./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4d59f12bf134f1df229541fa7d7be9025273d18d299c01e889ca23a568445b7a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:41:57,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:41:57,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:41:57,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:41:57,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:41:57,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:41:57,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:41:57,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:41:57,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:41:57,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:41:57,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:41:57,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:41:57,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:41:57,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:41:57,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:41:57,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:41:57,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:41:57,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:41:57,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:41:57,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:41:57,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:41:57,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:41:57,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:41:57,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:41:57,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:41:57,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:41:57,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:41:57,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:41:57,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:41:57,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:41:57,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:41:57,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:41:57,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:41:57,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:41:57,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:41:57,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:41:57,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:41:57,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:41:57,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:41:57,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:41:57,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:41:57,855 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:41:57,875 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:41:57,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:41:57,876 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:41:57,876 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:41:57,877 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:41:57,877 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:41:57,877 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:41:57,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:41:57,878 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:41:57,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:41:57,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:41:57,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:41:57,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:41:57,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:41:57,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:41:57,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:41:57,888 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:41:57,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:41:57,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:41:57,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:41:57,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:41:57,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:41:57,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:41:57,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:41:57,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:41:57,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:41:57,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:41:57,893 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:41:57,893 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:41:57,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:41:57,894 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_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d59f12bf134f1df229541fa7d7be9025273d18d299c01e889ca23a568445b7a [2022-11-16 12:41:58,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:41:58,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:41:58,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:41:58,244 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:41:58,245 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:41:58,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2022-11-16 12:41:58,323 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8/data/f74356951/7910e22af898413097650b9c881df588/FLAG0acdc1323 [2022-11-16 12:41:59,140 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:41:59,141 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2022-11-16 12:41:59,190 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8/data/f74356951/7910e22af898413097650b9c881df588/FLAG0acdc1323 [2022-11-16 12:41:59,304 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8/data/f74356951/7910e22af898413097650b9c881df588 [2022-11-16 12:41:59,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:41:59,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:41:59,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:41:59,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:41:59,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:41:59,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:41:59" (1/1) ... [2022-11-16 12:41:59,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@617a1173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:59, skipping insertion in model container [2022-11-16 12:41:59,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:41:59" (1/1) ... [2022-11-16 12:41:59,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:41:59,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:42:01,134 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i[216842,216855] [2022-11-16 12:42:01,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:42:01,242 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:42:01,705 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i[216842,216855] [2022-11-16 12:42:01,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:42:01,782 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:42:01,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:01 WrapperNode [2022-11-16 12:42:01,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:42:01,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:42:01,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:42:01,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:42:01,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:01" (1/1) ... [2022-11-16 12:42:01,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:01" (1/1) ... [2022-11-16 12:42:02,017 INFO L138 Inliner]: procedures = 205, calls = 1417, calls flagged for inlining = 89, calls inlined = 83, statements flattened = 3249 [2022-11-16 12:42:02,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:42:02,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:42:02,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:42:02,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:42:02,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:01" (1/1) ... [2022-11-16 12:42:02,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:01" (1/1) ... [2022-11-16 12:42:02,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:01" (1/1) ... [2022-11-16 12:42:02,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:01" (1/1) ... [2022-11-16 12:42:02,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:01" (1/1) ... [2022-11-16 12:42:02,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:01" (1/1) ... [2022-11-16 12:42:02,239 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:01" (1/1) ... [2022-11-16 12:42:02,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:01" (1/1) ... [2022-11-16 12:42:02,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:42:02,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:42:02,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:42:02,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:42:02,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:01" (1/1) ... [2022-11-16 12:42:02,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:42:02,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:42:02,303 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:42:02,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:42:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-16 12:42:02,349 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-16 12:42:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure uas_zap_pending [2022-11-16 12:42:02,349 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_zap_pending [2022-11-16 12:42:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 12:42:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 12:42:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 12:42:02,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 12:42:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 12:42:02,350 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 12:42:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-16 12:42:02,351 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-16 12:42:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure uas_alloc_data_urb [2022-11-16 12:42:02,352 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_alloc_data_urb [2022-11-16 12:42:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-16 12:42:02,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-16 12:42:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 12:42:02,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 12:42:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-16 12:42:02,353 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-16 12:42:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-16 12:42:02,353 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-16 12:42:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 12:42:02,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 12:42:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure uas_add_work [2022-11-16 12:42:02,354 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_add_work [2022-11-16 12:42:02,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_3 [2022-11-16 12:42:02,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_3 [2022-11-16 12:42:02,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 12:42:02,354 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 12:42:02,354 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 12:42:02,354 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 12:42:02,355 INFO L130 BoogieDeclarations]: Found specification of procedure uas_find_endpoints [2022-11-16 12:42:02,355 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_find_endpoints [2022-11-16 12:42:02,355 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 12:42:02,355 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 12:42:02,355 INFO L130 BoogieDeclarations]: Found specification of procedure uas_log_cmd_state [2022-11-16 12:42:02,356 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_log_cmd_state [2022-11-16 12:42:02,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:42:02,356 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 12:42:02,356 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 12:42:02,356 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-11-16 12:42:02,357 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-11-16 12:42:02,357 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_urb [2022-11-16 12:42:02,357 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_urb [2022-11-16 12:42:02,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:42:02,358 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2022-11-16 12:42:02,358 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2022-11-16 12:42:02,358 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-11-16 12:42:02,358 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-11-16 12:42:02,358 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 12:42:02,358 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 12:42:02,359 INFO L130 BoogieDeclarations]: Found specification of procedure uas_xfer_data [2022-11-16 12:42:02,359 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_xfer_data [2022-11-16 12:42:02,359 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-11-16 12:42:02,360 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-11-16 12:42:02,360 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wait_anchor_empty_timeout [2022-11-16 12:42:02,361 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wait_anchor_empty_timeout [2022-11-16 12:42:02,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:42:02,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:42:02,363 INFO L130 BoogieDeclarations]: Found specification of procedure uas_try_complete [2022-11-16 12:42:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_try_complete [2022-11-16 12:42:02,363 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_report_bus_reset [2022-11-16 12:42:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_report_bus_reset [2022-11-16 12:42:02,364 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-16 