2021-11-13 18:51:45,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 18:51:45,508 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 3 states have internal predecessors, (138), 4 states have call successors, (44), 5 states have call predecessors, (44), 1 states have return successors, (39), 3 states have call predecessors, (39), 4 states have call successors, (39) Word has length 352 [2021-11-13 18:51:45,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:51:45,577 INFO L225 Difference]: With dead ends: 15478 [2021-11-13 18:51:45,577 INFO L226 Difference]: Without dead ends: 9210 [2021-11-13 18:51:45,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-11-13 18:51:45,606 INFO L933 BasicCegarLoop]: 2715 mSDtfsCounter, 4535 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 4554 mSolverCounterSat, 3893 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16940.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4815 SdHoareTripleChecker+Valid, 5475 SdHoareTripleChecker+Invalid, 8451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 59.00ms SdHoareTripleChecker+Time, 3893 IncrementalHoareTripleChecker+Valid, 4554 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19036.45ms IncrementalHoareTripleChecker+Time [2021-11-13 18:51:45,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4815 Valid, 5475 Invalid, 8451 Unknown, 0 Unchecked, 59.00ms Time], IncrementalHoareTripleChecker [3893 Valid, 4554 Invalid, 4 Unknown, 0 Unchecked, 19036.45ms Time] [2021-11-13 18:51:45,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9210 states. [2021-11-13 18:51:46,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9210 to 8406. [2021-11-13 18:51:46,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8406 states, 5675 states have (on average 1.2505726872246696) internal successors, (7097), 5831 states have internal predecessors, (7097), 2211 states have call successors, (2211), 513 states have call predecessors, (2211), 519 states have return successors, (2224), 2163 states have call predecessors, (2224), 2211 states have call successors, (2224) [2021-11-13 18:51:46,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8406 states to 8406 states and 11532 transitions. [2021-11-13 18:51:46,189 INFO L78 Accepts]: Start accepts. Automaton has 8406 states and 11532 transitions. Word has length 352 [2021-11-13 18:51:46,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:51:46,190 INFO L470 AbstractCegarLoop]: Abstraction has 8406 states and 11532 transitions. [2021-11-13 18:51:46,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 3 states have internal predecessors, (138), 4 states have call successors, (44), 5 states have call predecessors, (44), 1 states have return successors, (39), 3 states have call predecessors, (39), 4 states have call successors, (39) [2021-11-13 18:51:46,190 INFO L276 IsEmpty]: Start isEmpty. Operand 8406 states and 11532 transitions. [2021-11-13 18:51:46,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2021-11-13 18:51:46,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:51:46,212 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:51:46,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:51:46,212 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:51:46,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:51:46,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1116734514, now seen corresponding path program 1 times [2021-11-13 18:51:46,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:51:46,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845605373] [2021-11-13 18:51:46,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:51:46,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:51:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:51:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:51:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:51:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:51:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:51:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:51:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:51:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:51:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:51:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:46,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:51:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:51:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:51:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:51:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:51:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:51:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:51:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:51:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:51:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:51:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:51:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:51:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:51:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:51:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:51:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-13 18:51:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:51:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-13 18:51:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:46,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-13 18:51:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:47,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:47,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-11-13 18:51:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:47,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-11-13 18:51:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:47,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-11-13 18:51:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:47,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:47,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:51:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:47,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:51:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:47,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-13 18:51:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:47,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-11-13 18:51:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:47,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-11-13 18:51:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:47,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-13 18:51:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:47,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:47,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-11-13 18:51:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:47,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:47,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2021-11-13 18:51:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:47,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1000 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 953 trivial. 0 not checked. [2021-11-13 18:51:47,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:51:47,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845605373] [2021-11-13 18:51:47,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845605373] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:51:47,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:51:47,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:51:47,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736710178] [2021-11-13 18:51:47,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:51:47,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:51:47,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:51:47,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:51:47,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:51:47,155 INFO L87 Difference]: Start difference. First operand 8406 states and 11532 transitions. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 3 states have internal predecessors, (164), 4 states have call successors, (48), 5 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 4 states have call successors, (43) [2021-11-13 18:51:49,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:51,414 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:53,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:55,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:52:07,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:52:07,366 INFO L93 Difference]: Finished difference Result 19227 states and 26443 transitions. [2021-11-13 18:52:07,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 18:52:07,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 3 states have internal predecessors, (164), 4 states have call successors, (48), 5 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 4 states have call successors, (43) Word has length 393 [2021-11-13 18:52:07,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:52:07,449 INFO L225 Difference]: With dead ends: 19227 [2021-11-13 18:52:07,450 INFO L226 Difference]: Without dead ends: 10846 [2021-11-13 18:52:07,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-11-13 18:52:07,497 INFO L933 BasicCegarLoop]: 3359 mSDtfsCounter, 3392 mSDsluCounter, 3692 mSDsCounter, 0 mSdLazyCounter, 4786 mSolverCounterSat, 3206 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17244.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3597 SdHoareTripleChecker+Valid, 7051 SdHoareTripleChecker+Invalid, 7996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 63.22ms SdHoareTripleChecker+Time, 3206 IncrementalHoareTripleChecker+Valid, 4786 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19475.65ms IncrementalHoareTripleChecker+Time [2021-11-13 18:52:07,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3597 Valid, 7051 Invalid, 7996 Unknown, 0 Unchecked, 63.22ms Time], IncrementalHoareTripleChecker [3206 Valid, 4786 Invalid, 4 Unknown, 0 Unchecked, 19475.65ms Time] [2021-11-13 18:52:07,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10846 states. [2021-11-13 18:52:08,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10846 to 9900. [2021-11-13 18:52:08,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9900 states, 6712 states have (on average 1.2520858164481525) internal successors, (8404), 6897 states have internal predecessors, (8404), 2574 states have call successors, (2574), 607 states have call predecessors, (2574), 613 states have return successors, (2587), 2516 states have call predecessors, (2587), 2574 states have call successors, (2587) [2021-11-13 18:52:08,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9900 states to 9900 states and 13565 transitions. [2021-11-13 18:52:08,155 INFO L78 Accepts]: Start accepts. Automaton has 9900 states and 13565 transitions. Word has length 393 [2021-11-13 18:52:08,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:52:08,160 INFO L470 AbstractCegarLoop]: Abstraction has 9900 states and 13565 transitions. [2021-11-13 18:52:08,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 3 states have internal predecessors, (164), 4 states have call successors, (48), 5 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 4 states have call successors, (43) [2021-11-13 18:52:08,160 INFO L276 IsEmpty]: Start isEmpty. Operand 9900 states and 13565 transitions. [2021-11-13 18:52:08,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2021-11-13 18:52:08,182 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:52:08,183 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:08,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:52:08,183 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:52:08,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:08,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1855053836, now seen corresponding path program 1 times [2021-11-13 18:52:08,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:52:08,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376951291] [2021-11-13 18:52:08,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:08,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:52:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:52:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:52:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:52:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:52:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:52:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:52:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:08,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:52:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:52:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:52:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:52:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:52:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:52:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:52:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:52:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:52:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:52:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:52:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:52:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:52:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:52:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:52:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:52:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:52:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:52:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-13 18:52:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:52:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-13 18:52:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-13 18:52:08,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-11-13 18:52:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-11-13 18:52:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-11-13 18:52:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:52:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:52:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-13 18:52:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-11-13 18:52:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-11-13 18:52:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-13 18:52:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:08,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:09,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-11-13 18:52:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:09,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:09,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2021-11-13 18:52:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:09,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1000 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 953 trivial. 0 not checked. [2021-11-13 18:52:09,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:52:09,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376951291] [2021-11-13 18:52:09,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376951291] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:52:09,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:52:09,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:52:09,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063644045] [2021-11-13 18:52:09,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:52:09,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:52:09,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:52:09,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:52:09,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:52:09,036 INFO L87 Difference]: Start difference. First operand 9900 states and 13565 transitions. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 3 states have internal predecessors, (164), 4 states have call successors, (48), 5 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 4 states have call successors, (43) [2021-11-13 18:52:11,089 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:52:13,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:52:15,404 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:52:17,635 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:52:29,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:52:29,646 INFO L93 Difference]: Finished difference Result 22361 states and 30730 transitions. [2021-11-13 18:52:29,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 18:52:29,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 3 states have internal predecessors, (164), 4 states have call successors, (48), 5 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 4 states have call successors, (43) Word has length 393 [2021-11-13 18:52:29,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:52:29,722 INFO L225 Difference]: With dead ends: 22361 [2021-11-13 18:52:29,722 INFO L226 Difference]: Without dead ends: 12486 [2021-11-13 18:52:29,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-11-13 18:52:29,762 INFO L933 BasicCegarLoop]: 3123 mSDtfsCounter, 4201 mSDsluCounter, 3317 mSDsCounter, 0 mSdLazyCounter, 4664 mSolverCounterSat, 3565 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17467.