./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.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_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/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_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/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_5dcdc331-419f-461f-a03a-cdf945bc27fc/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 992626749f2e8ca84a93ad6fc64a197d6c8e66b412d995c24cf1e1136a1f2393 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:43:20,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:43:20,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:43:20,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:43:20,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:43:20,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:43:20,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:43:20,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:43:20,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:43:20,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:43:20,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:43:20,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:43:20,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:43:20,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:43:20,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:43:20,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:43:20,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:43:20,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:43:20,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:43:20,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:43:20,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:43:20,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:43:20,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:43:20,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:43:20,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:43:20,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:43:20,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:43:20,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:43:20,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:43:20,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:43:20,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:43:20,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:43:20,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:43:20,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:43:20,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:43:20,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:43:20,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:43:20,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:43:20,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:43:20,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:43:20,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:43:20,861 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 17:43:20,919 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:43:20,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:43:20,921 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:43:20,921 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:43:20,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:43:20,924 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:43:20,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:43:20,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:43:20,926 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:43:20,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:43:20,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:43:20,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:43:20,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:43:20,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:43:20,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:43:20,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:43:20,929 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:43:20,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:43:20,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:43:20,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:43:20,931 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:43:20,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:43:20,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:43:20,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:43:20,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:43:20,932 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:43:20,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:43:20,933 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:43:20,933 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:43:20,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:43:20,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:43:20,936 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_5dcdc331-419f-461f-a03a-cdf945bc27fc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 992626749f2e8ca84a93ad6fc64a197d6c8e66b412d995c24cf1e1136a1f2393 [2021-11-13 17:43:21,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:43:21,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:43:21,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:43:21,363 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:43:21,365 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:43:21,366 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i [2021-11-13 17:43:21,481 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/data/2a1ac882e/734d256fa9464c958bf82c8e71f59ca1/FLAGc10ab1403 [2021-11-13 17:43:22,534 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:43:22,535 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i [2021-11-13 17:43:22,586 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/data/2a1ac882e/734d256fa9464c958bf82c8e71f59ca1/FLAGc10ab1403 [2021-11-13 17:43:22,915 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/data/2a1ac882e/734d256fa9464c958bf82c8e71f59ca1 [2021-11-13 17:43:22,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:43:22,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:43:22,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:43:22,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:43:22,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:43:22,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:43:22" (1/1) ... [2021-11-13 17:43:22,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38c2ce6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:22, skipping insertion in model container [2021-11-13 17:43:22,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:43:22" (1/1) ... [2021-11-13 17:43:22,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:43:23,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:43:24,055 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_5dcdc331-419f-461f-a03a-cdf945bc27fc/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i[154031,154044] [2021-11-13 17:43:24,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:43:24,443 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:43:24,641 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_5dcdc331-419f-461f-a03a-cdf945bc27fc/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i[154031,154044] [2021-11-13 17:43:24,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:43:24,789 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:43:24,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:24 WrapperNode [2021-11-13 17:43:24,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:43:24,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:43:24,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:43:24,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:43:24,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:24" (1/1) ... [2021-11-13 17:43:24,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:24" (1/1) ... [2021-11-13 17:43:25,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:43:25,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:43:25,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:43:25,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:43:25,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:24" (1/1) ... [2021-11-13 17:43:25,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:24" (1/1) ... [2021-11-13 17:43:25,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:24" (1/1) ... [2021-11-13 17:43:25,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:24" (1/1) ... [2021-11-13 17:43:25,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:24" (1/1) ... [2021-11-13 17:43:25,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:24" (1/1) ... [2021-11-13 17:43:25,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:24" (1/1) ... [2021-11-13 17:43:25,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:43:25,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:43:25,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:43:25,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:43:25,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:24" (1/1) ... [2021-11-13 17:43:25,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:43:25,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:43:25,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:43:25,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:43:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2021-11-13 17:43:25,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2021-11-13 17:43:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 17:43:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 17:43:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:43:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 17:43:25,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 17:43:25,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 17:43:25,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 