12:42:02,364 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-16 12:42:02,364 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-16 12:42:02,364 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-16 12:42:02,364 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-16 12:42:02,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-16 12:42:02,365 INFO L130 BoogieDeclarations]: Found specification of procedure uas_wait_for_pending_cmnds [2022-11-16 12:42:02,365 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_wait_for_pending_cmnds [2022-11-16 12:42:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-11-16 12:42:02,366 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-11-16 12:42:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-16 12:42:02,366 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-16 12:42:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 12:42:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure uas_data_cmplt [2022-11-16 12:42:02,366 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_data_cmplt [2022-11-16 12:42:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-16 12:42:02,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-16 12:42:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2022-11-16 12:42:02,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2022-11-16 12:42:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 12:42:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure uas_shutdown [2022-11-16 12:42:02,368 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_shutdown [2022-11-16 12:42:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:42:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure uas_do_work [2022-11-16 12:42:02,368 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_do_work [2022-11-16 12:42:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 12:42:02,369 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 12:42:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-16 12:42:02,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-16 12:42:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-16 12:42:02,370 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-16 12:42:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-16 12:42:02,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-16 12:42:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure uas_disconnect [2022-11-16 12:42:02,371 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_disconnect [2022-11-16 12:42:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2022-11-16 12:42:02,372 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2022-11-16 12:42:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2022-11-16 12:42:02,372 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2022-11-16 12:42:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:42:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure usb_pipe_endpoint [2022-11-16 12:42:02,373 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_pipe_endpoint [2022-11-16 12:42:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_out [2022-11-16 12:42:02,373 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_out [2022-11-16 12:42:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 12:42:02,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 12:42:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-16 12:42:02,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-16 12:42:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure uas_stat_cmplt [2022-11-16 12:42:02,374 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_stat_cmplt [2022-11-16 12:42:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:42:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:42:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:42:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 12:42:02,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 12:42:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2022-11-16 12:42:02,379 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2022-11-16 12:42:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure uas_configure_endpoints [2022-11-16 12:42:02,379 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_configure_endpoints [2022-11-16 12:42:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-16 12:42:02,380 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-16 12:42:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure uas_free_unsubmitted_urbs [2022-11-16 12:42:02,382 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_free_unsubmitted_urbs [2022-11-16 12:42:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure uas_find_uas_alt_setting [2022-11-16 12:42:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_find_uas_alt_setting [2022-11-16 12:42:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-16 12:42:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-16 12:42:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_in [2022-11-16 12:42:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_in [2022-11-16 12:42:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-16 12:42:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-16 12:42:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2022-11-16 12:42:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2022-11-16 12:42:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure uas_submit_urbs [2022-11-16 12:42:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_submit_urbs [2022-11-16 12:42:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2022-11-16 12:42:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2022-11-16 12:42:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2022-11-16 12:42:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2022-11-16 12:42:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:42:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure uas_free_streams [2022-11-16 12:42:02,391 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_free_streams [2022-11-16 12:42:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-16 12:42:02,391 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-16 12:42:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:42:02,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:42:03,093 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:42:03,105 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:42:03,573 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 12:42:06,668 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:42:06,683 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:42:06,683 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:42:06,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:42:06 BoogieIcfgContainer [2022-11-16 12:42:06,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:42:06,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:42:06,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:42:06,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:42:06,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:41:59" (1/3) ... [2022-11-16 12:42:06,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290427c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:42:06, skipping insertion in model container [2022-11-16 12:42:06,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:42:01" (2/3) ... [2022-11-16 12:42:06,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290427c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:42:06, skipping insertion in model container [2022-11-16 12:42:06,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:42:06" (3/3) ... [2022-11-16 12:42:06,697 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2022-11-16 12:42:06,718 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:42:06,718 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:42:06,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:42:06,799 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6ab18d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:42:06,799 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:42:06,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 1028 states, 717 states have (on average 1.3430962343096233) internal successors, (963), 750 states have internal predecessors, (963), 243 states have call successors, (243), 67 states have call predecessors, (243), 66 states have return successors, (238), 230 states have call predecessors, (238), 238 states have call successors, (238) [2022-11-16 12:42:06,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 12:42:06,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:42:06,830 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:42:06,831 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:42:06,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:42:06,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1734777069, now seen corresponding path program 1 times [2022-11-16 12:42:06,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:42:06,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880311434] [2022-11-16 12:42:06,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:42:06,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:42:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:08,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:42:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:08,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:42:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:08,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:42:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:08,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:42:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:08,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:42:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:08,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:42:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:08,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:42:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:08,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:42:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:08,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:42:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:08,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:42:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:08,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:42:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:08,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-16 12:42:08,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:08,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 12:42:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:08,197 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-16 12:42:08,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:42:08,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880311434] [2022-11-16 12:42:08,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880311434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:42:08,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:42:08,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:42:08,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294096325] [2022-11-16 12:42:08,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:42:08,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:42:08,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:42:08,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:42:08,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:42:08,247 INFO L87 Difference]: Start difference. First operand has 1028 states, 717 states have (on average 1.3430962343096233) internal successors, (963), 750 states have internal predecessors, (963), 243 states have call successors, (243), 67 states have call predecessors, (243), 66 states have return successors, (238), 230 states have call predecessors, (238), 238 states have call successors, (238) Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 12:42:19,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:42:19,894 INFO L93 Difference]: Finished difference Result 3707 states and 5613 transitions. [2022-11-16 12:42:19,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:42:19,897 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 98 [2022-11-16 12:42:19,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:42:19,952 INFO L225 Difference]: With dead ends: 3707 [2022-11-16 12:42:19,952 INFO L226 Difference]: Without dead ends: 2654 [2022-11-16 12:42:19,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:42:19,973 INFO L413 NwaCegarLoop]: 988 mSDtfsCounter, 4627 mSDsluCounter, 2578 mSDsCounter, 0 mSdLazyCounter, 4401 mSolverCounterSat, 2944 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4806 SdHoareTripleChecker+Valid, 3566 SdHoareTripleChecker+Invalid, 7345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2944 IncrementalHoareTripleChecker+Valid, 4401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:42:19,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4806 Valid, 3566 Invalid, 7345 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2944 Valid, 4401 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2022-11-16 12:42:19,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2654 states. [2022-11-16 12:42:20,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2654 to 2051. [2022-11-16 12:42:20,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2051 states, 1429 states have (on average 1.3358992302309307) internal successors, (1909), 1490 states have internal predecessors, (1909), 487 states have call successors, (487), 131 states have call predecessors, (487), 134 states have return successors, (525), 468 states have call predecessors, (525), 486 states have call