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4475 SdHoareTripleChecker+Valid, 6440 SdHoareTripleChecker+Invalid, 8233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 62.66ms SdHoareTripleChecker+Time, 3565 IncrementalHoareTripleChecker+Valid, 4664 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19689.70ms IncrementalHoareTripleChecker+Time [2021-11-13 18:52:29,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4475 Valid, 6440 Invalid, 8233 Unknown, 0 Unchecked, 62.66ms Time], IncrementalHoareTripleChecker [3565 Valid, 4664 Invalid, 4 Unknown, 0 Unchecked, 19689.70ms Time] [2021-11-13 18:52:29,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12486 states. [2021-11-13 18:52:30,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12486 to 11398. [2021-11-13 18:52:30,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11398 states, 7755 states have (on average 1.253771760154739) internal successors, (9723), 7969 states have internal predecessors, (9723), 2937 states have call successors, (2937), 699 states have call predecessors, (2937), 705 states have return successors, (2950), 2869 states have call predecessors, (2950), 2937 states have call successors, (2950) [2021-11-13 18:52:30,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11398 states to 11398 states and 15610 transitions. [2021-11-13 18:52:30,704 INFO L78 Accepts]: Start accepts. Automaton has 11398 states and 15610 transitions. Word has length 393 [2021-11-13 18:52:30,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:52:30,705 INFO L470 AbstractCegarLoop]: Abstraction has 11398 states and 15610 transitions. [2021-11-13 18:52:30,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 3 states have internal predecessors, (164), 4 states have call successors, (48), 5 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 4 states have call successors, (43) [2021-11-13 18:52:30,706 INFO L276 IsEmpty]: Start isEmpty. Operand 11398 states and 15610 transitions. [2021-11-13 18:52:30,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-11-13 18:52:30,738 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:52:30,738 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:30,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:52:30,739 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:52:30,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:30,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1887662212, now seen corresponding path program 1 times [2021-11-13 18:52:30,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:52:30,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999865297] [2021-11-13 18:52:30,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:30,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:52:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:52:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:52:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:52:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:52:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:52:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:52:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:52:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:52:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:52:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:52:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:52:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:52:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:52:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:52:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:52:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:52:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:52:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:52:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:52:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:52:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:52:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:52:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:52:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:52:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-13 18:52:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:52:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-13 18:52:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-13 18:52:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-13 18:52:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-13 18:52:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-13 18:52:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-13 18:52:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-13 18:52:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-11-13 18:52:31,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-13 18:52:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:52:31,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:52:31,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-11-13 18:52:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-11-13 18:52:31,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-13 18:52:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2021-11-13 18:52:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:31,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-11-13 18:52:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2021-11-13 18:52:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:31,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 1177 trivial. 0 not checked. [2021-11-13 18:52:31,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:52:31,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999865297] [2021-11-13 18:52:31,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999865297] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:52:31,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:52:31,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:52:31,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262529452] [2021-11-13 18:52:31,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:52:31,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:52:31,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:52:31,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:52:31,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:52:31,768 INFO L87 Difference]: Start difference. First operand 11398 states and 15610 transitions. Second operand has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 3 states have internal predecessors, (176), 4 states have call successors, (51), 5 states have call predecessors, (51), 1 states have return successors, (46), 3 states have call predecessors, (46), 4 states have call successors, (46) [2021-11-13 18:52:33,821 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:52:36,041 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:52:38,229 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:52:40,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:52:52,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:52:52,247 INFO L93 Difference]: Finished difference Result 25491 states and 35009 transitions. [2021-11-13 18:52:52,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 18:52:52,248 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 3 states have internal predecessors, (176), 4 states have call successors, (51), 5 states have call predecessors, (51), 1 states have return successors, (46), 3 states have call predecessors, (46), 4 states have call successors, (46) Word has length 447 [2021-11-13 18:52:52,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:52:52,317 INFO L225 Difference]: With dead ends: 25491 [2021-11-13 18:52:52,318 INFO L226 Difference]: Without dead ends: 14118 [2021-11-13 18:52:52,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-11-13 18:52:52,358 INFO L933 BasicCegarLoop]: 2946 mSDtfsCounter, 3687 mSDsluCounter, 3156 mSDsCounter, 0 mSdLazyCounter, 4683 mSolverCounterSat, 3516 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17247.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3892 SdHoareTripleChecker+Valid, 6102 SdHoareTripleChecker+Invalid, 8203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 62.39ms SdHoareTripleChecker+Time, 3516 IncrementalHoareTripleChecker+Valid, 4683 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19564.87ms IncrementalHoareTripleChecker+Time [2021-11-13 18:52:52,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3892 Valid, 6102 Invalid, 8203 Unknown, 0 Unchecked, 62.39ms Time], IncrementalHoareTripleChecker [3516 Valid, 4683 Invalid, 4 Unknown, 0 Unchecked, 19564.87ms Time] [2021-11-13 18:52:52,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14118 states. [2021-11-13 18:52:53,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14118 to 12888. [2021-11-13 18:52:53,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12888 states, 8790 states have (on average 1.2546075085324233) internal successors, (11028), 9033 states have internal predecessors, (11028), 3300 states have call successors, (3300), 791 states have call predecessors, (3300), 797 states have return successors, (3313), 3222 states have call predecessors, (3313), 3300 states have call successors, (3313) [2021-11-13 18:52:53,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12888 states to 12888 states and 17641 transitions. [2021-11-13 18:52:53,345 INFO L78 Accepts]: Start accepts. Automaton has 12888 states and 17641 transitions. Word has length 447 [2021-11-13 18:52:53,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:52:53,346 INFO L470 AbstractCegarLoop]: Abstraction has 12888 states and 17641 transitions. [2021-11-13 18:52:53,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 3 states have internal predecessors, (176), 4 states have call successors, (51), 5 states have call predecessors, (51), 1 states have return successors, (46), 3 states have call predecessors, (46), 4 states have call successors, (46) [2021-11-13 18:52:53,347 INFO L276 IsEmpty]: Start isEmpty. Operand 12888 states and 17641 transitions. [2021-11-13 18:52:53,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-11-13 18:52:53,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:52:53,380 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:53,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:52:53,380 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:52:53,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:53,381 INFO L85 PathProgramCache]: Analyzing trace with hash 564483266, now seen corresponding path program 1 times [2021-11-13 18:52:53,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:52:53,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403102546] [2021-11-13 18:52:53,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:53,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:52:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:52:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:52:53,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:52:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:52:53,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:52:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:52:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:52:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:52:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:52:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:52:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:53,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:52:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:53,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:52:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:52:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:52:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:52:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:52:54,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:52:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:52:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:52:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:54,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:52:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:52:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:52:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:52:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:52:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-13 18:52:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:52:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-13 18:52:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-13 18:52:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-13 18:52:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-13 18:52:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-13 18:52:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-13 18:52:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-13 18:52:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-11-13 18:52:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-13 18:52:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:52:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:52:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-11-13 18:52:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-11-13 18:52:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-13 18:52:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2021-11-13 18:52:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-11-13 18:52:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2021-11-13 18:52:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:54,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1256 trivial. 0 not checked. [2021-11-13 18:52:54,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:52:54,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403102546] [2021-11-13 18:52:54,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403102546] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:52:54,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:52:54,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:52:54,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038458681] [2021-11-13 18:52:54,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:52:54,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:52:54,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:52:54,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:52:54,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:52:54,495 INFO L87 Difference]: Start difference. First operand 12888 states and 17641 transitions. Second operand has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 3 states have internal predecessors, (148), 3 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-13 18:52:56,550 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:52:58,772 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:53:00,987 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:53:09,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:53:09,711 INFO L93 Difference]: Finished difference Result 27202 states and 37431 transitions. [2021-11-13 18:53:09,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:53:09,712 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 3 states have internal predecessors, (148), 3 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 3 states have call successors, (44) Word has length 447 [2021-11-13 18:53:09,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:53:09,794 INFO L225 Difference]: With dead ends: 27202 [2021-11-13 18:53:09,794 INFO L226 Difference]: Without dead ends: 14339 [2021-11-13 18:53:09,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-13 18:53:09,837 INFO L933 BasicCegarLoop]: 2076 mSDtfsCounter, 2312 mSDsluCounter, 2957 mSDsCounter, 0 mSdLazyCounter, 3330 mSolverCounterSat, 2270 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12597.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 5033 SdHoareTripleChecker+Invalid, 5603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 50.11ms SdHoareTripleChecker+Time, 2270 IncrementalHoareTripleChecker+Valid, 3330 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14312.20ms IncrementalHoareTripleChecker+Time [2021-11-13 18:53:09,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2427 Valid, 5033 Invalid, 5603 Unknown, 0 Unchecked, 50.11ms Time], IncrementalHoareTripleChecker [2270 Valid, 3330 Invalid, 3 Unknown, 0 Unchecked, 14312.20ms Time] [2021-11-13 18:53:09,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14339 states. [2021-11-13 18:53:10,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14339 to 12906. [2021-11-13 18:53:10,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12906 states, 8808 states have (on average 1.2540871934604905) internal successors, (11046), 9051 states have internal predecessors, (11046), 3300 states have call successors, (3300), 791 states have call predecessors, (3300), 797 states have return successors, (3313), 3222 states have call predecessors, (3313), 3300 states have call successors, (3313) [2021-11-13 18:53:10,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12906 states to 12906 states and 17659 transitions. [2021-11-13 18:53:10,880 INFO L78 Accepts]: Start accepts. Automaton has 12906 states and 17659 transitions. Word has length 447 [2021-11-13 18:53:10,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:53:10,883 INFO L470 AbstractCegarLoop]: Abstraction has 12906 states and 17659 transitions. [2021-11-13 18:53:10,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 3 states have internal predecessors, (148), 3 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-13 18:53:10,884 INFO L276 IsEmpty]: Start isEmpty. Operand 12906 states and 17659 transitions. [2021-11-13 18:53:10,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2021-11-13 18:53:10,908 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:53:10,908 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:53:10,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 18:53:10,909 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:53:10,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:53:10,910 INFO L85 PathProgramCache]: Analyzing trace with hash 212479840, now seen corresponding path program 1 times [2021-11-13 18:53:10,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:53:10,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104593965] [2021-11-13 18:53:10,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:10,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:53:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:53:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:53:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:53:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:53:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:53:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:53:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:53:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:53:11,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:53:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:53:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:53:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:53:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:53:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:53:11,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:53:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:53:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:53:11,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:53:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:53:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:53:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:53:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:53:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:53:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:53:11,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-13 18:53:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:53:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-13 18:53:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-13 18:53:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-13 18:53:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-13 18:53:11,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-13 18:53:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-13 18:53:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-13 18:53:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2021-11-13 18:53:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-13 18:53:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-13 18:53:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-13 18:53:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2021-11-13 18:53:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2021-11-13 18:53:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:11,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2021-11-13 18:53:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:12,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:12,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:53:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:12,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:53:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:12,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2021-11-13 18:53:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:12,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2021-11-13 18:53:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:12,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2021-11-13 18:53:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:12,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2021-11-13 18:53:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:12,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:12,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2021-11-13 18:53:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:12,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:12,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2021-11-13 18:53:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:12,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 1227 trivial. 