./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a9a20f3f691c8614da828fa262b8d39a0b290d1ce7d7bab1e11653a91cb5fcdd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:44:57,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:44:57,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:44:57,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:44:57,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:44:57,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:44:57,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:44:57,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:44:57,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:44:57,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:44:57,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:44:57,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:44:57,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:44:57,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:44:57,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:44:57,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:44:57,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:44:57,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:44:57,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:44:57,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:44:57,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:44:57,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:44:57,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:44:57,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:44:57,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:44:57,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:44:57,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:44:57,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:44:57,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:44:57,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:44:57,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:44:57,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:44:57,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:44:57,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:44:57,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:44:57,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:44:57,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:44:57,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:44:57,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:44:57,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:44:57,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:44:57,909 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 18:44:57,939 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:44:57,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:44:57,940 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:44:57,941 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:44:57,942 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:44:57,942 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:44:57,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:44:57,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:44:57,944 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:44:57,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:44:57,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:44:57,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:44:57,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:44:57,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:44:57,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:44:57,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:44:57,947 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:44:57,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:44:57,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:44:57,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:44:57,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:44:57,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:44:57,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:44:57,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:44:57,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:44:57,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:44:57,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:44:57,951 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:44:57,951 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:44:57,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:44:57,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:44:57,952 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_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9a20f3f691c8614da828fa262b8d39a0b290d1ce7d7bab1e11653a91cb5fcdd [2021-11-13 18:44:58,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:44:58,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:44:58,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:44:58,287 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:44:58,288 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:44:58,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i [2021-11-13 18:44:58,374 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y/data/4cc19b9a0/91d95e011ea546b48a69e1a3581bbbc4/FLAGe1231f77a [2021-11-13 18:44:59,319 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:44:59,322 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i [2021-11-13 18:44:59,385 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y/data/4cc19b9a0/91d95e011ea546b48a69e1a3581bbbc4/FLAGe1231f77a [2021-11-13 18:44:59,772 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y/data/4cc19b9a0/91d95e011ea546b48a69e1a3581bbbc4 [2021-11-13 18:44:59,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:44:59,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:44:59,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:44:59,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:44:59,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:44:59,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:44:59" (1/1) ... [2021-11-13 18:44:59,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf2b52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:59, skipping insertion in model container [2021-11-13 18:44:59,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:44:59" (1/1) ... [2021-11-13 18:44:59,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:44:59,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:45:00,951 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i[161908,161921] [2021-11-13 18:45:01,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:45:01,618 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:45:01,777 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i[161908,161921] [2021-11-13 18:45:01,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:45:01,958 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:45:01,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:01 WrapperNode [2021-11-13 18:45:01,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:45:01,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:45:01,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:45:01,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:45:01,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:01" (1/1) ... [2021-11-13 18:45:02,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:01" (1/1) ... [2021-11-13 18:45:02,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:45:02,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:45:02,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:45:02,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:45:02,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:01" (1/1) ... [2021-11-13 18:45:02,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:01" (1/1) ... [2021-11-13 18:45:02,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:01" (1/1) ... [2021-11-13 18:45:02,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:01" (1/1) ... [2021-11-13 18:45:02,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:01" (1/1) ... [2021-11-13 18:45:02,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:01" (1/1) ... [2021-11-13 18:45:02,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:01" (1/1) ... [2021-11-13 18:45:02,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:45:02,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:45:02,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:45:02,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:45:02,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:01" (1/1) ... [2021-11-13 18:45:02,402 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:45:02,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:45:02,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:45:02,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:45:02,488 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2021-11-13 18:45:02,489 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2021-11-13 18:45:02,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 18:45:02,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 18:45:02,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 18:45:02,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 18:45:02,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 18:45:02,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:45:02,490 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-11-13 18:45:02,491 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-11-13 18:45:02,491 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2021-11-13 18:45:02,491 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2021-11-13 18:45:02,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 18:45:02,492 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 18:45:02,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 18:45:02,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 18:45:02,492 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-11-13 18:45:02,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-11-13 18:45:02,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:45:02,493 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_suspend [2021-11-13 18:45:02,493 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_suspend [2021-11-13 18:45:02,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-13 18:45:02,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-13 18:45:02,494 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_resume [2021-11-13 18:45:02,494 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_resume [2021-11-13 18:45:02,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 18:45:02,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 18:45:02,495 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-13 18:45:02,495 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-13 18:45:02,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 18:45:02,496 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 18:45:02,496 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 18:45:02,496 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 18:45:02,496 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_tx_fixup [2021-11-13 18:45:02,497 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_tx_fixup [2021-11-13 18:45:02,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:45:02,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2021-11-13 18:45:02,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2021-11-13 18:45:02,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_4 [2021-11-13 18:45:02,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_4 [2021-11-13 18:45:02,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 18:45:02,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 18:45:02,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:45:02,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:45:02,499 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:45:02,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:45:02,499 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_bind [2021-11-13 18:45:02,500 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_bind [2021-11-13 18:45:02,500 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_manage_power [2021-11-13 18:45:02,500 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_manage_power [2021-11-13 18:45:02,500 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-13 