17:43:25,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 17:43:25,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 17:43:25,259 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 17:43:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 17:43:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-11-13 17:43:25,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-11-13 17:43:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 17:43:25,260 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 17:43:25,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 17:43:25,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 17:43:25,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_14 [2021-11-13 17:43:25,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_14 [2021-11-13 17:43:25,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:43:25,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 17:43:25,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-11-13 17:43:25,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-11-13 17:43:25,262 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-13 17:43:25,262 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-13 17:43:25,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2021-11-13 17:43:25,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2021-11-13 17:43:25,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 17:43:25,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-13 17:43:25,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-13 17:43:25,263 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 17:43:25,263 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 17:43:25,263 INFO L130 BoogieDeclarations]: Found specification of procedure skb_mac_header [2021-11-13 17:43:25,264 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_mac_header [2021-11-13 17:43:25,264 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 17:43:25,264 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 17:43:25,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:43:25,264 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-11-13 17:43:25,265 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-11-13 17:43:25,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 17:43:25,265 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2021-11-13 17:43:25,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2021-11-13 17:43:25,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 17:43:25,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:43:25,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:43:25,910 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 17:43:26,871 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:43:26,872 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-13 17:43:26,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:43:26 BoogieIcfgContainer [2021-11-13 17:43:26,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:43:26,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:43:26,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:43:26,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:43:26,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:43:22" (1/3) ... [2021-11-13 17:43:26,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f2e3b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:43:26, skipping insertion in model container [2021-11-13 17:43:26,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:24" (2/3) ... [2021-11-13 17:43:26,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f2e3b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:43:26, skipping insertion in model container [2021-11-13 17:43:26,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:43:26" (3/3) ... [2021-11-13 17:43:26,886 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i [2021-11-13 17:43:26,893 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:43:26,893 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 17:43:26,959 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:43:26,968 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 17:43:26,968 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 17:43:27,023 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 170 states have (on average 1.3647058823529412) internal successors, (232), 175 states have internal predecessors, (232), 40 states have call successors, (40), 16 states have call predecessors, (40), 15 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2021-11-13 17:43:27,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-13 17:43:27,033 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:27,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:43:27,036 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:27,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:27,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1296188460, now seen corresponding path program 1 times [2021-11-13 17:43:27,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:43:27,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657025641] [2021-11-13 17:43:27,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:27,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:43:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:27,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:43:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:27,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:27,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:27,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:43:27,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:43:27,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657025641] [2021-11-13 17:43:27,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657025641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:43:27,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:43:27,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:43:27,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354878595] [2021-11-13 17:43:27,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:43:27,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:43:27,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:43:27,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:43:27,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:43:27,768 INFO L87 Difference]: Start difference. First operand has 227 states, 170 states have (on average 1.3647058823529412) internal successors, (232), 175 states have internal predecessors, (232), 40 states have call successors, (40), 16 states have call predecessors, (40), 15 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:28,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:28,342 INFO L93 Difference]: Finished difference Result 464 states and 657 transitions. [2021-11-13 17:43:28,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:43:28,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2021-11-13 17:43:28,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:28,364 INFO L225 Difference]: With dead ends: 464 [2021-11-13 17:43:28,364 INFO L226 Difference]: Without dead ends: 232 [2021-11-13 17:43:28,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:43:28,377 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 76 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 335.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.01ms SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 449.97ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:28,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 464 Invalid, 150 Unknown, 0 Unchecked, 13.01ms Time], IncrementalHoareTripleChecker [82 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 449.97ms Time] [2021-11-13 17:43:28,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-11-13 17:43:28,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 217. [2021-11-13 17:43:28,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 165 states have (on average 1.303030303030303) internal successors, (215), 165 states have internal predecessors, (215), 37 states have call successors, (37), 15 states have call predecessors, (37), 14 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2021-11-13 17:43:28,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 288 transitions. [2021-11-13 17:43:28,470 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 288 transitions. Word has length 35 [2021-11-13 17:43:28,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:28,471 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 288 transitions. [2021-11-13 17:43:28,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:28,472 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 288 transitions. [2021-11-13 17:43:28,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-13 17:43:28,476 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:28,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:43:28,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:43:28,478 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:28,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:28,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1162174954, now seen corresponding path program 1 times [2021-11-13 17:43:28,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:43:28,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014054289] [2021-11-13 17:43:28,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:28,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:43:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:28,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:43:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:28,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:28,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:28,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:28,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:43:28,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:43:28,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014054289] [2021-11-13 