successors, (525) [2022-11-16 12:42:20,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2051 states to 2051 states and 2921 transitions. [2022-11-16 12:42:20,239 INFO L78 Accepts]: Start accepts. Automaton has 2051 states and 2921 transitions. Word has length 98 [2022-11-16 12:42:20,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:42:20,240 INFO L495 AbstractCegarLoop]: Abstraction has 2051 states and 2921 transitions. [2022-11-16 12:42:20,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 12:42:20,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2051 states and 2921 transitions. [2022-11-16 12:42:20,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-16 12:42:20,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:42:20,246 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:42:20,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:42:20,247 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:42:20,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:42:20,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1671052585, now seen corresponding path program 1 times [2022-11-16 12:42:20,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:42:20,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340689950] [2022-11-16 12:42:20,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:42:20,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:42:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:20,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:42:20,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:20,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:42:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:20,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:42:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:20,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:42:20,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:20,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:42:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:20,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:42:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:20,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:42:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:20,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:42:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:20,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:42:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:20,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:42:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:20,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:42:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:20,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:42:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:20,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:42:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:20,937 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-16 12:42:20,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:42:20,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340689950] [2022-11-16 12:42:20,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340689950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:42:20,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:42:20,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:42:20,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998895053] [2022-11-16 12:42:20,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:42:20,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:42:20,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:42:20,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:42:20,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:42:20,942 INFO L87 Difference]: Start difference. First operand 2051 states and 2921 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 12:42:30,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:42:30,557 INFO L93 Difference]: Finished difference Result 6028 states and 9007 transitions. [2022-11-16 12:42:30,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:42:30,559 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 99 [2022-11-16 12:42:30,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:42:30,588 INFO L225 Difference]: With dead ends: 6028 [2022-11-16 12:42:30,588 INFO L226 Difference]: Without dead ends: 3990 [2022-11-16 12:42:30,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:42:30,600 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 4876 mSDsluCounter, 2033 mSDsCounter, 0 mSdLazyCounter, 3718 mSolverCounterSat, 3078 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5055 SdHoareTripleChecker+Valid, 2958 SdHoareTripleChecker+Invalid, 6796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3078 IncrementalHoareTripleChecker+Valid, 3718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:42:30,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5055 Valid, 2958 Invalid, 6796 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3078 Valid, 3718 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2022-11-16 12:42:30,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3990 states. [2022-11-16 12:42:30,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3990 to 3098. [2022-11-16 12:42:30,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3098 states, 2157 states have (on average 1.3342605470560964) internal successors, (2878), 2253 states have internal predecessors, (2878), 734 states have call successors, (734), 196 states have call predecessors, (734), 206 states have return successors, (836), 710 states have call predecessors, (836), 733 states have call successors, (836) [2022-11-16 12:42:30,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3098 states to 3098 states and 4448 transitions. [2022-11-16 12:42:30,892 INFO L78 Accepts]: Start accepts. Automaton has 3098 states and 4448 transitions. Word has length 99 [2022-11-16 12:42:30,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:42:30,895 INFO L495 AbstractCegarLoop]: Abstraction has 3098 states and 4448 transitions. [2022-11-16 12:42:30,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 12:42:30,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3098 states and 4448 transitions. [2022-11-16 12:42:30,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-16 12:42:30,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:42:30,901 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:42:30,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:42:30,902 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:42:30,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:42:30,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1867471808, now seen corresponding path program 1 times [2022-11-16 12:42:30,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:42:30,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341661125] [2022-11-16 12:42:30,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:42:30,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:42:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:31,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:42:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:31,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:42:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:31,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:42:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:31,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:42:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:31,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:42:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:31,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:42:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:31,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:42:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:31,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:42:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:31,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:42:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:31,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:42:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:31,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:42:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:31,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 12:42:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:31,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 12:42:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:31,577 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-16 12:42:31,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:42:31,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341661125] [2022-11-16 12:42:31,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341661125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:42:31,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:42:31,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:42:31,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256748701] [2022-11-16 12:42:31,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:42:31,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:42:31,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:42:31,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:42:31,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:42:31,584 INFO L87 Difference]: Start difference. First operand 3098 states and 4448 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 12:42:39,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:42:39,858 INFO L93 Difference]: Finished difference Result 8407 states and 12682 transitions. [2022-11-16 12:42:39,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:42:39,859 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 101 [2022-11-16 12:42:39,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:42:39,895 INFO L225 Difference]: With dead ends: 8407 [2022-11-16 12:42:39,895 INFO L226 Difference]: Without dead ends: 5322 [2022-11-16 12:42:39,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:42:39,909 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 5820 mSDsluCounter, 1651 mSDsCounter, 0 mSdLazyCounter, 3074 mSolverCounterSat, 3878 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5999 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 6952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3878 IncrementalHoareTripleChecker+Valid, 3074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:42:39,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5999 Valid, 2576 Invalid, 6952 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3878 Valid, 3074 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-11-16 12:42:39,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5322 states. [2022-11-16 12:42:40,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5322 to 4143. [2022-11-16 12:42:40,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4143 states, 2885 states have (on average 1.3331022530329288) internal successors, (3846), 3016 states have internal predecessors, (3846), 979 states have call successors, (979), 261 states have call predecessors, (979), 278 states have return successors, (1161), 950 states have call predecessors, (1161), 978 states have call successors, (1161) [2022-11-16 12:42:40,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4143 states to 4143 states and 5986 transitions. [2022-11-16 12:42:40,200 INFO L78 Accepts]: Start accepts. Automaton has 4143 states and 5986 transitions. Word has length 101 [2022-11-16 12:42:40,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:42:40,201 INFO L495 AbstractCegarLoop]: Abstraction has 4143 states and 5986 transitions. [2022-11-16 12:42:40,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 12:42:40,202 INFO L276 IsEmpty]: Start isEmpty. Operand 4143 states and 5986 transitions. [2022-11-16 12:42:40,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-16 12:42:40,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:42:40,204 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:42:40,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:42:40,205 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:42:40,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:42:40,205 INFO L85 PathProgramCache]: Analyzing trace with hash -321152074, now seen corresponding path program 1 times [2022-11-16 12:42:40,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:42:40,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072977687] [2022-11-16 12:42:40,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:42:40,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:42:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:40,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:42:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:40,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:42:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:40,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:42:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:40,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:42:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:40,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:42:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:40,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:42:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:40,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:42:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:40,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:42:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:40,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:42:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:40,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:42:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:40,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 