0 not checked. [2021-11-13 18:53:12,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:53:12,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104593965] [2021-11-13 18:53:12,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104593965] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:53:12,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:53:12,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 18:53:12,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837163621] [2021-11-13 18:53:12,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:53:12,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 18:53:12,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:53:12,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:53:12,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:53:12,125 INFO L87 Difference]: Start difference. First operand 12906 states and 17659 transitions. Second operand has 8 states, 8 states have (on average 23.625) internal successors, (189), 4 states have internal predecessors, (189), 4 states have call successors, (55), 5 states have call predecessors, (55), 2 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) [2021-11-13 18:53:14,180 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:53:16,374 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:53:18,563 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:53:20,729 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:53:37,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:53:37,830 INFO L93 Difference]: Finished difference Result 29483 states and 40419 transitions. [2021-11-13 18:53:37,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 18:53:37,830 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.625) internal successors, (189), 4 states have internal predecessors, (189), 4 states have call successors, (55), 5 states have call predecessors, (55), 2 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) Word has length 493 [2021-11-13 18:53:37,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:53:37,911 INFO L225 Difference]: With dead ends: 29483 [2021-11-13 18:53:37,912 INFO L226 Difference]: Without dead ends: 16602 [2021-11-13 18:53:37,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2021-11-13 18:53:37,954 INFO L933 BasicCegarLoop]: 3118 mSDtfsCounter, 4372 mSDsluCounter, 7487 mSDsCounter, 0 mSdLazyCounter, 8603 mSolverCounterSat, 3823 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21551.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4582 SdHoareTripleChecker+Valid, 10605 SdHoareTripleChecker+Invalid, 12430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 110.96ms SdHoareTripleChecker+Time, 3823 IncrementalHoareTripleChecker+Valid, 8603 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24444.71ms IncrementalHoareTripleChecker+Time [2021-11-13 18:53:37,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4582 Valid, 10605 Invalid, 12430 Unknown, 0 Unchecked, 110.96ms Time], IncrementalHoareTripleChecker [3823 Valid, 8603 Invalid, 4 Unknown, 0 Unchecked, 24444.71ms Time] [2021-11-13 18:53:37,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16602 states. [2021-11-13 18:53:38,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16602 to 15107. [2021-11-13 18:53:38,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15107 states, 10287 states have (on average 1.2512880334402645) internal successors, (12872), 10570 states have internal predecessors, (12872), 3865 states have call successors, (3865), 945 states have call predecessors, (3865), 954 states have return successors, (3878), 3777 states have call predecessors, (3878), 3865 states have call successors, (3878) [2021-11-13 18:53:39,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15107 states to 15107 states and 20615 transitions. [2021-11-13 18:53:39,071 INFO L78 Accepts]: Start accepts. Automaton has 15107 states and 20615 transitions. Word has length 493 [2021-11-13 18:53:39,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:53:39,073 INFO L470 AbstractCegarLoop]: Abstraction has 15107 states and 20615 transitions. [2021-11-13 18:53:39,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.625) internal successors, (189), 4 states have internal predecessors, (189), 4 states have call successors, (55), 5 states have call predecessors, (55), 2 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) [2021-11-13 18:53:39,073 INFO L276 IsEmpty]: Start isEmpty. Operand 15107 states and 20615 transitions. [2021-11-13 18:53:39,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2021-11-13 18:53:39,098 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:53:39,099 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:53:39,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 18:53:39,100 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:53:39,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:53:39,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1344240034, now seen corresponding path program 1 times [2021-11-13 18:53:39,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:53:39,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932695659] [2021-11-13 18:53:39,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:39,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:53:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:53:39,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:53:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:53:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:53:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:53:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:53:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:53:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:53:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:53:39,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:53:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:53:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:53:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:53:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:53:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:53:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:53:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:53:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:53:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:53:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:53:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:53:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:53:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:53:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:53:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-13 18:53:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:53:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-13 18:53:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-13 18:53:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-13 18:53:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-13 18:53:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-13 18:53:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-13 18:53:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-13 18:53:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-11-13 18:53:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-13 18:53:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:53:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:53:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-11-13 18:53:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-11-13 18:53:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-13 18:53:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2021-11-13 18:53:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:39,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-13 18:53:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:39,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:40,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2021-11-13 18:53:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:40,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2021-11-13 18:53:40,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:53:40,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932695659] [2021-11-13 18:53:40,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932695659] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:53:40,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903485373] [2021-11-13 18:53:40,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:40,017 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:53:40,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:53:40,019 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:53:40,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 18:53:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:41,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 3333 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:53:41,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:53:43,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2021-11-13 18:53:43,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:53:43,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903485373] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:53:43,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:53:43,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2021-11-13 18:53:43,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936638832] [2021-11-13 18:53:43,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:53:43,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:53:43,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:53:43,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:53:43,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:53:43,293 INFO L87 Difference]: Start difference. First operand 15107 states and 20615 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) [2021-11-13 18:53:44,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:53:44,097 INFO L93 Difference]: Finished difference Result 30189 states and 41277 transitions. [2021-11-13 18:53:44,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:53:44,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) Word has length 455 [2021-11-13 18:53:44,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:53:44,182 INFO L225 Difference]: With dead ends: 30189 [2021-11-13 18:53:44,183 INFO L226 Difference]: Without dead ends: 15107 [2021-11-13 18:53:44,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 581 GetRequests, 575 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:53:44,239 INFO L933 BasicCegarLoop]: 2453 mSDtfsCounter, 2211 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2211 SdHoareTripleChecker+Valid, 2453 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.31ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.56ms IncrementalHoareTripleChecker+Time [2021-11-13 18:53:44,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2211 Valid, 2453 Invalid, 1 Unknown, 0 Unchecked, 7.31ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.56ms Time] [2021-11-13 18:53:44,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15107 states. [2021-11-13 18:53:45,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15107 to 15107. [2021-11-13 18:53:45,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15107 states, 10287 states have (on average 1.2502187226596675) internal successors, (12861), 10570 states have internal predecessors, (12861), 3865 states have call successors, (3865), 945 states have call predecessors, (3865), 954 states have return successors, (3878), 3777 states have call predecessors, (3878), 3865 states have call successors, (3878) [2021-11-13 18:53:45,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15107 states to 15107 states and 20604 transitions. [2021-11-13 18:53:45,267 INFO L78 Accepts]: Start accepts. Automaton has 15107 states and 20604 transitions. Word has length 455 [2021-11-13 18:53:45,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:53:45,268 INFO L470 AbstractCegarLoop]: Abstraction has 15107 states and 20604 transitions. [2021-11-13 18:53:45,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) [2021-11-13 18:53:45,268 INFO L276 IsEmpty]: Start isEmpty. Operand 15107 states and 20604 transitions. [2021-11-13 18:53:45,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2021-11-13 18:53:45,293 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:53:45,294 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:53:45,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:53:45,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-13 18:53:45,508 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:53:45,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:53:45,508 INFO L85 PathProgramCache]: Analyzing trace with hash 957340814, now seen corresponding path program 1 times [2021-11-13 18:53:45,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:53:45,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79941631] [2021-11-13 18:53:45,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:45,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:53:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:45,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:53:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:45,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:45,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:53:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:45,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:45,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:53:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:45,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:45,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:53:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:45,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:45,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:53:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:45,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:45,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:45,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:53:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:45,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:45,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:53:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:45,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:45,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:53:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:45,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:45,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:53:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:53:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:53:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:53:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:53:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:53:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:53:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:53:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:53:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:53:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:53:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:53:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:53:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:53:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:53:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:53:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-13 18:53:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:53:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-13 18:53:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-13 18:53:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-13 18:53:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-13 18:53:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-13 18:53:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-13 18:53:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-13 18:53:46,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-11-13 18:53:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-13 18:53:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:53:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:53:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-11-13 18:53:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-11-13 18:53:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-13 18:53:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2021-11-13 18:53:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-13 18:53:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2021-11-13 18:53:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:46,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2021-11-13 18:53:46,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:53:46,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79941631] [2021-11-13 18:53:46,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79941631] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:53:46,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440270599] [2021-11-13 18:53:46,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:46,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:53:46,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:53:46,485 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:53:46,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 18:53:48,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:48,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 3334 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:53:48,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:53:49,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2021-11-13 18:53:49,782 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:53:49,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440270599] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:53:49,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:53:49,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2021-11-13 18:53:49,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577448921] [2021-11-13 18:53:49,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:53:49,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:53:49,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:53:49,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:53:49,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:53:49,786 INFO L87 Difference]: Start difference. First operand 15107 states and 20604 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) [2021-11-13 18:53:50,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:53:50,343 INFO L93 Difference]: Finished difference Result 30189 states and 41255 transitions. [2021-11-13 18:53:50,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:53:50,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) Word has length 456 [2021-11-13 18:53:50,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:53:50,555 INFO L225 Difference]: With dead ends: 30189 [2021-11-13 18:53:50,556 INFO L226 Difference]: Without dead ends: 15107 [2021-11-13 18:53:50,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 576 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:53:50,612 INFO L933 BasicCegarLoop]: 2452 mSDtfsCounter, 2209 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 2452 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.14ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.31ms IncrementalHoareTripleChecker+Time [2021-11-13 18:53:50,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2209 Valid, 2452 Invalid, 1 Unknown, 0 Unchecked, 5.14ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.31ms Time] [2021-11-13 18:53:50,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15107 states. [2021-11-13 18:53:51,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15107 to 15107. [2021-11-13 18:53:51,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15107 states, 10287 states have (on average 1.2491494118790707) internal successors, (12850), 10570 states have internal predecessors, (12850), 3865 states have call successors, (3865), 945 states have call predecessors, (3865), 