18:45:02,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-13 18:45:02,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 18:45:02,501 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-13 18:45:02,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:45:02,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 18:45:02,502 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-13 18:45:02,502 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-13 18:45:02,502 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_rx_fixup [2021-11-13 18:45:02,503 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_rx_fixup [2021-11-13 18:45:02,503 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-13 18:45:02,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-13 18:45:02,503 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_unbind [2021-11-13 18:45:02,504 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_unbind [2021-11-13 18:45:02,504 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_unbind [2021-11-13 18:45:02,504 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_unbind [2021-11-13 18:45:02,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:45:02,505 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-11-13 18:45:02,505 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-11-13 18:45:02,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 18:45:02,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-13 18:45:02,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-13 18:45:02,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:45:02,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:45:02,506 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hdr [2021-11-13 18:45:02,506 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hdr [2021-11-13 18:45:02,507 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-13 18:45:02,507 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-13 18:45:04,299 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 18:45:04,739 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2021-11-13 18:45:05,504 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:45:05,507 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:45:05,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:45:05 BoogieIcfgContainer [2021-11-13 18:45:05,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:45:05,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:45:05,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:45:05,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:45:05,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:44:59" (1/3) ... [2021-11-13 18:45:05,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e89982e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:45:05, skipping insertion in model container [2021-11-13 18:45:05,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:01" (2/3) ... [2021-11-13 18:45:05,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e89982e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:45:05, skipping insertion in model container [2021-11-13 18:45:05,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:45:05" (3/3) ... [2021-11-13 18:45:05,527 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i [2021-11-13 18:45:05,534 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:45:05,534 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:45:05,615 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:45:05,624 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:45:05,624 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:45:05,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 523 states, 398 states have (on average 1.407035175879397) internal successors, (560), 412 states have internal predecessors, (560), 94 states have call successors, (94), 31 states have call predecessors, (94), 29 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2021-11-13 18:45:05,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-13 18:45:05,706 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:45:05,707 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-13 18:45:05,709 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:45:05,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:05,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1589467643, now seen corresponding path program 1 times [2021-11-13 18:45:05,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:45:05,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423564534] [2021-11-13 18:45:05,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:05,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:45:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:06,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:45:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:06,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 18:45:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:06,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:45:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:06,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 18:45:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:06,611 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 18:45:06,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:45:06,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423564534] [2021-11-13 18:45:06,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423564534] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:45:06,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:45:06,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:45:06,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230638761] [2021-11-13 18:45:06,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:45:06,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:45:06,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:45:06,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:45:06,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:45:06,700 INFO L87 Difference]: Start difference. First operand has 523 states, 398 states have (on average 1.407035175879397) internal successors, (560), 412 states have internal predecessors, (560), 94 states have call successors, (94), 31 states have call predecessors, (94), 29 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-13 18:45:09,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:45:09,571 INFO L93 Difference]: Finished difference Result 1672 states and 2474 transitions. [2021-11-13 18:45:09,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:45:09,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 40 [2021-11-13 18:45:09,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:45:09,607 INFO L225 Difference]: With dead ends: 1672 [2021-11-13 18:45:09,608 INFO L226 Difference]: Without dead ends: 1132 [2021-11-13 18:45:09,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:45:09,625 INFO L933 BasicCegarLoop]: 753 mSDtfsCounter, 1145 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2137.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 2236 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 56.67ms SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2481.78ms IncrementalHoareTripleChecker+Time [2021-11-13 18:45:09,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1201 Valid, 2236 Invalid, 1060 Unknown, 0 Unchecked, 56.67ms Time], IncrementalHoareTripleChecker [455 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 2481.78ms Time] [2021-11-13 18:45:09,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2021-11-13 18:45:09,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 969. [2021-11-13 18:45:09,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 753 states have (on average 1.3957503320053122) internal successors, (1051), 760 states have internal predecessors, (1051), 159 states have call successors, (159), 57 states have call predecessors, (159), 56 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2021-11-13 18:45:09,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1363 transitions. [2021-11-13 18:45:09,830 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1363 transitions. Word has length 40 [2021-11-13 18:45:09,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:45:09,831 INFO L470 AbstractCegarLoop]: Abstraction has 969 states and 1363 transitions. [2021-11-13 18:45:09,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-13 18:45:09,831 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1363 transitions. [2021-11-13 18:45:09,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-13 18:45:09,839 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:45:09,839 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-13 18:45:09,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:45:09,840 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:45:09,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:09,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1949626109, now seen corresponding path program 1 times [2021-11-13 18:45:09,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:45:09,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683172859] [2021-11-13 18:45:09,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:09,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:45:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:10,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:45:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:10,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 18:45:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:10,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:45:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:10,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 18:45:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:10,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-13 18:45:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:10,246 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-13 18:45:10,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:45:10,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683172859] [2021-11-13 18:45:10,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683172859] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:45:10,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:45:10,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:45:10,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183449527] [2021-11-13 18:45:10,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:45:10,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:45:10,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:45:10,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:45:10,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:45:10,251 INFO L87 Difference]: Start difference. First operand 969 states and 1363 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-13 18:45:11,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:45:11,843 INFO L93 Difference]: Finished difference Result 1131 states and 1631 transitions. [2021-11-13 18:45:11,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:45:11,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 50 [2021-11-13 18:45:11,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:45:11,857 INFO L225 Difference]: With dead ends: 1131 [2021-11-13 18:45:11,857 INFO L226 Difference]: Without dead ends: 1128 [2021-11-13 18:45:11,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:45:11,860 INFO L933 BasicCegarLoop]: 653 mSDtfsCounter, 948 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1280.