12:42:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:40,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 12:42:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:40,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-16 12:42:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:40,803 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-16 12:42:40,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:42:40,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072977687] [2022-11-16 12:42:40,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072977687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:42:40,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:42:40,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:42:40,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198543627] [2022-11-16 12:42:40,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:42:40,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:42:40,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:42:40,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:42:40,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:42:40,806 INFO L87 Difference]: Start difference. First operand 4143 states and 5986 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 12:42:49,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:42:49,291 INFO L93 Difference]: Finished difference Result 10749 states and 16264 transitions. [2022-11-16 12:42:49,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:42:49,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 100 [2022-11-16 12:42:49,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:42:49,333 INFO L225 Difference]: With dead ends: 10749 [2022-11-16 12:42:49,334 INFO L226 Difference]: Without dead ends: 6619 [2022-11-16 12:42:49,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:42:49,352 INFO L413 NwaCegarLoop]: 916 mSDtfsCounter, 4844 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 3715 mSolverCounterSat, 3042 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5020 SdHoareTripleChecker+Valid, 2923 SdHoareTripleChecker+Invalid, 6757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3042 IncrementalHoareTripleChecker+Valid, 3715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:42:49,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5020 Valid, 2923 Invalid, 6757 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3042 Valid, 3715 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-11-16 12:42:49,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6619 states. [2022-11-16 12:42:49,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6619 to 5167. [2022-11-16 12:42:49,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 3599 states have (on average 1.3317588218949707) internal successors, (4793), 3763 states have internal predecessors, (4793), 1219 states have call successors, (1219), 326 states have call predecessors, (1219), 348 states have return successors, (1479), 1185 states have call predecessors, (1479), 1218 states have call successors, (1479) [2022-11-16 12:42:49,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 7491 transitions. [2022-11-16 12:42:49,804 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 7491 transitions. Word has length 100 [2022-11-16 12:42:49,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:42:49,804 INFO L495 AbstractCegarLoop]: Abstraction has 5167 states and 7491 transitions. [2022-11-16 12:42:49,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 12:42:49,805 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 7491 transitions. [2022-11-16 12:42:49,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-16 12:42:49,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:42:49,814 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 12:42:49,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:42:49,814 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:42:49,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:42:49,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1676914319, now seen corresponding path program 1 times [2022-11-16 12:42:49,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:42:49,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910550158] [2022-11-16 12:42:49,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:42:49,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:42:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:50,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:42:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:50,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:42:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:50,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:42:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:50,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:42:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:50,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:42:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:50,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:42:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:50,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:42:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:50,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:42:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:50,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:42:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:50,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:42:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:50,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:42:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:50,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 12:42:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:50,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:42:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:50,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:42:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:50,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:42:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:42:50,266 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-16 12:42:50,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:42:50,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910550158] [2022-11-16 12:42:50,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910550158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:42:50,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:42:50,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:42:50,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40512639] [2022-11-16 12:42:50,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:42:50,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:42:50,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:42:50,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:42:50,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:42:50,271 INFO L87 Difference]: Start difference. First operand 5167 states and 7491 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 12:42:52,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:43:01,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:43:01,482 INFO L93 Difference]: Finished difference Result 17753 states and 26714 transitions. [2022-11-16 12:43:01,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:43:01,482 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 118 [2022-11-16 12:43:01,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:43:01,559 INFO L225 Difference]: With dead ends: 17753 [2022-11-16 12:43:01,559 INFO L226 Difference]: Without dead ends: 12599 [2022-11-16 12:43:01,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:43:01,582 INFO L413 NwaCegarLoop]: 1074 mSDtfsCounter, 3366 mSDsluCounter, 2741 mSDsCounter, 0 mSdLazyCounter, 5152 mSolverCounterSat, 2298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3522 SdHoareTripleChecker+Valid, 3815 SdHoareTripleChecker+Invalid, 7450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2298 IncrementalHoareTripleChecker+Valid, 5152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:43:01,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3522 Valid, 3815 Invalid, 7450 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2298 Valid, 5152 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2022-11-16 12:43:01,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12599 states. [2022-11-16 12:43:02,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12599 to 10137. [2022-11-16 12:43:02,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10137 states, 7057 states have (on average 1.3270511548816777) internal successors, (9365), 7383 states have internal predecessors, (9365), 2378 states have call successors, (2378), 636 states have call predecessors, (2378), 701 states have return successors, (3125), 2314 states have call predecessors, (3125), 2377 states have call successors, (3125) [2022-11-16 12:43:02,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10137 states to 10137 states and 14868 transitions. [2022-11-16 12:43:02,487 INFO L78 Accepts]: Start accepts. Automaton has 10137 states and 14868 transitions. Word has length 118 [2022-11-16 12:43:02,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:43:02,488 INFO L495 AbstractCegarLoop]: Abstraction has 10137 states and 14868 transitions. [2022-11-16 12:43:02,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 12:43:02,490 INFO L276 IsEmpty]: Start isEmpty. Operand 10137 states and 14868 transitions. [2022-11-16 12:43:02,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-16 12:43:02,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:43:02,496 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:43:02,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:43:02,497 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:43:02,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:43:02,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1001659551, now seen corresponding path program 1 times [2022-11-16 12:43:02,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:43:02,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356172598] [2022-11-16 12:43:02,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:43:02,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:43:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:43:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:43:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:43:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:43:02,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:43:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:43:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:43:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:43:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:43:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:43:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 12:43:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 12:43:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-16 12:43:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 12:43:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:43:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-16 12:43:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:43:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-16 12:43:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-16 12:43:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:02,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-16 12:43:02,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:03,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-16 12:43:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:03,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-16 12:43:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:03,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-16 12:43:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:03,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-16 12:43:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:03,027 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-16 12:43:03,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:43:03,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356172598] [2022-11-16 12:43:03,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356172598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:43:03,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:43:03,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:43:03,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131327916] [2022-11-16 12:43:03,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:43:03,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:43:03,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:43:03,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:43:03,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:43:03,029 INFO L87 Difference]: Start difference. First operand 10137 states and 14868 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-16 12:43:12,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:43:12,343 INFO L93 Difference]: Finished difference Result 31530 states and 47544 transitions. [2022-11-16 12:43:12,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:43:12,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 190 [2022-11-16 12:43:12,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:43:12,467 INFO L225 Difference]: With dead ends: 31530 [2022-11-16 12:43:12,467 INFO L226 Difference]: Without dead ends: 21406 [2022-11-16 12:43:12,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:43:12,511 INFO L413 NwaCegarLoop]: 1213 