954 states have return successors, (3878), 3777 states have call predecessors, (3878), 3865 states have call successors, (3878) [2021-11-13 18:53:51,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15107 states to 15107 states and 20593 transitions. [2021-11-13 18:53:51,624 INFO L78 Accepts]: Start accepts. Automaton has 15107 states and 20593 transitions. Word has length 456 [2021-11-13 18:53:51,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:53:51,628 INFO L470 AbstractCegarLoop]: Abstraction has 15107 states and 20593 transitions. [2021-11-13 18:53:51,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) [2021-11-13 18:53:51,629 INFO L276 IsEmpty]: Start isEmpty. Operand 15107 states and 20593 transitions. [2021-11-13 18:53:51,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2021-11-13 18:53:51,663 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:53:51,664 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:53:51,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 18:53:51,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-13 18:53:51,879 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:53:51,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:53:51,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1962883486, now seen corresponding path program 1 times [2021-11-13 18:53:51,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:53:51,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127781585] [2021-11-13 18:53:51,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:51,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:53:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:53:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:52,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:53:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:53:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:53:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:53:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:53:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:53:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:53:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:52,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:53:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:53:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:53:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:53:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:53:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:53:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:53:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:53:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:52,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:53:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:53:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:53:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:53:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:53:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:53:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:53:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:53:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-13 18:53:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:53:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-13 18:53:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-13 18:53:52,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:52,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-13 18:53:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-13 18:53:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-13 18:53:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-13 18:53:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-13 18:53:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-11-13 18:53:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-13 18:53:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:53:52,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:53:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-11-13 18:53:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-11-13 18:53:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-13 18:53:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2021-11-13 18:53:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:52,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-13 18:53:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2021-11-13 18:53:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:52,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2021-11-13 18:53:52,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:53:52,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127781585] [2021-11-13 18:53:52,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127781585] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:53:52,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649901377] [2021-11-13 18:53:52,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:52,898 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:53:52,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:53:52,903 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:53:52,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 18:53:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:54,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 3335 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:53:54,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:53:55,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2021-11-13 18:53:55,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:53:55,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649901377] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:53:55,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:53:55,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2021-11-13 18:53:55,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816303122] [2021-11-13 18:53:55,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:53:55,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:53:55,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:53:55,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:53:55,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:53:55,894 INFO L87 Difference]: Start difference. First operand 15107 states and 20593 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 2 states have internal predecessors, (158), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) [2021-11-13 18:53:56,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:53:56,595 INFO L93 Difference]: Finished difference Result 30189 states and 41233 transitions. [2021-11-13 18:53:56,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:53:56,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 2 states have internal predecessors, (158), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) Word has length 457 [2021-11-13 18:53:56,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:53:56,675 INFO L225 Difference]: With dead ends: 30189 [2021-11-13 18:53:56,675 INFO L226 Difference]: Without dead ends: 15107 [2021-11-13 18:53:56,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 577 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:53:56,732 INFO L933 BasicCegarLoop]: 2451 mSDtfsCounter, 2207 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2207 SdHoareTripleChecker+Valid, 2451 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.11ms IncrementalHoareTripleChecker+Time [2021-11-13 18:53:56,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2207 Valid, 2451 Invalid, 1 Unknown, 0 Unchecked, 5.05ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 8.11ms Time] [2021-11-13 18:53:56,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15107 states. [2021-11-13 18:53:57,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15107 to 15107. [2021-11-13 18:53:57,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15107 states, 10287 states have (on average 1.248080101098474) internal successors, (12839), 10570 states have internal predecessors, (12839), 3865 states have call successors, (3865), 945 states have call predecessors, (3865), 954 states have return successors, (3878), 3777 states have call predecessors, (3878), 3865 states have call successors, (3878) [2021-11-13 18:53:57,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15107 states to 15107 states and 20582 transitions. [2021-11-13 18:53:57,778 INFO L78 Accepts]: Start accepts. Automaton has 15107 states and 20582 transitions. Word has length 457 [2021-11-13 18:53:57,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:53:57,780 INFO L470 AbstractCegarLoop]: Abstraction has 15107 states and 20582 transitions. [2021-11-13 18:53:57,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 2 states have internal predecessors, (158), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) [2021-11-13 18:53:57,780 INFO L276 IsEmpty]: Start isEmpty. Operand 15107 states and 20582 transitions. [2021-11-13 18:53:57,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2021-11-13 18:53:57,797 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:53:57,798 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:53:57,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-13 18:53:58,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:53:58,011 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:53:58,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:53:58,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1110515446, now seen corresponding path program 1 times [2021-11-13 18:53:58,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:53:58,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120160459] [2021-11-13 18:53:58,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:58,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:53:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:53:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:53:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:53:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:53:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:53:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:53:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:53:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:53:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:53:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:53:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:53:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:53:58,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:53:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:53:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:53:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:53:58,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:53:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:53:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:53:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:53:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:53:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:53:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:53:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:53:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-13 18:53:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:53:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-13 18:53:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-13 18:53:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-13 18:53:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-13 18:53:58,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-13 18:53:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-13 18:53:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-13 18:53:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-11-13 18:53:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-13 18:53:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:53:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:53:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-11-13 18:53:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-11-13 18:53:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-13 18:53:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2021-11-13 18:53:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:58,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:59,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-13 18:53:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:59,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:53:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:59,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2021-11-13 18:53:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:59,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2021-11-13 18:53:59,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:53:59,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120160459] [2021-11-13 18:53:59,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120160459] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:53:59,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559359571] [2021-11-13 18:53:59,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:59,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:53:59,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:53:59,029 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:53:59,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-13 18:54:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:00,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 3336 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:54:00,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:01,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2021-11-13 18:54:01,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:54:01,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559359571] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:54:01,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:54:01,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2021-11-13 18:54:01,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697286735] [2021-11-13 18:54:01,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:54:01,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:54:01,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:54:01,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:54:01,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:54:01,847 INFO L87 Difference]: Start difference. First operand 15107 states and 20582 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) [2021-11-13 18:54:02,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:54:02,649 INFO L93 Difference]: Finished difference Result 30189 states and 41211 transitions. [2021-11-13 18:54:02,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:54:02,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) Word has length 458 [2021-11-13 18:54:02,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:54:02,718 INFO L225 Difference]: With dead ends: 30189 [2021-11-13 18:54:02,719 INFO L226 Difference]: Without dead ends: 15107 [2021-11-13 18:54:02,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:54:02,765 INFO L933 BasicCegarLoop]: 2450 mSDtfsCounter, 2205 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2205 SdHoareTripleChecker+Valid, 2450 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.25ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.34ms IncrementalHoareTripleChecker+Time [2021-11-13 18:54:02,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2205 Valid, 2450 Invalid, 1 Unknown, 0 Unchecked, 5.25ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.34ms Time] [2021-11-13 18:54:02,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15107 states. [2021-11-13 18:54:03,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15107 to 15107. [2021-11-13 18:54:03,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15107 states, 10287 states have (on average 1.2470107903178769) internal successors, (12828), 10570 states have internal predecessors, (12828), 3865 states have call successors, (3865), 945 states have call predecessors, (3865), 954 states have return successors, (3878), 3777 states have call predecessors, (3878), 3865 states have call successors, (3878) [2021-11-13 18:54:03,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15107 states to 15107 states and 20571 transitions. [2021-11-13 18:54:03,886 INFO L78 Accepts]: Start accepts. Automaton has 15107 states and 20571 transitions. Word has length 458 [2021-11-13 18:54:03,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:54:03,887 INFO L470 AbstractCegarLoop]: Abstraction has 15107 states and 20571 transitions. [2021-11-13 18:54:03,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) [2021-11-13 18:54:03,887 INFO L276 IsEmpty]: Start isEmpty. Operand 15107 states and 20571 transitions. [2021-11-13 18:54:03,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2021-11-13 18:54:03,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:54:03,898 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:54:03,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-13 18:54:04,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:54:04,099 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:54:04,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:04,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1782085222, now seen corresponding path program 1 times [2021-11-13 18:54:04,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:54:04,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961415353] [2021-11-13 18:54:04,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:04,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:54:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:54:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:04,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:54:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:54:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:54:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:54:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:54:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:54:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:54:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:54:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:54:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:54:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:54:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:54:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:54:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:54:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:54:04,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:54:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:54:04,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:54:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:54:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:54:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:54:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:54:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:54:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-13 18:54:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:54:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-13 18:54:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-13 18:54:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-13 18:54:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-13 18:54:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-13 18:54:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-13 18:54:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-13 18:54:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-11-13 18:54:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-13 18:54:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:54:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:54:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-11-13 