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.67ms SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1451.63ms IncrementalHoareTripleChecker+Time [2021-11-13 18:45:11,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1000 Valid, 1470 Invalid, 613 Unknown, 0 Unchecked, 16.67ms Time], IncrementalHoareTripleChecker [261 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 1451.63ms Time] [2021-11-13 18:45:11,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2021-11-13 18:45:11,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 968. [2021-11-13 18:45:11,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 753 states have (on average 1.3944223107569722) internal successors, (1050), 759 states have internal predecessors, (1050), 158 states have call successors, (158), 57 states have call predecessors, (158), 56 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2021-11-13 18:45:11,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1361 transitions. [2021-11-13 18:45:11,943 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1361 transitions. Word has length 50 [2021-11-13 18:45:11,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:45:11,944 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1361 transitions. [2021-11-13 18:45:11,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-13 18:45:11,945 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1361 transitions. [2021-11-13 18:45:11,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-13 18:45:11,949 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:45:11,949 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-13 18:45:11,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:45:11,950 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:45:11,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:11,951 INFO L85 PathProgramCache]: Analyzing trace with hash 308647439, now seen corresponding path program 1 times [2021-11-13 18:45:11,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:45:11,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341848571] [2021-11-13 18:45:11,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:11,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:45:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:12,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:45:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:12,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 18:45:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:12,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:45:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:12,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 18:45:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:12,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-13 18:45:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:12,255 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-13 18:45:12,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:45:12,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341848571] [2021-11-13 18:45:12,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341848571] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:45:12,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:45:12,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:45:12,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199439039] [2021-11-13 18:45:12,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:45:12,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:45:12,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:45:12,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:45:12,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:45:12,258 INFO L87 Difference]: Start difference. First operand 968 states and 1361 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-13 18:45:13,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:45:13,727 INFO L93 Difference]: Finished difference Result 1130 states and 1629 transitions. [2021-11-13 18:45:13,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:45:13,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 51 [2021-11-13 18:45:13,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:45:13,736 INFO L225 Difference]: With dead ends: 1130 [2021-11-13 18:45:13,737 INFO L226 Difference]: Without dead ends: 1127 [2021-11-13 18:45:13,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:45:13,740 INFO L933 BasicCegarLoop]: 651 mSDtfsCounter, 945 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1135.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.83ms SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1337.76ms IncrementalHoareTripleChecker+Time [2021-11-13 18:45:13,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [997 Valid, 1466 Invalid, 611 Unknown, 0 Unchecked, 14.83ms Time], IncrementalHoareTripleChecker [259 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 1337.76ms Time] [2021-11-13 18:45:13,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2021-11-13 18:45:13,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 967. [2021-11-13 18:45:13,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 753 states have (on average 1.3930942895086322) internal successors, (1049), 758 states have internal predecessors, (1049), 157 states have call successors, (157), 57 states have call predecessors, (157), 56 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2021-11-13 18:45:13,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1359 transitions. [2021-11-13 18:45:13,816 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1359 transitions. Word has length 51 [2021-11-13 18:45:13,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:45:13,819 INFO L470 AbstractCegarLoop]: Abstraction has 967 states and 1359 transitions. [2021-11-13 18:45:13,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-13 18:45:13,825 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1359 transitions. [2021-11-13 18:45:13,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-13 18:45:13,831 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:45:13,831 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-13 18:45:13,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:45:13,832 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:45:13,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:13,833 INFO L85 PathProgramCache]: Analyzing trace with hash 977921088, now seen corresponding path program 1 times [2021-11-13 18:45:13,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:45:13,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144187706] [2021-11-13 18:45:13,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:13,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:45:13,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:14,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:45:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:14,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 18:45:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:14,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:45:14,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:14,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 18:45:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:14,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-13 18:45:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:14,085 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-13 18:45:14,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:45:14,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144187706] [2021-11-13 18:45:14,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144187706] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:45:14,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:45:14,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:45:14,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488871125] [2021-11-13 18:45:14,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:45:14,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:45:14,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:45:14,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:45:14,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:45:14,089 INFO L87 Difference]: Start difference. First operand 967 states and 1359 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-13 18:45:15,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:45:15,653 INFO L93 Difference]: Finished difference Result 1129 states and 1627 transitions. [2021-11-13 18:45:15,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:45:15,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52 [2021-11-13 18:45:15,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:45:15,665 INFO L225 Difference]: With dead ends: 1129 [2021-11-13 18:45:15,666 INFO L226 Difference]: Without dead ends: 1126 [2021-11-13 18:45:15,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:45:15,677 INFO L933 BasicCegarLoop]: 649 mSDtfsCounter, 942 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1262.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.16ms SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1429.37ms IncrementalHoareTripleChecker+Time [2021-11-13 18:45:15,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [994 Valid, 1462 Invalid, 609 Unknown, 0 Unchecked, 15.16ms Time], IncrementalHoareTripleChecker [257 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 1429.37ms Time] [2021-11-13 18:45:15,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2021-11-13 18:45:15,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 966. [2021-11-13 18:45:15,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 753 states have (on average 1.3917662682602923) internal successors, (1048), 757 states have internal predecessors, (1048), 156 states have call successors, (156), 57 states have call predecessors, (156), 56 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2021-11-13 18:45:15,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1357 transitions. [2021-11-13 18:45:15,770 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1357 transitions. Word has length 52 [2021-11-13 18:45:15,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:45:15,771 INFO L470 AbstractCegarLoop]: Abstraction has 966 states and 1357 transitions. [2021-11-13 18:45:15,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-13 18:45:15,772 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1357 transitions. [2021-11-13 18:45:15,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-13 18:45:15,776 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:45:15,776 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-13 18:45:15,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:45:15,777 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:45:15,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:15,777 INFO L85 PathProgramCache]: Analyzing trace with hash 250572594, now seen corresponding path program 1 times [2021-11-13 18:45:15,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:45:15,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076538804] [2021-11-13 18:45:15,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:15,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:45:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:15,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:45:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:15,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 18:45:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:15,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:45:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:16,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 18:45:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:16,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-13 18:45:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:16,032 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-13 18:45:16,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:45:16,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076538804] [2021-11-13 18:45:16,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076538804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:45:16,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:45:16,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:45:16,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763088103] [2021-11-13 18:45:16,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:45:16,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:45:16,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:45:16,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:45:16,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:45:16,036 INFO L87 Difference]: Start difference. First operand 966 states and 1357 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-13 18:45:18,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:45:18,574 INFO L93 Difference]: Finished difference Result 3187 states and 4578 transitions. [2021-11-13 18:45:18,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:45:18,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 53 [2021-11-13 18:45:18,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:45:18,597 INFO L225 Difference]: With dead ends: 3187 [2021-11-13 18:45:18,598 INFO L226 Difference]: Without dead ends: 2232 [2021-11-13 18:45:18,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:45:18,606 INFO L933 BasicCegarLoop]: 741 mSDtfsCounter, 1173 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1932.