mSDtfsCounter, 2701 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 4397 mSolverCounterSat, 1945 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2860 SdHoareTripleChecker+Valid, 3650 SdHoareTripleChecker+Invalid, 6342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1945 IncrementalHoareTripleChecker+Valid, 4397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:43:12,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2860 Valid, 3650 Invalid, 6342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1945 Valid, 4397 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-11-16 12:43:12,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21406 states. [2022-11-16 12:43:13,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21406 to 17298. [2022-11-16 12:43:13,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17298 states, 11905 states have (on average 1.3228895422091558) internal successors, (15749), 12505 states have internal predecessors, (15749), 4165 states have call successors, (4165), 1108 states have call predecessors, (4165), 1227 states have return successors, (5532), 4048 states have call predecessors, (5532), 4164 states have call successors, (5532) [2022-11-16 12:43:13,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17298 states to 17298 states and 25446 transitions. [2022-11-16 12:43:13,876 INFO L78 Accepts]: Start accepts. Automaton has 17298 states and 25446 transitions. Word has length 190 [2022-11-16 12:43:13,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:43:13,878 INFO L495 AbstractCegarLoop]: Abstraction has 17298 states and 25446 transitions. [2022-11-16 12:43:13,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-16 12:43:13,879 INFO L276 IsEmpty]: Start isEmpty. Operand 17298 states and 25446 transitions. [2022-11-16 12:43:13,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-16 12:43:13,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:43:13,888 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:43:13,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:43:13,888 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:43:13,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:43:13,889 INFO L85 PathProgramCache]: Analyzing trace with hash 2011640889, now seen corresponding path program 1 times [2022-11-16 12:43:13,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:43:13,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641020144] [2022-11-16 12:43:13,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:43:13,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:43:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:43:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:43:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:43:14,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:43:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:43:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:43:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:43:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:43:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:43:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:43:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:43:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:43:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:43:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-16 12:43:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-16 12:43:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-16 12:43:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 12:43:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-16 12:43:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:43:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:43:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-16 12:43:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:43:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-16 12:43:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-16 12:43:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-16 12:43:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-16 12:43:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-11-16 12:43:14,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:14,491 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-11-16 12:43:14,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:43:14,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641020144] [2022-11-16 12:43:14,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641020144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:43:14,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:43:14,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:43:14,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916054766] [2022-11-16 12:43:14,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:43:14,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:43:14,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:43:14,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:43:14,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:43:14,494 INFO L87 Difference]: Start difference. First operand 17298 states and 25446 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-16 12:43:26,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:43:26,506 INFO L93 Difference]: Finished difference Result 48308 states and 72773 transitions. [2022-11-16 12:43:26,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:43:26,507 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 218 [2022-11-16 12:43:26,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:43:26,677 INFO L225 Difference]: With dead ends: 48308 [2022-11-16 12:43:26,677 INFO L226 Difference]: Without dead ends: 31034 [2022-11-16 12:43:26,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:43:26,743 INFO L413 NwaCegarLoop]: 1272 mSDtfsCounter, 3074 mSDsluCounter, 3052 mSDsCounter, 0 mSdLazyCounter, 5168 mSolverCounterSat, 2034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3248 SdHoareTripleChecker+Valid, 4324 SdHoareTripleChecker+Invalid, 7202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2034 IncrementalHoareTripleChecker+Valid, 5168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:43:26,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3248 Valid, 4324 Invalid, 7202 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2034 Valid, 5168 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2022-11-16 12:43:26,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31034 states. [2022-11-16 12:43:28,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31034 to 25098. [2022-11-16 12:43:28,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25098 states, 17266 states have (on average 1.321383064983204) internal successors, (22815), 18140 states have internal predecessors, (22815), 6040 states have call successors, (6040), 1618 states have call predecessors, (6040), 1791 states have return successors, (8027), 5870 states have call predecessors, (8027), 6039 states have call successors, (8027) [2022-11-16 12:43:29,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25098 states to 25098 states and 36882 transitions. [2022-11-16 12:43:29,112 INFO L78 Accepts]: Start accepts. Automaton has 25098 states and 36882 transitions. Word has length 218 [2022-11-16 12:43:29,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:43:29,113 INFO L495 AbstractCegarLoop]: Abstraction has 25098 states and 36882 transitions. [2022-11-16 12:43:29,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-16 12:43:29,113 INFO L276 IsEmpty]: Start isEmpty. Operand 25098 states and 36882 transitions. [2022-11-16 12:43:29,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-11-16 12:43:29,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:43:29,123 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 12:43:29,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:43:29,123 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:43:29,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:43:29,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1819655725, now seen corresponding path program 1 times [2022-11-16 12:43:29,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:43:29,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538463132] [2022-11-16 12:43:29,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:43:29,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:43:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:43:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:43:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:43:29,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:43:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:43:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:43:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:43:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:43:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:43:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:43:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:43:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:43:29,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:43:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:43:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:43:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:43:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 12:43:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-16 12:43:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-16 12:43:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-16 12:43:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:43:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:43:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-16 12:43:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-16 12:43:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-16 12:43:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-11-16 12:43:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-11-16 12:43:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:29,913 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-11-16 12:43:29,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:43:29,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538463132] [2022-11-16 12:43:29,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538463132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:43:29,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:43:29,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 12:43:29,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956940057] [2022-11-16 12:43:29,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:43:29,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:43:29,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:43:29,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:43:29,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:43:29,916 INFO L87 Difference]: Start difference. First operand 25098 states and 36882 transitions. Second operand has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 4 states have internal predecessors, (121), 3 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-16 12:43:41,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:43:41,870 INFO L93 Difference]: Finished difference Result 68707 states and 108609 transitions. [2022-11-16 12:43:41,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:43:41,871 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 4 states have internal predecessors, (121), 3 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 227 [2022-11-16 12:43:41,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:43:42,138 INFO L225 Difference]: With dead ends: 68707 [2022-11-16 12:43:42,139 INFO L226 Difference]: Without dead ends: 43633 [2022-11-16 12:43:42,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:43:42,249 INFO L413 NwaCegarLoop]: 963 mSDtfsCounter, 4545 mSDsluCounter, 2961 mSDsCounter, 0 mSdLazyCounter, 5406 mSolverCounterSat, 3244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4717 SdHoareTripleChecker+Valid, 3924 SdHoareTripleChecker+Invalid, 8650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3244 IncrementalHoareTripleChecker+Valid, 5406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:43:42,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4717 Valid, 3924 Invalid, 8650 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3244 Valid, 5406 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-11-16 12:43:42,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43633 states. [2022-11-16 12:43:45,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43633 to 28406. [2022-11-16 12:43:45,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28406 states, 19506 states have (on average 1.3170819235107147) internal successors, (25691), 20479 states have internal predecessors, (25691), 6904 states have call successors, (6904), 1618 states have call predecessors, (6904), 1995 states have return successors, (10274), 6896 states have call predecessors, (10274), 6903 states have call successors, (10274) [2022-11-16 12:43:45,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28406 states to 28406 states and 42869 transitions. [2022-11-16 12:43:45,471 INFO L78 Accepts]: Start accepts. Automaton has 28406 states and 42869 transitions. Word has length 227 [2022-11-16 12:43:45,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:43:45,472 INFO L495 AbstractCegarLoop]: Abstraction has 28406 states and 42869 transitions. [2022-11-16 12:43:45,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 4 states have internal predecessors, (121), 3 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-16 12:43:45,473 INFO L276 IsEmpty]: Start isEmpty. Operand 28406 states and 42869 transitions. [2022-11-16 12:43:45,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-11-16 