18:54:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-11-13 18:54:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-13 18:54:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2021-11-13 18:54:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-13 18:54:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2021-11-13 18:54:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:04,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2021-11-13 18:54:04,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:54:04,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961415353] [2021-11-13 18:54:04,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961415353] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:54:04,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67182477] [2021-11-13 18:54:04,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:04,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:54:04,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:54:04,963 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:54:04,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-13 18:54:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:06,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 3337 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:54:06,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:07,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2021-11-13 18:54:07,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:54:07,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67182477] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:54:07,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:54:07,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2021-11-13 18:54:07,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946268269] [2021-11-13 18:54:07,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:54:07,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:54:07,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:54:07,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:54:07,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:54:07,965 INFO L87 Difference]: Start difference. First operand 15107 states and 20571 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) [2021-11-13 18:54:08,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:54:08,604 INFO L93 Difference]: Finished difference Result 30189 states and 41189 transitions. [2021-11-13 18:54:08,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:54:08,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) Word has length 459 [2021-11-13 18:54:08,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:54:08,662 INFO L225 Difference]: With dead ends: 30189 [2021-11-13 18:54:08,663 INFO L226 Difference]: Without dead ends: 15107 [2021-11-13 18:54:08,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 585 GetRequests, 579 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:54:08,708 INFO L933 BasicCegarLoop]: 2449 mSDtfsCounter, 2203 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2203 SdHoareTripleChecker+Valid, 2449 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.92ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.35ms IncrementalHoareTripleChecker+Time [2021-11-13 18:54:08,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2203 Valid, 2449 Invalid, 1 Unknown, 0 Unchecked, 4.92ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.35ms Time] [2021-11-13 18:54:08,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15107 states. [2021-11-13 18:54:09,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15107 to 15107. [2021-11-13 18:54:09,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15107 states, 10287 states have (on average 1.24594147953728) internal successors, (12817), 10570 states have internal predecessors, (12817), 3865 states have call successors, (3865), 945 states have call predecessors, (3865), 954 states have return successors, (3878), 3777 states have call predecessors, (3878), 3865 states have call successors, (3878) [2021-11-13 18:54:09,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15107 states to 15107 states and 20560 transitions. [2021-11-13 18:54:09,661 INFO L78 Accepts]: Start accepts. Automaton has 15107 states and 20560 transitions. Word has length 459 [2021-11-13 18:54:09,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:54:09,662 INFO L470 AbstractCegarLoop]: Abstraction has 15107 states and 20560 transitions. [2021-11-13 18:54:09,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) [2021-11-13 18:54:09,663 INFO L276 IsEmpty]: Start isEmpty. Operand 15107 states and 20560 transitions. [2021-11-13 18:54:09,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2021-11-13 18:54:09,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:54:09,675 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:54:09,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-13 18:54:09,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-13 18:54:09,876 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:54:09,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:09,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1011395194, now seen corresponding path program 1 times [2021-11-13 18:54:09,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:54:09,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013973770] [2021-11-13 18:54:09,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:09,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:54:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:54:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:54:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:54:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:54:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:54:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:54:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:54:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:54:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:10,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:54:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:54:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:54:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:54:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:54:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:54:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:54:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:54:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:54:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:54:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:54:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:54:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:54:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:54:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:54:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:54:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-13 18:54:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:54:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-13 18:54:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-13 18:54:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-13 18:54:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-13 18:54:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-13 18:54:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-13 18:54:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-13 18:54:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-11-13 18:54:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-13 18:54:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:54:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:54:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-11-13 18:54:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-11-13 18:54:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-13 18:54:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2021-11-13 18:54:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-13 18:54:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2021-11-13 18:54:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:10,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2021-11-13 18:54:10,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:54:10,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013973770] [2021-11-13 18:54:10,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013973770] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:54:10,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97248026] [2021-11-13 18:54:10,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:10,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:54:10,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:54:10,933 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:54:10,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-13 18:54:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:12,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 3338 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:54:12,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:13,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2021-11-13 18:54:13,843 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:54:13,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97248026] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:54:13,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:54:13,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2021-11-13 18:54:13,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6221766] [2021-11-13 18:54:13,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:54:13,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:54:13,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:54:13,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:54:13,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:54:13,847 INFO L87 Difference]: Start difference. First operand 15107 states and 20560 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) [2021-11-13 18:54:14,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:54:14,715 INFO L93 Difference]: Finished difference Result 30189 states and 41167 transitions. [2021-11-13 18:54:14,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:54:14,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) Word has length 460 [2021-11-13 18:54:14,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:54:14,768 INFO L225 Difference]: With dead ends: 30189 [2021-11-13 18:54:14,768 INFO L226 Difference]: Without dead ends: 15107 [2021-11-13 18:54:14,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 586 GetRequests, 580 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:54:14,808 INFO L933 BasicCegarLoop]: 2448 mSDtfsCounter, 2201 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2201 SdHoareTripleChecker+Valid, 2448 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.58ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.38ms IncrementalHoareTripleChecker+Time [2021-11-13 18:54:14,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2201 Valid, 2448 Invalid, 1 Unknown, 0 Unchecked, 5.58ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.38ms Time] [2021-11-13 18:54:14,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15107 states. [2021-11-13 18:54:15,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15107 to 15107. [2021-11-13 18:54:15,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15107 states, 10287 states have (on average 1.2448721687566833) internal successors, (12806), 10570 states have internal predecessors, (12806), 3865 states have call successors, (3865), 945 states have call predecessors, (3865), 954 states have return successors, (3878), 3777 states have call predecessors, (3878), 3865 states have call successors, (3878) [2021-11-13 18:54:15,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15107 states to 15107 states and 20549 transitions. [2021-11-13 18:54:15,726 INFO L78 Accepts]: Start accepts. Automaton has 15107 states and 20549 transitions. Word has length 460 [2021-11-13 18:54:15,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:54:15,727 INFO L470 AbstractCegarLoop]: Abstraction has 15107 states and 20549 transitions. [2021-11-13 18:54:15,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) [2021-11-13 18:54:15,727 INFO L276 IsEmpty]: Start isEmpty. Operand 15107 states and 20549 transitions. [2021-11-13 18:54:15,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-11-13 18:54:15,743 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:54:15,743 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:54:15,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-13 18:54:15,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-13 18:54:15,944 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:54:15,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:15,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1519675798, now seen corresponding path program 1 times [2021-11-13 18:54:15,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:54:15,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391277744] [2021-11-13 18:54:15,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:15,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:54:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:54:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:54:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:54:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:54:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:54:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:54:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:54:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:54:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:54:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:54:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:54:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:54:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:54:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:54:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:54:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:54:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:54:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:54:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:54:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:54:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:54:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:54:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:54:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:54:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-13 18:54:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:54:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-13 18:54:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-13 18:54:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-13 18:54:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-13 18:54:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-13 18:54:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-13 18:54:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-13 18:54:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-11-13 18:54:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-13 18:54:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:54:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:54:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-11-13 18:54:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-11-13 18:54:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-13 18:54:16,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2021-11-13 18:54:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-13 18:54:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2021-11-13 18:54:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2021-11-13 18:54:16,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:54:16,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391277744] [2021-11-13 18:54:16,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391277744] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:54:16,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687703208] [2021-11-13 18:54:16,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:16,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:54:16,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:54:16,782 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:54:16,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-13 18:54:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:17,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 3339 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 18:54:17,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:18,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 1245 trivial. 0 not checked. [2021-11-13 18:54:18,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:54:20,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2021-11-13 18:54:20,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687703208] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:54:20,074 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:54:20,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 9 [2021-11-13 18:54:20,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104313513] [2021-11-13 18:54:20,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:54:20,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:54:20,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:54:20,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:54:20,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:54:20,078 INFO L87 Difference]: Start difference. First operand 15107 states and 20549 transitions. Second operand has 9 states, 9 states have (on average 20.77777777777778) internal successors, (187), 6 states have internal predecessors, (187), 3 states have call successors, (69), 5 states have call predecessors, (69), 2 states have return successors, (48), 2 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-13 18:54:22,196 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:54:24,421 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:54:26,627 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:54:38,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:54:38,402 INFO L93 Difference]: Finished difference Result 32666 states and 44785 transitions. [2021-11-13 18:54:38,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-13 18:54:38,403 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.77777777777778) internal successors, (187), 6 states have internal predecessors, (187), 3 states have call successors, (69), 5 states have call predecessors, (69), 2 states have return successors, (48), 2 states have call predecessors, (48), 3 states have call successors, (48) Word has length 461 [2021-11-13 18:54:38,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:54:38,477 INFO L225 Difference]: With dead ends: 32666 [2021-11-13 18:54:38,477 INFO L226 Difference]: Without dead ends: 17584 [2021-11-13 18:54:38,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1063 GetRequests, 1044 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:54:38,509 INFO L933 BasicCegarLoop]: 2094 mSDtfsCounter, 2418 mSDsluCounter, 5655 mSDsCounter, 0 mSdLazyCounter, 5761 mSolverCounterSat, 2388 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14614.