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 2211 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.94ms SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2207.86ms IncrementalHoareTripleChecker+Time [2021-11-13 18:45:18,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1234 Valid, 2211 Invalid, 1035 Unknown, 0 Unchecked, 28.94ms Time], IncrementalHoareTripleChecker [433 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 2207.86ms Time] [2021-11-13 18:45:18,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2021-11-13 18:45:18,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 1908. [2021-11-13 18:45:18,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1908 states, 1490 states have (on average 1.393959731543624) internal successors, (2077), 1496 states have internal predecessors, (2077), 305 states have call successors, (305), 113 states have call predecessors, (305), 112 states have return successors, (310), 302 states have call predecessors, (310), 302 states have call successors, (310) [2021-11-13 18:45:18,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1908 states to 1908 states and 2692 transitions. [2021-11-13 18:45:18,753 INFO L78 Accepts]: Start accepts. Automaton has 1908 states and 2692 transitions. Word has length 53 [2021-11-13 18:45:18,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:45:18,754 INFO L470 AbstractCegarLoop]: Abstraction has 1908 states and 2692 transitions. [2021-11-13 18:45:18,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-13 18:45:18,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1908 states and 2692 transitions. [2021-11-13 18:45:18,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-13 18:45:18,758 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:45:18,759 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-13 18:45:18,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:45:18,759 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:45:18,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:18,760 INFO L85 PathProgramCache]: Analyzing trace with hash -822389373, now seen corresponding path program 1 times [2021-11-13 18:45:18,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:45:18,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662833292] [2021-11-13 18:45:18,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:18,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:45:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:18,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:45:18,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:18,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 18:45:18,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:18,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:45:18,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:18,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 18:45:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:18,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-13 18:45:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:18,971 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-13 18:45:18,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:45:18,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662833292] [2021-11-13 18:45:18,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662833292] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:45:18,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:45:18,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:45:18,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38162593] [2021-11-13 18:45:18,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:45:18,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:45:18,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:45:18,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:45:18,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:45:18,978 INFO L87 Difference]: Start difference. First operand 1908 states and 2692 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-13 18:45:20,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:45:20,860 INFO L93 Difference]: Finished difference Result 2230 states and 3223 transitions. [2021-11-13 18:45:20,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:45:20,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 54 [2021-11-13 18:45:20,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:45:20,907 INFO L225 Difference]: With dead ends: 2230 [2021-11-13 18:45:20,907 INFO L226 Difference]: Without dead ends: 2218 [2021-11-13 18:45:20,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:45:20,912 INFO L933 BasicCegarLoop]: 648 mSDtfsCounter, 938 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1420.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.57ms SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1643.58ms IncrementalHoareTripleChecker+Time [2021-11-13 18:45:20,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [990 Valid, 1461 Invalid, 604 Unknown, 0 Unchecked, 17.57ms Time], IncrementalHoareTripleChecker [255 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 1643.58ms Time] [2021-11-13 18:45:20,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2218 states. [2021-11-13 18:45:21,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2218 to 1898. [2021-11-13 18:45:21,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1898 states, 1481 states have (on average 1.3936529372045916) internal successors, (2064), 1486 states have internal predecessors, (2064), 304 states have call successors, (304), 113 states have call predecessors, (304), 112 states have return successors, (310), 302 states have call predecessors, (310), 302 states have call successors, (310) [2021-11-13 18:45:21,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2678 transitions. [2021-11-13 18:45:21,089 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2678 transitions. Word has length 54 [2021-11-13 18:45:21,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:45:21,089 INFO L470 AbstractCegarLoop]: Abstraction has 1898 states and 2678 transitions. [2021-11-13 18:45:21,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-13 18:45:21,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2678 transitions. [2021-11-13 18:45:21,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-13 18:45:21,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:45:21,094 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-13 18:45:21,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:45:21,095 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:45:21,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:21,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1986046453, now seen corresponding path program 1 times [2021-11-13 18:45:21,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:45:21,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445993712] [2021-11-13 18:45:21,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:21,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:45:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:21,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:45:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:21,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 18:45:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:21,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:45:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:21,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 18:45:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:21,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-13 18:45:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:21,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-13 18:45:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:21,297 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 18:45:21,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:45:21,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445993712] [2021-11-13 18:45:21,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445993712] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:45:21,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:45:21,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:45:21,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860017046] [2021-11-13 18:45:21,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:45:21,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:45:21,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:45:21,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:45:21,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:45:21,300 INFO L87 Difference]: Start difference. First operand 1898 states and 2678 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-13 18:45:23,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:45:23,675 INFO L93 Difference]: Finished difference Result 6142 states and 8755 transitions. [2021-11-13 18:45:23,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:45:23,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2021-11-13 18:45:23,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:45:23,719 INFO L225 Difference]: With dead ends: 6142 [2021-11-13 18:45:23,719 INFO L226 Difference]: Without dead ends: 4255 [2021-11-13 18:45:23,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:45:23,735 INFO L933 BasicCegarLoop]: 705 mSDtfsCounter, 1124 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1740.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 2111 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.39ms SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2012.33ms IncrementalHoareTripleChecker+Time [2021-11-13 18:45:23,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1181 Valid, 2111 Invalid, 1015 Unknown, 0 Unchecked, 23.39ms Time], IncrementalHoareTripleChecker [418 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 2012.33ms Time] [2021-11-13 18:45:23,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4255 states. [2021-11-13 18:45:24,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4255 to 3604. [2021-11-13 18:45:24,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3604 states, 2825 states have (on average 1.390796460176991) internal successors, (3929), 2834 states have internal predecessors, (3929), 555 states have call successors, (555), 224 states have call predecessors, (555), 223 states have return successors, (565), 553 states have call predecessors, (565), 553 states have call successors, (565) [2021-11-13 18:45:24,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3604 states to 3604 states and 5049 transitions. [2021-11-13 18:45:24,125 INFO L78 Accepts]: Start accepts. Automaton has 3604 states and 5049 transitions. Word has length 66 [2021-11-13 18:45:24,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:45:24,126 INFO L470 AbstractCegarLoop]: Abstraction has 3604 states and 5049 transitions. [2021-11-13 18:45:24,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-13 18:45:24,126 INFO L276 IsEmpty]: Start isEmpty. Operand 3604 states and 5049 transitions. [2021-11-13 18:45:24,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-13 18:45:24,129 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:45:24,129 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-13 18:45:24,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:45:24,129 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:45:24,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:24,130 INFO L85 PathProgramCache]: Analyzing trace with hash -181003579, now seen corresponding path program 1 times [2021-11-13 18:45:24,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:45:24,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264389491] [2021-11-13 18:45:24,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:24,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:45:24,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:24,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:45:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:24,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 