12:43:45,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:43:45,485 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:43:45,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:43:45,486 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:43:45,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:43:45,486 INFO L85 PathProgramCache]: Analyzing trace with hash 2103202819, now seen corresponding path program 1 times [2022-11-16 12:43:45,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:43:45,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122525067] [2022-11-16 12:43:45,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:43:45,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:43:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:43:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:43:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:43:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:43:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:43:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:43:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:43:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:43:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:43:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:43:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:43:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:43:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:43:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:43:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:43:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:43:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-16 12:43:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-16 12:43:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-16 12:43:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-16 12:43:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-16 12:43:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 12:43:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-16 12:43:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 12:43:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-16 12:43:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-16 12:43:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-16 12:43:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-11-16 12:43:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-11-16 12:43:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-11-16 12:43:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:43:46,345 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-16 12:43:46,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:43:46,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122525067] [2022-11-16 12:43:46,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122525067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:43:46,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:43:46,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:43:46,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099791811] [2022-11-16 12:43:46,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:43:46,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:43:46,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:43:46,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:43:46,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:43:46,349 INFO L87 Difference]: Start difference. First operand 28406 states and 42869 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-16 12:43:48,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:44:02,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:44:02,878 INFO L93 Difference]: Finished difference Result 74085 states and 113487 transitions. [2022-11-16 12:44:02,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:44:02,879 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 250 [2022-11-16 12:44:02,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:44:03,068 INFO L225 Difference]: With dead ends: 74085 [2022-11-16 12:44:03,068 INFO L226 Difference]: Without dead ends: 45703 [2022-11-16 12:44:03,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:44:03,183 INFO L413 NwaCegarLoop]: 1421 mSDtfsCounter, 3171 mSDsluCounter, 4061 mSDsCounter, 0 mSdLazyCounter, 6402 mSolverCounterSat, 2206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3302 SdHoareTripleChecker+Valid, 5482 SdHoareTripleChecker+Invalid, 8608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2206 IncrementalHoareTripleChecker+Valid, 6402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:44:03,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3302 Valid, 5482 Invalid, 8608 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2206 Valid, 6402 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2022-11-16 12:44:03,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45703 states. [2022-11-16 12:44:06,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45703 to 28426. [2022-11-16 12:44:06,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28426 states, 19526 states have (on average 1.3167571443203934) internal successors, (25711), 20499 states have internal predecessors, (25711), 6904 states have call successors, (6904), 1618 states have call predecessors, (6904), 1995 states have return successors, (10274), 6896 states have call predecessors, (10274), 6903 states have call successors, (10274) [2022-11-16 12:44:06,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28426 states to 28426 states and 42889 transitions. [2022-11-16 12:44:06,363 INFO L78 Accepts]: Start accepts. Automaton has 28426 states and 42889 transitions. Word has length 250 [2022-11-16 12:44:06,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:44:06,364 INFO L495 AbstractCegarLoop]: Abstraction has 28426 states and 42889 transitions. [2022-11-16 12:44:06,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-16 12:44:06,364 INFO L276 IsEmpty]: Start isEmpty. Operand 28426 states and 42889 transitions. [2022-11-16 12:44:06,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-11-16 12:44:06,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:06,375 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 12:44:06,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:44:06,376 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:06,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:06,376 INFO L85 PathProgramCache]: Analyzing trace with hash -2031073839, now seen corresponding path program 1 times [2022-11-16 12:44:06,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:06,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518187143] [2022-11-16 12:44:06,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:06,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:44:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:44:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:06,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:44:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:44:07,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:44:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:44:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:44:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-16 12:44:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-16 12:44:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-16 12:44:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-16 12:44:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-16 12:44:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-16 12:44:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:44:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-16 12:44:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-11-16 12:44:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-11-16 12:44:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-11-16 12:44:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:07,193 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-16 12:44:07,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:07,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518187143] [2022-11-16 12:44:07,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518187143] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:44:07,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143796127] [2022-11-16 12:44:07,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:07,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:44:07,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:44:07,200 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:44:07,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:44:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:08,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:44:08,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:44:08,831 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-16 12:44:08,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:44:08,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143796127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:44:08,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:44:08,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 11 [2022-11-16 12:44:08,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676859400] [2022-11-16 12:44:08,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:44:08,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:44:08,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:08,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:44:08,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:44:08,833 INFO L87 Difference]: Start difference. First operand 28426 states and 42889 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-16 12:44:11,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:44:11,844 INFO L93 Difference]: Finished difference Result 58153 states and 87889 transitions. [2022-11-16 12:44:11,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:44:11,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 250 [2022-11-16 12:44:11,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:44:11,937 INFO L225 Difference]: With dead ends: 58153 [2022-11-16 12:44:11,937 INFO L226 Difference]: Without dead ends: 29751 [2022-11-16 12:44:12,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:44:12,008 INFO L413 NwaCegarLoop]: 1699 mSDtfsCounter, 203 mSDsluCounter, 4848 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 6547 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:44:12,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 6547 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:44:12,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29751 states. [2022-11-16 12:44:15,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29751 to 28466. [2022-11-16 12:44:15,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28466 states, 19556 states have (on average 1.3162712211086112) internal successors, (25741), 20529 states have internal predecessors, (25741), 6904 states have call successors, (6904), 1618 states have call predecessors, (6904), 2005 states have return successors, (10294), 6906 states have call predecessors, (10294), 6903 states have call successors, (10294) [2022-11-16 12:44:15,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28466 states to 28466 states and 42939 transitions. [2022-11-16 12:44:15,149 INFO L78 Accepts]: Start accepts. Automaton has 28466 states and 42939 transitions. Word has length 250 [2022-11-16 12:44:15,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:44:15,149 INFO L495 AbstractCegarLoop]: Abstraction has 28466 states and 42939 transitions. [2022-11-16 12:44:15,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-16 12:44:15,149 INFO L276 IsEmpty]: Start isEmpty. Operand 28466 states and 42939 transitions. [2022-11-16 12:44:15,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-11-16 12:44:15,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:15,158 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 12:44:15,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 12:44:15,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc14d08-70bf-401b-a098-4e2af32abad2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:44:15,370 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:15,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:15,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1411651484, now seen corresponding path program 1 times [2022-11-16 12:44:15,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:15,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367706531] [2022-11-16 12:44:15,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:15,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:44:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:44:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:15,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:44:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:16,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:44:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:16,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:16,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:16,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:16,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:44:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:16,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:44:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:16,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:44:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:16,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:44:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:16,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:44:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:16,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-16 