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2533 SdHoareTripleChecker+Valid, 7749 SdHoareTripleChecker+Invalid, 8152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 66.87ms SdHoareTripleChecker+Time, 2388 IncrementalHoareTripleChecker+Valid, 5761 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16648.22ms IncrementalHoareTripleChecker+Time [2021-11-13 18:54:38,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2533 Valid, 7749 Invalid, 8152 Unknown, 0 Unchecked, 66.87ms Time], IncrementalHoareTripleChecker [2388 Valid, 5761 Invalid, 3 Unknown, 0 Unchecked, 16648.22ms Time] [2021-11-13 18:54:38,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17584 states. [2021-11-13 18:54:39,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17584 to 15635. [2021-11-13 18:54:39,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15635 states, 10683 states have (on average 1.2419732284938687) internal successors, (13268), 10966 states have internal predecessors, (13268), 3997 states have call successors, (3997), 945 states have call predecessors, (3997), 954 states have return successors, (4010), 3909 states have call predecessors, (4010), 3997 states have call successors, (4010) [2021-11-13 18:54:39,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15635 states to 15635 states and 21275 transitions. [2021-11-13 18:54:39,453 INFO L78 Accepts]: Start accepts. Automaton has 15635 states and 21275 transitions. Word has length 461 [2021-11-13 18:54:39,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:54:39,454 INFO L470 AbstractCegarLoop]: Abstraction has 15635 states and 21275 transitions. [2021-11-13 18:54:39,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.77777777777778) internal successors, (187), 6 states have internal predecessors, (187), 3 states have call successors, (69), 5 states have call predecessors, (69), 2 states have return successors, (48), 2 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-13 18:54:39,454 INFO L276 IsEmpty]: Start isEmpty. Operand 15635 states and 21275 transitions. [2021-11-13 18:54:39,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2021-11-13 18:54:39,467 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:54:39,467 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:54:39,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-13 18:54:39,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-13 18:54:39,687 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:54:39,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:39,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1032901444, now seen corresponding path program 1 times [2021-11-13 18:54:39,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:54:39,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275680206] [2021-11-13 18:54:39,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:39,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:54:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:40,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:54:40,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:40,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:40,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:54:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:40,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:40,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:54:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:40,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:40,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:54:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:40,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:40,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:54:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:40,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:40,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:54:40,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:40,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:40,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:54:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:40,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:40,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:40,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:54:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:40,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:54:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:54:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:41,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:54:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:54:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:54:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:54:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:54:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:54:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:54:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:54:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:54:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:54:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:54:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:54:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:54:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:54:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-13 18:54:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:54:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-13 18:54:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-13 18:54:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-13 18:54:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-13 18:54:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-13 18:54:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-13 18:54:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-13 18:54:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-11-13 18:54:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-13 18:54:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:41,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:54:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:54:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-11-13 18:54:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-11-13 18:54:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-13 18:54:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2021-11-13 18:54:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:54:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2021-11-13 18:54:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:54:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2021-11-13 18:54:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2021-11-13 18:54:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:41,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1268 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1265 trivial. 0 not checked. [2021-11-13 18:54:41,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:54:41,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275680206] [2021-11-13 18:54:41,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275680206] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:54:41,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819916704] [2021-11-13 18:54:41,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:41,745 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:54:41,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:54:41,747 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:54:41,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-13 18:54:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:43,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 3620 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-13 18:54:43,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:45,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1268 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 897 trivial. 0 not checked. [2021-11-13 18:54:45,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:54:45,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819916704] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:54:45,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:54:45,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [9] total 19 [2021-11-13 18:54:45,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727839623] [2021-11-13 18:54:45,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:54:45,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 18:54:45,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:54:45,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 18:54:45,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=305, Unknown=0, NotChecked=0, Total=342 [2021-11-13 18:54:45,087 INFO L87 Difference]: Start difference. First operand 15635 states and 21275 transitions. Second operand has 12 states, 11 states have (on average 19.272727272727273) internal successors, (212), 11 states have internal predecessors, (212), 5 states have call successors, (54), 3 states have call predecessors, (54), 5 states have return successors, (49), 5 states have call predecessors, (49), 5 states have call successors, (49) [2021-11-13 18:54:47,140 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:54:49,361 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:54:56,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:54:56,859 INFO L93 Difference]: Finished difference Result 43342 states and 59101 transitions. [2021-11-13 18:54:56,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 18:54:56,861 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 19.272727272727273) internal successors, (212), 11 states have internal predecessors, (212), 5 states have call successors, (54), 3 states have call predecessors, (54), 5 states have return successors, (49), 5 states have call predecessors, (49), 5 states have call successors, (49) Word has length 495 [2021-11-13 18:54:56,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:54:56,983 INFO L225 Difference]: With dead ends: 43342 [2021-11-13 18:54:56,983 INFO L226 Difference]: Without dead ends: 27730 [2021-11-13 18:54:57,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=118, Invalid=812, Unknown=0, NotChecked=0, Total=930 [2021-11-13 18:54:57,036 INFO L933 BasicCegarLoop]: 4293 mSDtfsCounter, 3439 mSDsluCounter, 36030 mSDsCounter, 0 mSdLazyCounter, 2888 mSolverCounterSat, 445 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8158.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3465 SdHoareTripleChecker+Valid, 40323 SdHoareTripleChecker+Invalid, 3335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 100.11ms SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 2888 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9394.02ms IncrementalHoareTripleChecker+Time [2021-11-13 18:54:57,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3465 Valid, 40323 Invalid, 3335 Unknown, 0 Unchecked, 100.11ms Time], IncrementalHoareTripleChecker [445 Valid, 2888 Invalid, 2 Unknown, 0 Unchecked, 9394.02ms Time] [2021-11-13 18:54:57,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27730 states. [2021-11-13 18:54:59,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27730 to 25789. [2021-11-13 18:54:59,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25789 states, 17710 states have (on average 1.245398080180689) internal successors, (22056), 18179 states have internal predecessors, (22056), 6527 states have call successors, (6527), 1542 states have call predecessors, (6527), 1551 states have return successors, (6540), 6375 states have call predecessors, (6540), 6527 states have call successors, (6540) [2021-11-13 18:54:59,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25789 states to 25789 states and 35123 transitions. [2021-11-13 18:54:59,139 INFO L78 Accepts]: Start accepts. Automaton has 25789 states and 35123 transitions. Word has length 495 [2021-11-13 18:54:59,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:54:59,140 INFO L470 AbstractCegarLoop]: Abstraction has 25789 states and 35123 transitions. [2021-11-13 18:54:59,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 19.272727272727273) internal successors, (212), 11 states have internal predecessors, (212), 5 states have call successors, (54), 3 states have call predecessors, (54), 5 states have return successors, (49), 5 states have call predecessors, (49), 5 states have call successors, (49) [2021-11-13 18:54:59,140 INFO L276 IsEmpty]: Start isEmpty. Operand 25789 states and 35123 transitions. [2021-11-13 18:54:59,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2021-11-13 18:54:59,170 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:54:59,170 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:54:59,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-13 18:54:59,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-13 18:54:59,380 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:54:59,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:59,380 INFO L85 PathProgramCache]: Analyzing trace with hash 752056585, now seen corresponding path program 1 times [2021-11-13 18:54:59,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:54:59,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477377256] [2021-11-13 18:54:59,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:59,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:54:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:59,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:54:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:59,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:59,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:54:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:59,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:59,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:54:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:59,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:59,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:54:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:59,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:59,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:54:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:59,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:54:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:55:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:55:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:55:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:55:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:55:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:55:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:55:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:55:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:55:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:55:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:55:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:55:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:55:00,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:55:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:55:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:55:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:55:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:55:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:55:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-13 18:55:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:55:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-13 18:55:00,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-11-13 18:55:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-11-13 18:55:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-11-13 18:55:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-13 18:55:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-11-13 18:55:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-11-13 18:55:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-11-13 18:55:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-11-13 18:55:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2021-11-13 18:55:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:55:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:55:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-11-13 18:55:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-11-13 18:55:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2021-11-13 18:55:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-11-13 18:55:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:55:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-13 18:55:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:55:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2021-11-13 18:55:00,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2021-11-13 18:55:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:00,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1268 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1265 trivial. 0 not checked. [2021-11-13 18:55:00,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:55:00,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477377256] [2021-11-13 18:55:00,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477377256] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:55:00,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461678665] [2021-11-13 18:55:00,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:55:00,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:55:00,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:55:00,635 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:55:00,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-13 18:55:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:02,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 3639 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-13 18:55:02,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:55:04,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1268 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 897 trivial. 0 not checked. [2021-11-13 18:55:04,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:55:04,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461678665] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:55:04,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:55:04,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [9] total 20 [2021-11-13 18:55:04,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084244981] [2021-11-13 18:55:04,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:55:04,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 18:55:04,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:55:04,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 18:55:04,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2021-11-13 18:55:04,174 INFO L87 Difference]: Start difference. First operand 25789 states and 35123 transitions. Second operand has 13 states, 12 states have (on average 18.0) internal successors, (216), 12 states have internal predecessors, (216), 6 states have call successors, (55), 3 states have call predecessors, (55), 5 states have return successors, (50), 6 states have call predecessors, (50), 6 states have call successors, (50) [2021-11-13 18:55:06,228 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:55:08,487 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:55:16,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:55:16,007 INFO L93 Difference]: Finished difference Result 63676 states and 86835 transitions. [2021-11-13 18:55:16,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-13 18:55:16,008 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 18.0) internal successors, (216), 12 states have internal predecessors, (216), 6 states have call successors, (55), 3 states have call predecessors, (55), 5 states have return successors, (50), 6 states have call predecessors, (50), 6 states have call successors, (50) Word has length 501 [2021-11-13 18:55:16,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:55:16,141 INFO L225 Difference]: With dead ends: 63676 [2021-11-13 18:55:16,142 INFO L226 Difference]: Without dead ends: 37910 [2021-11-13 18:55:16,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 624 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=166, Invalid=1094, Unknown=0, NotChecked=0, Total=1260 [2021-11-13 18:55:16,203 INFO L933 BasicCegarLoop]: 4383 mSDtfsCounter, 5230 mSDsluCounter, 40755 mSDsCounter, 0 mSdLazyCounter, 2478 mSolverCounterSat, 1135 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7734.