18:45:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:24,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:45:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:24,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 18:45:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:24,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 18:45:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:24,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 18:45:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:24,314 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 18:45:24,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:45:24,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264389491] [2021-11-13 18:45:24,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264389491] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:45:24,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:45:24,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:45:24,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555720638] [2021-11-13 18:45:24,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:45:24,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:45:24,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:45:24,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:45:24,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:45:24,322 INFO L87 Difference]: Start difference. First operand 3604 states and 5049 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-13 18:45:27,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:45:27,224 INFO L93 Difference]: Finished difference Result 10431 states and 14766 transitions. [2021-11-13 18:45:27,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:45:27,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65 [2021-11-13 18:45:27,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:45:27,291 INFO L225 Difference]: With dead ends: 10431 [2021-11-13 18:45:27,292 INFO L226 Difference]: Without dead ends: 6848 [2021-11-13 18:45:27,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:45:27,312 INFO L933 BasicCegarLoop]: 1049 mSDtfsCounter, 962 mSDsluCounter, 1853 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2038.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 2902 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.23ms SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2372.98ms IncrementalHoareTripleChecker+Time [2021-11-13 18:45:27,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1022 Valid, 2902 Invalid, 1083 Unknown, 0 Unchecked, 23.23ms Time], IncrementalHoareTripleChecker [320 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 2372.98ms Time] [2021-11-13 18:45:27,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6848 states. [2021-11-13 18:45:27,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6848 to 5818. [2021-11-13 18:45:27,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5818 states, 4560 states have (on average 1.3888157894736841) internal successors, (6333), 4575 states have internal predecessors, (6333), 882 states have call successors, (882), 376 states have call predecessors, (882), 375 states have return successors, (896), 878 states have call predecessors, (896), 880 states have call successors, (896) [2021-11-13 18:45:27,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5818 states to 5818 states and 8111 transitions. [2021-11-13 18:45:27,784 INFO L78 Accepts]: Start accepts. Automaton has 5818 states and 8111 transitions. Word has length 65 [2021-11-13 18:45:27,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:45:27,786 INFO L470 AbstractCegarLoop]: Abstraction has 5818 states and 8111 transitions. [2021-11-13 18:45:27,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-13 18:45:27,786 INFO L276 IsEmpty]: Start isEmpty. Operand 5818 states and 8111 transitions. [2021-11-13 18:45:27,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-13 18:45:27,802 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:45:27,803 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 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] [2021-11-13 18:45:27,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 18:45:27,803 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:45:27,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:27,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1535676253, now seen corresponding path program 1 times [2021-11-13 18:45:27,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:45:27,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839386928] [2021-11-13 18:45:27,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:27,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:45:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:28,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:45:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:28,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 18:45:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:28,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:45:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:28,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 18:45:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:28,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-13 18:45:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:28,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-13 18:45:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:28,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 18:45:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:28,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-13 18:45:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:28,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 18:45:28,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:28,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-13 18:45:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:28,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-13 18:45:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:28,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-13 18:45:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:28,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-13 18:45:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:28,193 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-11-13 18:45:28,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:45:28,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839386928] [2021-11-13 18:45:28,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839386928] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:45:28,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:45:28,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:45:28,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385838757] [2021-11-13 18:45:28,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:45:28,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:45:28,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:45:28,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:45:28,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:45:28,197 INFO L87 Difference]: Start difference. First operand 5818 states and 8111 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-13 18:45:31,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:45:31,962 INFO L93 Difference]: Finished difference Result 10230 states and 14590 transitions. [2021-11-13 18:45:31,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:45:31,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 122 [2021-11-13 18:45:31,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:45:32,043 INFO L225 Difference]: With dead ends: 10230 [2021-11-13 18:45:32,044 INFO L226 Difference]: Without dead ends: 10227 [2021-11-13 18:45:32,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-13 18:45:32,051 INFO L933 BasicCegarLoop]: 1327 mSDtfsCounter, 2079 mSDsluCounter, 2629 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2756.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 3956 SdHoareTripleChecker+Invalid, 2083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.98ms SdHoareTripleChecker+Time, 686 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3215.82ms IncrementalHoareTripleChecker+Time [2021-11-13 18:45:32,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2185 Valid, 3956 Invalid, 2083 Unknown, 0 Unchecked, 26.98ms Time], IncrementalHoareTripleChecker [686 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 3215.82ms Time] [2021-11-13 18:45:32,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10227 states. [2021-11-13 18:45:32,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10227 to 8696. [2021-11-13 18:45:32,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8696 states, 6817 states have (on average 1.3902009681678158) internal successors, (9477), 6839 states have internal predecessors, (9477), 1318 states have call successors, (1318), 561 states have call predecessors, (1318), 560 states have return successors, (1364), 1313 states have call predecessors, (1364), 1316 states have call successors, (1364) [2021-11-13 18:45:32,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8696 states to 8696 states and 12159 transitions. [2021-11-13 18:45:32,771 INFO L78 Accepts]: Start accepts. Automaton has 8696 states and 12159 transitions. Word has length 122 [2021-11-13 18:45:32,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:45:32,772 INFO L470 AbstractCegarLoop]: Abstraction has 8696 states and 12159 transitions. [2021-11-13 18:45:32,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-13 18:45:32,773 INFO L276 IsEmpty]: Start isEmpty. Operand 8696 states and 12159 transitions. [2021-11-13 18:45:32,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-13 18:45:32,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:45:32,784 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 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] [2021-11-13 18:45:32,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 18:45:32,784 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:45:32,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:32,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1504761742, now seen corresponding path program 1 times [2021-11-13 18:45:32,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:45:32,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837271461] [2021-11-13 18:45:32,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:32,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:45:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:32,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:45:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:32,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 18:45:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:32,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:45:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:32,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 18:45:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:33,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-13 18:45:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:33,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-13 18:45:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:33,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 18:45:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:33,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-13 18:45:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:33,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 18:45:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:33,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-13 18:45:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:33,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-13 18:45:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:33,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 18:45:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:33,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-13 18:45:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:33,111 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-11-13 18:45:33,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:45:33,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837271461] [2021-11-13 18:45:33,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837271461] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:45:33,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:45:33,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:45:33,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363294801] [2021-11-13 18:45:33,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:45:33,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:45:33,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:45:33,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:45:33,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:45:33,115 INFO L87 Difference]: Start difference. First operand 8696 states and 12159 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-13 18:45:35,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:45:35,775 INFO L93 Difference]: Finished difference Result 24686 states and 34978 transitions. [2021-11-13 18:45:35,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:45:35,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 123 [2021-11-13 18:45:35,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:45:35,879 INFO L225 Difference]: With dead ends: 24686 [2021-11-13 18:45:35,879 INFO L226 Difference]: Without dead ends: 16027 [2021-11-13 18:45:35,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:45:35,926 INFO L933 BasicCegarLoop]: 860 mSDtfsCounter, 1082 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1625.