12:44:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:16,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-16 12:44:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:16,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-16 12:44:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:16,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:16,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-16 12:44:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:16,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-16 12:44:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:16,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-16 12:44:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:16,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-16 12:44:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:16,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-16 12:44:16,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:16,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-11-16 12:44:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:16,184 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-11-16 12:44:16,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:16,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367706531] [2022-11-16 12:44:16,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367706531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:44:16,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:44:16,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:44:16,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134537839] [2022-11-16 12:44:16,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:44:16,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:44:16,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:16,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:44:16,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:44:16,187 INFO L87 Difference]: Start difference. First operand 28466 states and 42939 transitions. Second operand has 11 states, 10 states have (on average 15.0) internal successors, (150), 4 states have internal predecessors, (150), 3 states have call successors, (27), 8 states have call predecessors, (27), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-16 12:44:30,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:44:30,119 INFO L93 Difference]: Finished difference Result 66310 states and 103302 transitions. [2022-11-16 12:44:30,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:44:30,120 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 15.0) internal successors, (150), 4 states have internal predecessors, (150), 3 states have call successors, (27), 8 states have call predecessors, (27), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 257 [2022-11-16 12:44:30,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:44:30,243 INFO L225 Difference]: With dead ends: 66310 [2022-11-16 12:44:30,243 INFO L226 Difference]: Without dead ends: 37868 [2022-11-16 12:44:30,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:44:30,318 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 3525 mSDsluCounter, 3903 mSDsCounter, 0 mSdLazyCounter, 7548 mSolverCounterSat, 2481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3682 SdHoareTripleChecker+Valid, 4738 SdHoareTripleChecker+Invalid, 10029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2481 IncrementalHoareTripleChecker+Valid, 7548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:44:30,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3682 Valid, 4738 Invalid, 10029 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2481 Valid, 7548 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-11-16 12:44:30,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37868 states. [2022-11-16 12:44:33,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37868 to 28506. [2022-11-16 12:44:34,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28506 states, 19586 states have (on average 1.315786786480139) internal successors, (25771), 20559 states have internal predecessors, (25771), 6904 states have call successors, (6904), 1618 states have call predecessors, (6904), 2015 states have return successors, (10314), 6916 states have call predecessors, (10314), 6903 states have call successors, (10314) [2022-11-16 12:44:34,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28506 states to 28506 states and 42989 transitions. [2022-11-16 12:44:34,181 INFO L78 Accepts]: Start accepts. Automaton has 28506 states and 42989 transitions. Word has length 257 [2022-11-16 12:44:34,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:44:34,182 INFO L495 AbstractCegarLoop]: Abstraction has 28506 states and 42989 transitions. [2022-11-16 12:44:34,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 15.0) internal successors, (150), 4 states have internal predecessors, (150), 3 states have call successors, (27), 8 states have call predecessors, (27), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-16 12:44:34,182 INFO L276 IsEmpty]: Start isEmpty. Operand 28506 states and 42989 transitions. [2022-11-16 12:44:34,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-11-16 12:44:34,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:34,190 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 12:44:34,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:44:34,191 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:34,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:34,191 INFO L85 PathProgramCache]: Analyzing trace with hash 518579365, now seen corresponding path program 1 times [2022-11-16 12:44:34,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:34,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72739381] [2022-11-16 12:44:34,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:34,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:44:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:44:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:44:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:44:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:44:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:44:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:44:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:44:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:44:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-16 12:44:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-16 12:44:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-16 12:44:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:34,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-16 12:44:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-16 12:44:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-16 12:44:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-16 12:44:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-16 12:44:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-11-16 12:44:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:34,949 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-11-16 12:44:34,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:34,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72739381] [2022-11-16 12:44:34,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72739381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:44:34,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:44:34,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:44:34,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359918734] [2022-11-16 12:44:34,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:44:34,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:44:34,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:34,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:44:34,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:44:34,953 INFO L87 Difference]: Start difference. First operand 28506 states and 42989 transitions. Second operand has 9 states, 8 states have (on average 18.75) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (27), 8 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-16 12:44:46,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:44:46,959 INFO L93 Difference]: Finished difference Result 65065 states and 101116 transitions. [2022-11-16 12:44:46,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:44:46,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.75) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (27), 8 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 257 [2022-11-16 12:44:46,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:44:47,109 INFO L225 Difference]: With dead ends: 65065 [2022-11-16 12:44:47,109 INFO L226 Difference]: Without dead ends: 36583 [2022-11-16 12:44:47,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:44:47,204 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 2673 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 5086 mSolverCounterSat, 1948 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2768 SdHoareTripleChecker+Valid, 2756 SdHoareTripleChecker+Invalid, 7034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1948 IncrementalHoareTripleChecker+Valid, 5086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:44:47,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2768 Valid, 2756 Invalid, 7034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1948 Valid, 5086 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-11-16 12:44:47,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36583 states. [2022-11-16 12:44:50,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36583 to 28526. [2022-11-16 12:44:50,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28526 states, 19606 states have (on average 1.3154646536774457) internal successors, (25791), 20579 states have internal predecessors, (25791), 6904 states have call successors, (6904), 1618 states have call predecessors, (6904), 2015 states have return successors, (10314), 6916 states have call predecessors, (10314), 6903 states have call successors, (10314) [2022-11-16 12:44:50,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28526 states to 28526 states and 43009 transitions. [2022-11-16 12:44:50,627 INFO L78 Accepts]: Start accepts. Automaton has 28526 states and 43009 transitions. Word has length 257 [2022-11-16 12:44:50,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:44:50,627 INFO L495 AbstractCegarLoop]: Abstraction has 28526 states and 43009 transitions. [2022-11-16 12:44:50,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.75) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (27), 8 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-16 12:44:50,628 INFO L276 IsEmpty]: Start isEmpty. Operand 28526 states and 43009 transitions. [2022-11-16 12:44:50,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-11-16 12:44:50,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:44:50,638 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-11-16 12:44:50,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:44:50,639 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:44:50,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:44:50,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1777021955, now seen corresponding path program 1 times [2022-11-16 12:44:50,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:44:50,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883172998] [2022-11-16 12:44:50,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:44:50,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:44:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:44:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:44:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:44:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:44:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:44:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:44:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:44:51,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:44:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:44:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:44:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:44:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-16 12:44:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-16 12:44:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-16 12:44:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:44:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-16 12:44:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-16 12:44:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-16 12:44:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-11-16 12:44:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-11-16 12:44:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-11-16 12:44:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:44:51,549 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-16 12:44:51,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:44:51,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883172998] [2022-11-16 12:44:51,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883172998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:44:51,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:44:51,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 12:44:51,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843076362] [2022-11-16 12:44:51,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:44:51,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:44:51,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:44:51,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:44:51,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:44:51,552 INFO L87 Difference]: Start difference. First operand 28526 states and 43009 