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5243 SdHoareTripleChecker+Valid, 45138 SdHoareTripleChecker+Invalid, 3615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 79.98ms SdHoareTripleChecker+Time, 1135 IncrementalHoareTripleChecker+Valid, 2478 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8902.96ms IncrementalHoareTripleChecker+Time [2021-11-13 18:55:16,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5243 Valid, 45138 Invalid, 3615 Unknown, 0 Unchecked, 79.98ms Time], IncrementalHoareTripleChecker [1135 Valid, 2478 Invalid, 2 Unknown, 0 Unchecked, 8902.96ms Time] [2021-11-13 18:55:16,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37910 states. [2021-11-13 18:55:18,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37910 to 25795. [2021-11-13 18:55:18,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25795 states, 17712 states have (on average 1.2453703703703705) internal successors, (22058), 18183 states have internal predecessors, (22058), 6531 states have call successors, (6531), 1542 states have call predecessors, (6531), 1551 states have return successors, (6544), 6379 states have call predecessors, (6544), 6531 states have call successors, (6544) [2021-11-13 18:55:18,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25795 states to 25795 states and 35133 transitions. [2021-11-13 18:55:18,655 INFO L78 Accepts]: Start accepts. Automaton has 25795 states and 35133 transitions. Word has length 501 [2021-11-13 18:55:18,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:55:18,656 INFO L470 AbstractCegarLoop]: Abstraction has 25795 states and 35133 transitions. [2021-11-13 18:55:18,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 18.0) internal successors, (216), 12 states have internal predecessors, (216), 6 states have call successors, (55), 3 states have call predecessors, (55), 5 states have return successors, (50), 6 states have call predecessors, (50), 6 states have call successors, (50) [2021-11-13 18:55:18,656 INFO L276 IsEmpty]: Start isEmpty. Operand 25795 states and 35133 transitions. [2021-11-13 18:55:18,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2021-11-13 18:55:18,684 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:55:18,685 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:55:18,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-13 18:55:18,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-13 18:55:18,899 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:55:18,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:55:18,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1530192110, now seen corresponding path program 1 times [2021-11-13 18:55:18,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:55:18,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205007773] [2021-11-13 18:55:18,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:55:18,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:55:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:55:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:55:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:55:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:55:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:55:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:55:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:55:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:55:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:55:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:55:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:55:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:55:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:55:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:55:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:55:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:55:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:55:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:55:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:55:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:55:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:55:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:55:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:55:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:55:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-13 18:55:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:55:19,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-13 18:55:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-11-13 18:55:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-13 18:55:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-13 18:55:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-11-13 18:55:19,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-13 18:55:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-11-13 18:55:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-11-13 18:55:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2021-11-13 18:55:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2021-11-13 18:55:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:55:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:55:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2021-11-13 18:55:19,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2021-11-13 18:55:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2021-11-13 18:55:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2021-11-13 18:55:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:55:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2021-11-13 18:55:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:55:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:19,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:20,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2021-11-13 18:55:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:20,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:20,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2021-11-13 18:55:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:20,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1268 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1265 trivial. 0 not checked. [2021-11-13 18:55:20,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:55:20,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205007773] [2021-11-13 18:55:20,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205007773] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:55:20,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315031061] [2021-11-13 18:55:20,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:55:20,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:55:20,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:55:20,192 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:55:20,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-13 18:55:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:21,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 3659 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-13 18:55:21,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:55:23,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1268 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 897 trivial. 0 not checked. [2021-11-13 18:55:23,368 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:55:23,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315031061] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:55:23,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:55:23,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [9] total 20 [2021-11-13 18:55:23,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146977622] [2021-11-13 18:55:23,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:55:23,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 18:55:23,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:55:23,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 18:55:23,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2021-11-13 18:55:23,372 INFO L87 Difference]: Start difference. First operand 25795 states and 35133 transitions. Second operand has 13 states, 12 states have (on average 18.166666666666668) internal successors, (218), 12 states have internal predecessors, (218), 6 states have call successors, (55), 3 states have call predecessors, (55), 5 states have return successors, (50), 6 states have call predecessors, (50), 6 states have call successors, (50) [2021-11-13 18:55:25,430 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:55:27,722 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:55:35,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:55:35,664 INFO L93 Difference]: Finished difference Result 63686 states and 86849 transitions. [2021-11-13 18:55:35,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-13 18:55:35,665 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 18.166666666666668) internal successors, (218), 12 states have internal predecessors, (218), 6 states have call successors, (55), 3 states have call predecessors, (55), 5 states have return successors, (50), 6 states have call predecessors, (50), 6 states have call successors, (50) Word has length 503 [2021-11-13 18:55:35,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:55:35,807 INFO L225 Difference]: With dead ends: 63686 [2021-11-13 18:55:35,807 INFO L226 Difference]: Without dead ends: 37914 [2021-11-13 18:55:35,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 624 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=158, Invalid=1032, Unknown=0, NotChecked=0, Total=1190 [2021-11-13 18:55:35,876 INFO L933 BasicCegarLoop]: 3155 mSDtfsCounter, 3948 mSDsluCounter, 31603 mSDsCounter, 0 mSdLazyCounter, 2877 mSolverCounterSat, 631 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7965.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3978 SdHoareTripleChecker+Valid, 34758 SdHoareTripleChecker+Invalid, 3510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 75.18ms SdHoareTripleChecker+Time, 631 IncrementalHoareTripleChecker+Valid, 2877 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9285.99ms IncrementalHoareTripleChecker+Time [2021-11-13 18:55:35,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3978 Valid, 34758 Invalid, 3510 Unknown, 0 Unchecked, 75.18ms Time], IncrementalHoareTripleChecker [631 Valid, 2877 Invalid, 2 Unknown, 0 Unchecked, 9285.99ms Time] [2021-11-13 18:55:35,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37914 states. [2021-11-13 18:55:38,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37914 to 25789. [2021-11-13 18:55:38,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25789 states, 17710 states have (on average 1.245398080180689) internal successors, (22056), 18179 states have internal predecessors, (22056), 6527 states have call successors, (6527), 1542 states have call predecessors, (6527), 1551 states have return successors, (6540), 6375 states have call predecessors, (6540), 6527 states have call successors, (6540) [2021-11-13 18:55:38,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25789 states to 25789 states and 35123 transitions. [2021-11-13 18:55:38,278 INFO L78 Accepts]: Start accepts. Automaton has 25789 states and 35123 transitions. Word has length 503 [2021-11-13 18:55:38,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:55:38,279 INFO L470 AbstractCegarLoop]: Abstraction has 25789 states and 35123 transitions. [2021-11-13 18:55:38,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 18.166666666666668) internal successors, (218), 12 states have internal predecessors, (218), 6 states have call successors, (55), 3 states have call predecessors, (55), 5 states have return successors, (50), 6 states have call predecessors, (50), 6 states have call successors, (50) [2021-11-13 18:55:38,280 INFO L276 IsEmpty]: Start isEmpty. Operand 25789 states and 35123 transitions. [2021-11-13 18:55:38,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2021-11-13 18:55:38,389 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:55:38,390 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 15, 15, 15, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:55:38,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-13 18:55:38,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:55:38,591 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:55:38,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:55:38,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1418517334, now seen corresponding path program 1 times [2021-11-13 18:55:38,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:55:38,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539279847] [2021-11-13 18:55:38,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:55:38,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:55:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:38,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:55:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:38,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:38,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:55:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:38,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:38,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:55:38,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:38,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:38,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:55:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:39,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:55:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:55:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:55:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:55:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:55:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:55:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:55:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:55:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:55:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:55:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:55:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:55:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:55:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:55:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:55:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:55:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:55:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:55:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:55:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:55:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-13 18:55:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:55:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-13 18:55:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-11-13 18:55:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:39,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-11-13 18:55:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-11-13 18:55:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-11-13 18:55:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-13 18:55:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-13 18:55:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-11-13 18:55:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-11-13 18:55:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-13 18:55:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2021-11-13 18:55:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-11-13 18:55:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2021-11-13 18:55:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2021-11-13 18:55:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-11-13 18:55:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2021-11-13 18:55:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-11-13 18:55:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2021-11-13 18:55:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2021-11-13 18:55:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2021-11-13 18:55:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2021-11-13 18:55:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:39,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2021-11-13 18:55:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2021-11-13 18:55:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2021-11-13 18:55:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2021-11-13 18:55:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:55:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:55:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2021-11-13 18:55:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2021-11-13 18:55:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2021-11-13 18:55:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2021-11-13 18:55:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2021-11-13 18:55:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:55:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2021-11-13 18:55:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:55:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 600 [2021-11-13 18:55:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 618 [2021-11-13 18:55:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:40,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1735 trivial. 0 not checked. [2021-11-13 18:55:40,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:55:40,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539279847] [2021-11-13 18:55:40,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539279847] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:55:40,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:55:40,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 18:55:40,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146154741] [2021-11-13 18:55:40,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:55:40,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 18:55:40,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:55:40,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:55:40,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:55:40,218 INFO L87 Difference]: Start difference. First operand 25789 states and 35123 transitions. Second operand has 8 states, 8 states have (on average 32.0) internal successors, (256), 3 states have internal predecessors, (256), 3 states have call successors, (70), 7 states have call predecessors, (70), 1 states have return successors, (67), 2 states have call predecessors, (67), 3 states have call successors, (67) [2021-11-13 18:55:42,273 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:55:44,498 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:55:55,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:55:55,768 INFO L93 Difference]: Finished difference Result 54807 states and 74855 transitions. [2021-11-13 18:55:55,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:55:55,769 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 32.0) internal successors, (256), 3 states have internal predecessors, (256), 3 states have call successors, (70), 7 states have call predecessors, (70), 1 states have return successors, (67), 2 states have call predecessors, (67), 3 states have call successors, (67) Word has length 631 [2021-11-13 18:55:55,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:55:56,059 INFO L225 Difference]: With dead ends: 54807 [2021-11-13 18:55:56,060 INFO L226 Difference]: Without dead ends: 29043 [2021-11-13 18:55:56,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-13 18:55:56,119 INFO L933 BasicCegarLoop]: 2093 mSDtfsCounter, 2617 mSDsluCounter, 2931 mSDsCounter, 0 mSdLazyCounter, 3534 mSolverCounterSat, 2270 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11184.