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 2458 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.79ms SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1916.28ms IncrementalHoareTripleChecker+Time [2021-11-13 18:45:35,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 2458 Invalid, 1046 Unknown, 0 Unchecked, 16.79ms Time], IncrementalHoareTripleChecker [384 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 1916.28ms Time] [2021-11-13 18:45:35,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16027 states. [2021-11-13 18:45:36,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16027 to 13615. [2021-11-13 18:45:36,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13615 states, 10743 states have (on average 1.385832635204319) internal successors, (14888), 10774 states have internal predecessors, (14888), 1996 states have call successors, (1996), 876 states have call predecessors, (1996), 875 states have return successors, (2054), 1988 states have call predecessors, (2054), 1994 states have call successors, (2054) [2021-11-13 18:45:37,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13615 states to 13615 states and 18938 transitions. [2021-11-13 18:45:37,011 INFO L78 Accepts]: Start accepts. Automaton has 13615 states and 18938 transitions. Word has length 123 [2021-11-13 18:45:37,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:45:37,012 INFO L470 AbstractCegarLoop]: Abstraction has 13615 states and 18938 transitions. [2021-11-13 18:45:37,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-13 18:45:37,012 INFO L276 IsEmpty]: Start isEmpty. Operand 13615 states and 18938 transitions. [2021-11-13 18:45:37,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-13 18:45:37,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:45:37,021 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 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] [2021-11-13 18:45:37,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 18:45:37,022 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:45:37,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:37,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1949944417, now seen corresponding path program 1 times [2021-11-13 18:45:37,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:45:37,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460751859] [2021-11-13 18:45:37,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:37,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:45:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:37,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:45:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:37,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 18:45:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:37,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:45:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:37,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 18:45:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:37,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-13 18:45:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:37,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-13 18:45:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:37,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 18:45:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:37,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-13 18:45:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:37,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 18:45:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:37,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-13 18:45:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:37,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-13 18:45:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:37,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-13 18:45:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:37,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-13 18:45:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:37,402 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-11-13 18:45:37,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:45:37,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460751859] [2021-11-13 18:45:37,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460751859] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:45:37,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:45:37,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 18:45:37,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207266890] [2021-11-13 18:45:37,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:45:37,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:45:37,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:45:37,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:45:37,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:45:37,406 INFO L87 Difference]: Start difference. First operand 13615 states and 18938 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-13 18:45:40,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:45:40,599 INFO L93 Difference]: Finished difference Result 20835 states and 29445 transitions. [2021-11-13 18:45:40,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:45:40,600 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 122 [2021-11-13 18:45:40,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:45:40,757 INFO L225 Difference]: With dead ends: 20835 [2021-11-13 18:45:40,758 INFO L226 Difference]: Without dead ends: 16267 [2021-11-13 18:45:40,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-11-13 18:45:40,781 INFO L933 BasicCegarLoop]: 655 mSDtfsCounter, 272 mSDsluCounter, 3838 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1915.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 4493 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.32ms SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2179.97ms IncrementalHoareTripleChecker+Time [2021-11-13 18:45:40,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 4493 Invalid, 1131 Unknown, 0 Unchecked, 19.32ms Time], IncrementalHoareTripleChecker [186 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 2179.97ms Time] [2021-11-13 18:45:40,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16267 states. [2021-11-13 18:45:41,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16267 to 13754. [2021-11-13 18:45:41,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13754 states, 10862 states have (on average 1.380684956729884) internal successors, (14997), 10913 states have internal predecessors, (14997), 1996 states have call successors, (1996), 876 states have call predecessors, (1996), 895 states have return successors, (2094), 1988 states have call predecessors, (2094), 1994 states have call successors, (2094) [2021-11-13 18:45:41,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13754 states to 13754 states and 19087 transitions. [2021-11-13 18:45:41,785 INFO L78 Accepts]: Start accepts. Automaton has 13754 states and 19087 transitions. Word has length 122 [2021-11-13 18:45:41,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:45:41,786 INFO L470 AbstractCegarLoop]: Abstraction has 13754 states and 19087 transitions. [2021-11-13 18:45:41,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-13 18:45:41,786 INFO L276 IsEmpty]: Start isEmpty. Operand 13754 states and 19087 transitions. [2021-11-13 18:45:41,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-13 18:45:41,805 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:45:41,806 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:45:41,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-13 18:45:41,806 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:45:41,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:41,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1749310071, now seen corresponding path program 1 times [2021-11-13 18:45:41,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:45:41,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361679730] [2021-11-13 18:45:41,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:41,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:45:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:41,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:45:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:41,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 18:45:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:41,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:45:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:41,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 18:45:41,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:41,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-13 18:45:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:41,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-13 18:45:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:41,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 18:45:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:41,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-13 18:45:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:41,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 18:45:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:41,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-13 18:45:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:42,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-13 18:45:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:42,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-13 18:45:42,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:45:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:42,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:45:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:42,070 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-11-13 18:45:42,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:45:42,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361679730] [2021-11-13 18:45:42,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361679730] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:45:42,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:45:42,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:45:42,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017146797] [2021-11-13 18:45:42,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:45:42,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:45:42,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:45:42,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:45:42,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:45:42,073 INFO L87 Difference]: Start difference. First operand 13754 states and 19087 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 18:45:45,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:45:45,280 INFO L93 Difference]: Finished difference Result 38432 states and 54071 transitions. [2021-11-13 18:45:45,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:45:45,281 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 141 [2021-11-13 18:45:45,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:45:45,438 INFO L225 Difference]: With dead ends: 38432 [2021-11-13 18:45:45,438 INFO L226 Difference]: Without dead ends: 24715 [2021-11-13 18:45:45,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:45:45,509 INFO L933 BasicCegarLoop]: 843 mSDtfsCounter, 1197 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1742.