transitions. Second operand has 10 states, 9 states have (on average 16.22222222222222) internal successors, (146), 4 states have internal predecessors, (146), 3 states have call successors, (25), 8 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-16 12:44:53,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:45:04,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:45:04,432 INFO L93 Difference]: Finished difference Result 65205 states and 101276 transitions. [2022-11-16 12:45:04,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 12:45:04,433 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 16.22222222222222) internal successors, (146), 4 states have internal predecessors, (146), 3 states have call successors, (25), 8 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 252 [2022-11-16 12:45:04,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:45:04,604 INFO L225 Difference]: With dead ends: 65205 [2022-11-16 12:45:04,604 INFO L226 Difference]: Without dead ends: 36703 [2022-11-16 12:45:04,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:45:04,707 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 3348 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 5983 mSolverCounterSat, 2448 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3442 SdHoareTripleChecker+Valid, 2785 SdHoareTripleChecker+Invalid, 8431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2448 IncrementalHoareTripleChecker+Valid, 5983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:45:04,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3442 Valid, 2785 Invalid, 8431 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2448 Valid, 5983 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-11-16 12:45:04,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36703 states. [2022-11-16 12:45:07,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36703 to 28566. [2022-11-16 12:45:07,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28566 states, 19646 states have (on average 1.3148223556958158) internal successors, (25831), 20619 states have internal predecessors, (25831), 6904 states have call successors, (6904), 1618 states have call predecessors, (6904), 2015 states have return successors, (10314), 6916 states have call predecessors, (10314), 6903 states have call successors, (10314) [2022-11-16 12:45:07,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28566 states to 28566 states and 43049 transitions. [2022-11-16 12:45:07,831 INFO L78 Accepts]: Start accepts. Automaton has 28566 states and 43049 transitions. Word has length 252 [2022-11-16 12:45:07,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:45:07,832 INFO L495 AbstractCegarLoop]: Abstraction has 28566 states and 43049 transitions. [2022-11-16 12:45:07,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 16.22222222222222) internal successors, (146), 4 states have internal predecessors, (146), 3 states have call successors, (25), 8 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-16 12:45:07,832 INFO L276 IsEmpty]: Start isEmpty. Operand 28566 states and 43049 transitions. [2022-11-16 12:45:07,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-11-16 12:45:07,840 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:45:07,840 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 12:45:07,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:45:07,840 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:45:07,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:45:07,841 INFO L85 PathProgramCache]: Analyzing trace with hash 608967841, now seen corresponding path program 1 times [2022-11-16 12:45:07,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:45:07,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925011677] [2022-11-16 12:45:07,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:45:07,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:45:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:45:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:45:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:45:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:45:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:45:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:45:08,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:45:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:45:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:45:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:45:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:45:08,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:45:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:45:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:45:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:45:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:45:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:45:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:45:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-16 12:45:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-16 12:45:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-16 12:45:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:45:08,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-16 12:45:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-16 12:45:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-16 12:45:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-16 12:45:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-16 12:45:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-11-16 12:45:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:08,593 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-11-16 12:45:08,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:45:08,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925011677] [2022-11-16 12:45:08,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925011677] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:45:08,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:45:08,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 12:45:08,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594329741] [2022-11-16 12:45:08,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:45:08,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:45:08,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:45:08,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:45:08,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:45:08,597 INFO L87 Difference]: Start difference. First operand 28566 states and 43049 transitions. Second operand has 10 states, 9 states have (on average 16.666666666666668) internal successors, (150), 4 states have internal predecessors, (150), 3 states have call successors, (27), 8 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-16 12:45:22,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:45:22,022 INFO L93 Difference]: Finished difference Result 65445 states and 101516 transitions. [2022-11-16 12:45:22,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 12:45:22,023 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 16.666666666666668) internal successors, (150), 4 states have internal predecessors, (150), 3 states have call successors, (27), 8 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 257 [2022-11-16 12:45:22,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:45:22,303 INFO L225 Difference]: With dead ends: 65445 [2022-11-16 12:45:22,303 INFO L226 Difference]: Without dead ends: 36903 [2022-11-16 12:45:22,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:45:22,392 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 2618 mSDsluCounter, 2909 mSDsCounter, 0 mSdLazyCounter, 6955 mSolverCounterSat, 1919 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2712 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 8874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1919 IncrementalHoareTripleChecker+Valid, 6955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:45:22,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2712 Valid, 3453 Invalid, 8874 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1919 Valid, 6955 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2022-11-16 12:45:22,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36903 states. [2022-11-16 12:45:25,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36903 to 28606. [2022-11-16 12:45:25,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28606 states, 19686 states have (on average 1.314182667885807) internal successors, (25871), 20659 states have internal predecessors, (25871), 6904 states have call successors, (6904), 1618 states have call predecessors, (6904), 2015 states have return successors, (10314), 6916 states have call predecessors, (10314), 6903 states have call successors, (10314) [2022-11-16 12:45:26,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28606 states to 28606 states and 43089 transitions. [2022-11-16 12:45:26,131 INFO L78 Accepts]: Start accepts. Automaton has 28606 states and 43089 transitions. Word has length 257 [2022-11-16 12:45:26,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:45:26,131 INFO L495 AbstractCegarLoop]: Abstraction has 28606 states and 43089 transitions. [2022-11-16 12:45:26,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 16.666666666666668) internal successors, (150), 4 states have internal predecessors, (150), 3 states have call successors, (27), 8 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-16 12:45:26,132 INFO L276 IsEmpty]: Start isEmpty. Operand 28606 states and 43089 transitions. [2022-11-16 12:45:26,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-11-16 12:45:26,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:45:26,138 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-11-16 12:45:26,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:45:26,139 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:45:26,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:45:26,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1376843137, now seen corresponding path program 1 times [2022-11-16 12:45:26,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:45:26,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013890241] [2022-11-16 12:45:26,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:45:26,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:45:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:45:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:45:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:45:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:45:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:45:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:45:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:45:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:45:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:45:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:45:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:45:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:45:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:45:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:45:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:45:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:45:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:45:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:26,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:45:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:27,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-16 12:45:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:27,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-16 12:45:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:27,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-16 12:45:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:27,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:45:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:27,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-16 12:45:27,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:27,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-16 12:45:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:27,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-16 12:45:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:27,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-11-16 12:45:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:27,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-11-16 12:45:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:27,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-11-16 12:45:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:45:27,091 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-16 12:45:27,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:45:27,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013890241] [2022-11-16 12:45:27,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013890241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:45:27,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:45:27,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 12:45:27,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847321045] [2022-11-16 12:45:27,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:45:27,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:45:27,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:45:27,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:45:27,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:45:27,096 INFO L87 Difference]: Start difference. First operand 28606 states and 43089 transitions. Second operand has 10 states, 9 states have (on average 16.22222222222222) internal successors, (146), 4 states have internal predecessors, (146), 3 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22)