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2859 SdHoareTripleChecker+Valid, 5024 SdHoareTripleChecker+Invalid, 5806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.72ms SdHoareTripleChecker+Time, 2270 IncrementalHoareTripleChecker+Valid, 3534 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12900.62ms IncrementalHoareTripleChecker+Time [2021-11-13 18:55:56,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2859 Valid, 5024 Invalid, 5806 Unknown, 0 Unchecked, 54.72ms Time], IncrementalHoareTripleChecker [2270 Valid, 3534 Invalid, 2 Unknown, 0 Unchecked, 12900.62ms Time] [2021-11-13 18:55:56,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29043 states. [2021-11-13 18:55:58,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29043 to 25793. [2021-11-13 18:55:58,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25793 states, 17714 states have (on average 1.2453426668172067) internal successors, (22060), 18183 states have internal predecessors, (22060), 6527 states have call successors, (6527), 1542 states have call predecessors, (6527), 1551 states have return successors, (6540), 6375 states have call predecessors, (6540), 6527 states have call successors, (6540) [2021-11-13 18:55:58,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25793 states to 25793 states and 35127 transitions. [2021-11-13 18:55:58,595 INFO L78 Accepts]: Start accepts. Automaton has 25793 states and 35127 transitions. Word has length 631 [2021-11-13 18:55:58,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:55:58,596 INFO L470 AbstractCegarLoop]: Abstraction has 25793 states and 35127 transitions. [2021-11-13 18:55:58,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 32.0) internal successors, (256), 3 states have internal predecessors, (256), 3 states have call successors, (70), 7 states have call predecessors, (70), 1 states have return successors, (67), 2 states have call predecessors, (67), 3 states have call successors, (67) [2021-11-13 18:55:58,597 INFO L276 IsEmpty]: Start isEmpty. Operand 25793 states and 35127 transitions. [2021-11-13 18:55:58,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2021-11-13 18:55:58,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:55:58,708 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 15, 15, 15, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:55:58,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-13 18:55:58,709 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:55:58,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:55:58,710 INFO L85 PathProgramCache]: Analyzing trace with hash -783229580, now seen corresponding path program 1 times [2021-11-13 18:55:58,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:55:58,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765326984] [2021-11-13 18:55:58,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:55:58,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:55:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:55:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:55:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:55:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:55:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:55:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:55:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:55:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:55:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:55:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:55:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:55:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:55:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:55:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:55:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:55:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:55:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:55:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:55:59,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:55:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:55:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:55:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:55:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:55:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:55:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-13 18:55:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:55:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-13 18:55:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-11-13 18:55:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-11-13 18:55:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-11-13 18:55:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-11-13 18:55:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-13 18:55:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-11-13 18:55:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2021-11-13 18:55:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2021-11-13 18:55:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2021-11-13 18:55:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-11-13 18:55:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2021-11-13 18:55:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-11-13 18:55:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-13 18:55:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-11-13 18:55:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-11-13 18:55:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2021-11-13 18:55:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-13 18:55:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2021-11-13 18:55:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-11-13 18:55:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2021-11-13 18:55:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-11-13 18:55:59,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2021-11-13 18:55:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2021-11-13 18:55:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:55:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:59,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2021-11-13 18:56:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:00,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:00,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:56:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:00,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:56:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:00,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2021-11-13 18:56:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:00,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2021-11-13 18:56:00,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:00,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2021-11-13 18:56:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:00,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2021-11-13 18:56:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:00,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2021-11-13 18:56:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:00,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:56:00,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:00,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:00,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2021-11-13 18:56:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:00,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:56:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:00,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:00,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 603 [2021-11-13 18:56:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:00,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:00,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 621 [2021-11-13 18:56:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:00,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1750 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 1735 trivial. 0 not checked. [2021-11-13 18:56:00,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:56:00,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765326984] [2021-11-13 18:56:00,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765326984] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:56:00,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100489197] [2021-11-13 18:56:00,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:56:00,146 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:56:00,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:56:00,147 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:56:00,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-13 18:56:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:01,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 4456 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:56:01,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:56:03,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1750 backedges. 499 proven. 0 refuted. 0 times theorem prover too weak. 1251 trivial. 0 not checked. [2021-11-13 18:56:03,194 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:56:03,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100489197] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:56:03,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:56:03,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-11-13 18:56:03,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687161051] [2021-11-13 18:56:03,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:56:03,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:56:03,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:56:03,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:56:03,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:56:03,198 INFO L87 Difference]: Start difference. First operand 25793 states and 35127 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-11-13 18:56:05,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:56:05,618 INFO L93 Difference]: Finished difference Result 57771 states and 79187 transitions. [2021-11-13 18:56:05,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:56:05,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 634 [2021-11-13 18:56:05,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:56:05,740 INFO L225 Difference]: With dead ends: 57771 [2021-11-13 18:56:05,740 INFO L226 Difference]: Without dead ends: 32003 [2021-11-13 18:56:05,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 811 GetRequests, 803 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:56:05,934 INFO L933 BasicCegarLoop]: 3247 mSDtfsCounter, 501 mSDsluCounter, 2595 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 5842 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.37ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.19ms IncrementalHoareTripleChecker+Time [2021-11-13 18:56:05,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [655 Valid, 5842 Invalid, 9 Unknown, 0 Unchecked, 10.37ms Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 21.19ms Time] [2021-11-13 18:56:05,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32003 states. [2021-11-13 18:56:08,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32003 to 25797. [2021-11-13 18:56:08,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25797 states, 17718 states have (on average 1.2452872784738684) internal successors, (22064), 18187 states have internal predecessors, (22064), 6527 states have call successors, (6527), 1542 states have call predecessors, (6527), 1551 states have return successors, (6540), 6375 states have call predecessors, (6540), 6527 states have call successors, (6540) [2021-11-13 18:56:08,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25797 states to 25797 states and 35131 transitions. [2021-11-13 18:56:08,489 INFO L78 Accepts]: Start accepts. Automaton has 25797 states and 35131 transitions. Word has length 634 [2021-11-13 18:56:08,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:56:08,490 INFO L470 AbstractCegarLoop]: Abstraction has 25797 states and 35131 transitions. [2021-11-13 18:56:08,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-11-13 18:56:08,490 INFO L276 IsEmpty]: Start isEmpty. Operand 25797 states and 35131 transitions. [2021-11-13 18:56:08,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2021-11-13 18:56:08,552 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:56:08,553 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 15, 15, 15, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:56:08,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-13 18:56:08,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-13 18:56:08,754 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:56:08,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:56:08,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1410653821, now seen corresponding path program 1 times [2021-11-13 18:56:08,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:56:08,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770613121] [2021-11-13 18:56:08,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:56:08,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:56:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:56:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:56:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:56:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:56:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:56:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:56:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:56:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:56:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:56:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:56:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:56:09,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:56:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:56:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:56:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:56:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:56:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:56:09,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:56:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:56:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:56:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:56:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:56:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:56:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:56:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-13 18:56:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:56:09,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-13 18:56:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-11-13 18:56:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-11-13 18:56:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-11-13 18:56:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-11-13 18:56:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-13 18:56:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-11-13 18:56:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-13 18:56:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:56:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 18:56:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-11-13 18:56:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-11-13 18:56:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-11-13 18:56:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-11-13 18:56:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-13 18:56:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-11-13 18:56:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-13 18:56:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2021-11-13 18:56:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-11-13 18:56:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2021-11-13 18:56:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2021-11-13 18:56:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-11-13 18:56:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2021-11-13 18:56:09,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2021-11-13 18:56:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:09,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489 [2021-11-13 18:56:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2021-11-13 18:56:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2021-11-13 18:56:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2021-11-13 18:56:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:56:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:56:10,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 553 [2021-11-13 18:56:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2021-11-13 18:56:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 563 [2021-11-13 18:56:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 569 [2021-11-13 18:56:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:56:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 596 [2021-11-13 18:56:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:56:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2021-11-13 18:56:10,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:56:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 641 [2021-11-13 18:56:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:10,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1754 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 1739 trivial. 0 not checked. [2021-11-13 18:56:10,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:56:10,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770613121] [2021-11-13 18:56:10,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770613121] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:56:10,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888155656] [2021-11-13 18:56:10,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:56:10,194 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:56:10,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:56:10,195 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:56:10,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_084b3ee1-b3a4-42cb-a977-6a2dd9daa561/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-13 18:56:11,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:56:11,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 4516 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:56:11,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:56:13,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1754 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 1444 trivial. 0 not checked. [2021-11-13 18:56:13,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:56:13,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888155656] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:56:13,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:56:13,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-11-13 18:56:13,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452065302] [2021-11-13 18:56:13,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:56:13,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:56:13,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:56:13,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:56:13,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:56:13,211 INFO L87 Difference]: Start difference. First operand 25797 states and 35131 transitions. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 3 states have call successors, (75), 3 states have call predecessors, (75), 3 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71)