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 2391 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.72ms SdHoareTripleChecker+Time, 531 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2008.94ms IncrementalHoareTripleChecker+Time [2021-11-13 18:45:45,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1257 Valid, 2391 Invalid, 1205 Unknown, 0 Unchecked, 16.72ms Time], IncrementalHoareTripleChecker [531 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 2008.94ms Time] [2021-11-13 18:45:45,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24715 states. [2021-11-13 18:45:46,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24715 to 21044. [2021-11-13 18:45:46,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21044 states, 16733 states have (on average 1.3772784318412716) internal successors, (23046), 16802 states have internal predecessors, (23046), 2944 states have call successors, (2944), 1335 states have call predecessors, (2944), 1366 states have return successors, (3062), 2936 states have call predecessors, (3062), 2942 states have call successors, (3062) [2021-11-13 18:45:47,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21044 states to 21044 states and 29052 transitions. [2021-11-13 18:45:47,076 INFO L78 Accepts]: Start accepts. Automaton has 21044 states and 29052 transitions. Word has length 141 [2021-11-13 18:45:47,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:45:47,076 INFO L470 AbstractCegarLoop]: Abstraction has 21044 states and 29052 transitions. [2021-11-13 18:45:47,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 18:45:47,077 INFO L276 IsEmpty]: Start isEmpty. Operand 21044 states and 29052 transitions. [2021-11-13 18:45:47,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-13 18:45:47,092 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:45:47,092 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:45:47,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-13 18:45:47,093 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:45:47,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:47,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1038448743, now seen corresponding path program 1 times [2021-11-13 18:45:47,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:45:47,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450431057] [2021-11-13 18:45:47,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:47,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:45:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:47,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:45:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:47,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 18:45:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:47,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:45:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:47,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 18:45:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:47,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-13 18:45:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:47,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-13 18:45:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:47,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 18:45:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:47,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-13 18:45:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:47,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 18:45:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:47,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-13 18:45:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:47,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-13 18:45:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:47,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-13 18:45:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:47,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:45:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:47,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:45:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:47,413 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-11-13 18:45:47,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:45:47,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450431057] [2021-11-13 18:45:47,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450431057] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:45:47,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:45:47,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 18:45:47,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798033050] [2021-11-13 18:45:47,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:45:47,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:45:47,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:45:47,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:45:47,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:45:47,416 INFO L87 Difference]: Start difference. First operand 21044 states and 29052 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2021-11-13 18:45:50,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:45:50,029 INFO L93 Difference]: Finished difference Result 30746 states and 42907 transitions. [2021-11-13 18:45:50,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:45:50,030 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2021-11-13 18:45:50,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:45:50,109 INFO L225 Difference]: With dead ends: 30746 [2021-11-13 18:45:50,109 INFO L226 Difference]: Without dead ends: 16636 [2021-11-13 18:45:50,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-11-13 18:45:50,151 INFO L933 BasicCegarLoop]: 649 mSDtfsCounter, 309 mSDsluCounter, 3091 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1502.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 3740 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.13ms SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1716.30ms IncrementalHoareTripleChecker+Time [2021-11-13 18:45:50,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [326 Valid, 3740 Invalid, 1070 Unknown, 0 Unchecked, 16.13ms Time], IncrementalHoareTripleChecker [187 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 1716.30ms Time] [2021-11-13 18:45:50,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16636 states. [2021-11-13 18:45:51,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16636 to 14099. [2021-11-13 18:45:51,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14099 states, 11225 states have (on average 1.3730066815144766) internal successors, (15412), 11266 states have internal predecessors, (15412), 1966 states have call successors, (1966), 892 states have call predecessors, (1966), 907 states have return successors, (2012), 1960 states have call predecessors, (2012), 1964 states have call successors, (2012) [2021-11-13 18:45:51,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14099 states to 14099 states and 19390 transitions. [2021-11-13 18:45:51,203 INFO L78 Accepts]: Start accepts. Automaton has 14099 states and 19390 transitions. Word has length 140 [2021-11-13 18:45:51,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:45:51,204 INFO L470 AbstractCegarLoop]: Abstraction has 14099 states and 19390 transitions. [2021-11-13 18:45:51,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2021-11-13 18:45:51,204 INFO L276 IsEmpty]: Start isEmpty. Operand 14099 states and 19390 transitions. [2021-11-13 18:45:51,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-13 18:45:51,228 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:45:51,229 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:45:51,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-13 18:45:51,229 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:45:51,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:51,230 INFO L85 PathProgramCache]: Analyzing trace with hash 935962192, now seen corresponding path program 1 times [2021-11-13 18:45:51,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:45:51,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066445033] [2021-11-13 18:45:51,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:51,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:45:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:51,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:45:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:51,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 18:45:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:51,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:45:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:51,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 18:45:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:51,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-13 18:45:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:51,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-13 18:45:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:51,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 18:45:51,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:51,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-13 18:45:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:51,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 18:45:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:51,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-13 18:45:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:51,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-13 18:45:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:51,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-13 18:45:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:51,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:45:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:51,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:45:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:51,692 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2021-11-13 18:45:51,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:45:51,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066445033] [2021-11-13 18:45:51,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066445033] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:45:51,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521110188] [2021-11-13 18:45:51,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:51,693 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:45:51,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:45:51,701 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:45:51,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 18:45:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:52,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 1416 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 18:45:52,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:45:52,927 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-11-13 18:45:52,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:45:52,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521110188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:45:52,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:45:52,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2021-11-13 18:45:52,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447026197] [2021-11-13 18:45:52,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:45:52,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 18:45:52,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:45:52,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:45:52,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-13 18:45:52,931 INFO L87 Difference]: Start difference. First operand 14099 states and 19390 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-13 18:45:55,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:45:55,328 INFO L93 Difference]: Finished difference Result 14099 states and 19390 transitions. [2021-11-13 18:45:55,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:45:55,330 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 144 [2021-11-13 18:45:55,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:45:55,332 INFO L225 Difference]: With dead ends: 14099 [2021-11-13 18:45:55,332 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 18:45:55,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-11-13 18:45:55,365 INFO L933 BasicCegarLoop]: 619 mSDtfsCounter, 1279 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1245.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.47ms SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1454.01ms IncrementalHoareTripleChecker+Time [2021-11-13 18:45:55,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1307 Valid, 1197 Invalid, 1021 Unknown, 0 Unchecked, 12.47ms Time], IncrementalHoareTripleChecker [376 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 1454.01ms Time] [2021-11-13 18:45:55,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 18:45:55,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 18:45:55,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:45:55,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 18:45:55,369 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 144 [2021-11-13 18:45:55,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:45:55,370 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:45:55,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-13 18:45:55,370 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 18:45:55,370 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 18:45:55,373 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 18:45:55,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-13 18:45:55,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf72eb7-aa9a-4dc7-b832-d8d60d908fda/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:45:55,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 18:46:04,287 WARN L227 SmtUtils]: Spent 8.06s on a formula simplification. DAG size of input: 62 DAG size of output: 60 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:46:11,812 WARN L227 SmtUtils]: Spent 7.52s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:46:18,899 WARN L227 SmtUtils]: Spent 7.09s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:46:26,117 WARN L227 SmtUtils]: Spent 6.87s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:46:32,332 WARN L227 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:46:39,973 WARN L227 SmtUtils]: Spent 6.62s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:46:48,225 WARN L227 SmtUtils]: Spent 7.49s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:46:54,760 WARN L227 SmtUtils]: Spent 6.52s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:47:01,624 WARN L227 SmtUtils]: Spent 6.52s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:47:09,694 WARN L227 SmtUtils]: Spent 7.34s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:47:17,555 WARN L227 SmtUtils]: Spent 7.15s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:47:23,652 WARN L227 SmtUtils]: Spent 6.09s on a formula simplification. DAG size of input: 62 DAG size of output: 60 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:47:30,515 WARN L227 SmtUtils]: Spent 6.86s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:47:38,357 WARN L227 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:47:46,040 WARN L227 SmtUtils]: Spent 7.33s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:47:53,825 WARN L227 SmtUtils]: Spent 7.06s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:48:01,404 WARN L227 SmtUtils]: Spent 7.20s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:48:08,938 WARN L227 SmtUtils]: Spent 7.18s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:48:15,915 WARN L227 SmtUtils]: Spent 6.97s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:48:24,314 WARN L227 SmtUtils]: Spent 6.58s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:48:30,740 WARN L227 SmtUtils]: Spent 6.43s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:48:37,234 WARN L227 SmtUtils]: Spent 6.15s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:48:44,457 WARN L227 SmtUtils]: Spent 6.52s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:48:51,305 WARN L227 SmtUtils]: Spent 6.85s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:49:01,276 WARN L227 SmtUtils]: Spent 8.01s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:49:08,779 WARN L227 SmtUtils]: Spent 7.50s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:49:16,243 WARN L227 SmtUtils]: Spent 7.46s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:49:25,143 WARN L227 SmtUtils]: Spent 7.73s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:49:32,572 WARN L227 SmtUtils]: Spent 7.43s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:49:40,033 WARN L227 SmtUtils]: Spent 7.46s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:49:47,740 WARN L227 SmtUtils]: Spent 7.33s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:49:55,689 WARN L227 SmtUtils]: Spent 7.55s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:50:03,207 WARN L227 SmtUtils]: Spent 7.52s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:50:11,103 WARN L227 SmtUtils]: Spent 7.48s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:50:18,770 WARN L227 SmtUtils]: Spent 7.67s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:50:26,774 WARN L227 SmtUtils]: Spent 7.60s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:50:33,890 WARN L227 SmtUtils]: Spent 7.11s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:50:40,803 WARN L227 SmtUtils]: Spent 6.91s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:50:49,238 WARN L227 SmtUtils]: Spent 8.00s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:50:58,785 WARN L227 SmtUtils]: Spent 7.43s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:51:07,088 WARN L227 SmtUtils]: Spent 8.30s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:51:14,357 WARN L227 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 62 DAG size of output: 60 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:51:21,456 WARN L227 SmtUtils]: Spent 7.10s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:51:29,133 WARN L227 SmtUtils]: Spent 7.68s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:51:37,959 WARN L227 SmtUtils]: Spent 8.82s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:51:46,926 WARN L227 SmtUtils]: Spent 8.53s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:51:53,829 WARN L227 SmtUtils]: Spent 6.52s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:52:00,784 WARN L227 SmtUtils]: Spent 6.61s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:52:07,484 WARN L227 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:52:14,423 WARN L227 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:52:21,315 WARN L227 SmtUtils]: Spent 6.89s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:52:28,095 WARN L227 SmtUtils]: Spent 6.78s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:52:35,219 WARN L227 SmtUtils]: Spent 6.76s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:52:41,731 WARN L227 SmtUtils]: Spent 6.51s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:52:50,298 WARN L227 SmtUtils]: Spent 7.09s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:52:56,836 WARN L227 SmtUtils]: Spent 6.54s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:53:03,642 WARN L227 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:53:10,218 WARN L227 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:53:16,471 WARN L227 SmtUtils]: Spent 6.25s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:53:24,488 WARN L227 SmtUtils]: Spent 6.99s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:53:30,851 WARN L227 SmtUtils]: Spent 6.36s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:53:37,755 WARN L227 SmtUtils]: Spent 6.56s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:53:44,342 WARN L227 SmtUtils]: Spent 6.58s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:53:50,953 WARN L227 SmtUtils]: Spent 6.61s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:53:57,155 WARN L227 SmtUtils]: Spent 6.20s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:54:03,346 WARN L227 SmtUtils]: Spent 6.19s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:54:10,763 WARN L227 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:54:17,603 WARN L227 SmtUtils]: Spent 6.84s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:54:24,922 WARN L227 SmtUtils]: Spent 6.26s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:54:31,868 WARN L227 SmtUtils]: Spent 6.61s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:54:38,423 WARN L227 SmtUtils]: Spent 6.19s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:54:45,184 WARN L227 SmtUtils]: Spent 6.76s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:54:52,265 WARN L227 SmtUtils]: Spent 6.73s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:54:58,219 WARN L227 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 62 DAG size of output: 60 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:55:06,346 WARN L227 SmtUtils]: Spent 6.72s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:55:13,353 WARN L227 SmtUtils]: Spent 6.68s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:55:20,437 WARN L227 SmtUtils]: Spent 7.08s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:55:26,657 WARN L227 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 62 DAG size of output: 60 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:55:55,983 WARN L227 SmtUtils]: Spent 7.37s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:56:02,802 WARN L227 SmtUtils]: Spent 6.82s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:56:09,791 WARN L227 SmtUtils]: Spent 6.65s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:56:16,364 WARN L227 SmtUtils]: Spent 6.22s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:56:22,608 WARN L227 SmtUtils]: Spent 6.24s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:56:30,695 WARN L227 SmtUtils]: Spent 7.04s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:56:37,031 WARN L227 SmtUtils]: Spent 6.34s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:56:44,002 WARN L227 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:56:50,767 WARN L227 SmtUtils]: Spent 6.76s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:56:57,447 WARN L227 SmtUtils]: Spent 6.68s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:57:03,819 WARN L227 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:57:10,149 WARN L227 SmtUtils]: Spent 6.33s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:57:17,836 WARN L227 SmtUtils]: Spent 6.56s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:57:24,804 WARN L227 SmtUtils]: Spent 6.97s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:57:32,270 WARN L227 SmtUtils]: Spent 6.38s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:57:39,255 WARN L227 SmtUtils]: Spent 6.65s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:57:46,357 WARN L227 SmtUtils]: Spent 6.70s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:57:54,246 WARN L227 SmtUtils]: Spent 7.89s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:58:02,848 WARN L227 SmtUtils]: Spent 8.18s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:58:10,120 WARN L227 SmtUtils]: Spent 7.27s on a formula simplification. DAG size of input: 62 DAG size of output: 60 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:58:20,107 WARN L227 SmtUtils]: Spent 8.26s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:58:28,575 WARN L227 SmtUtils]: Spent 8.06s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:58:36,973 WARN L227 SmtUtils]: Spent 8.40s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:58:43,564 WARN L227 SmtUtils]: Spent 6.16s on a formula simplification. DAG size of input: 62 DAG size of output: 60 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:58:51,712 WARN L227 SmtUtils]: Spent 7.04s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 18:58:58,370 WARN L227 SmtUtils]: Spent 6.66s on a formula simplification. DAG size of input: 68 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)