17:43:28,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014054289] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:43:28,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:43:28,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:43:28,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616544805] [2021-11-13 17:43:28,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:43:28,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:43:28,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:43:28,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:43:28,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:43:28,806 INFO L87 Difference]: Start difference. First operand 217 states and 288 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:29,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:29,648 INFO L93 Difference]: Finished difference Result 643 states and 867 transitions. [2021-11-13 17:43:29,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:43:29,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2021-11-13 17:43:29,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:29,657 INFO L225 Difference]: With dead ends: 643 [2021-11-13 17:43:29,657 INFO L226 Difference]: Without dead ends: 434 [2021-11-13 17:43:29,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:43:29,661 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 379 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 554.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.02ms SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 665.31ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:29,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [404 Valid, 709 Invalid, 324 Unknown, 0 Unchecked, 25.02ms Time], IncrementalHoareTripleChecker [160 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 665.31ms Time] [2021-11-13 17:43:29,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-11-13 17:43:29,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 404. [2021-11-13 17:43:29,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 305 states have (on average 1.301639344262295) internal successors, (397), 305 states have internal predecessors, (397), 70 states have call successors, (70), 29 states have call predecessors, (70), 28 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2021-11-13 17:43:29,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 536 transitions. [2021-11-13 17:43:29,726 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 536 transitions. Word has length 35 [2021-11-13 17:43:29,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:29,726 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 536 transitions. [2021-11-13 17:43:29,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:29,727 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 536 transitions. [2021-11-13 17:43:29,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-13 17:43:29,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:29,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:43:29,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 17:43:29,731 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:29,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:29,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1455096019, now seen corresponding path program 1 times [2021-11-13 17:43:29,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:43:29,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663732472] [2021-11-13 17:43:29,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:29,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:43:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:29,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:43:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:29,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:29,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:29,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:43:29,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:43:29,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663732472] [2021-11-13 17:43:29,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663732472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:43:29,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:43:29,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:43:29,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466391942] [2021-11-13 17:43:29,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:43:29,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:43:29,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:43:29,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:43:29,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:43:29,957 INFO L87 Difference]: Start difference. First operand 404 states and 536 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, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:30,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:30,534 INFO L93 Difference]: Finished difference Result 834 states and 1118 transitions. [2021-11-13 17:43:30,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:43:30,535 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, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2021-11-13 17:43:30,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:30,541 INFO L225 Difference]: With dead ends: 834 [2021-11-13 17:43:30,541 INFO L226 Difference]: Without dead ends: 438 [2021-11-13 17:43:30,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:43:30,545 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 42 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 425.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.63ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 510.75ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:30,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 828 Invalid, 234 Unknown, 0 Unchecked, 10.63ms Time], IncrementalHoareTripleChecker [40 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 510.75ms Time] [2021-11-13 17:43:30,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2021-11-13 17:43:30,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 405. [2021-11-13 17:43:30,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 306 states have (on average 1.3006535947712419) internal successors, (398), 306 states have internal predecessors, (398), 70 states have call successors, (70), 29 states have call predecessors, (70), 28 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2021-11-13 17:43:30,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 537 transitions. [2021-11-13 17:43:30,594 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 537 transitions. Word has length 41 [2021-11-13 17:43:30,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:30,595 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 537 transitions. [2021-11-13 17:43:30,596 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, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:30,596 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 537 transitions. [2021-11-13 17:43:30,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-13 17:43:30,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:30,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:43:30,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:43:30,610 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:30,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:30,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1093757940, now seen corresponding path program 1 times [2021-11-13 17:43:30,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:43:30,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334023794] [2021-11-13 17:43:30,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:30,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:43:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:30,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:43:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:30,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:30,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:30,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:43:30,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:43:30,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334023794] [2021-11-13 17:43:30,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334023794] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 17:43:30,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771074035] [2021-11-13 17:43:30,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:30,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:43:30,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:43:30,818 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:43:30,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 17:43:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:31,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:43:31,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:43:31,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:43:31,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:43:31,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:43:31,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771074035] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:43:31,400 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 17:43:31,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2021-11-13 17:43:31,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674226505] [2021-11-13 17:43:31,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 17:43:31,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:43:31,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:43:31,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:43:31,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:43:31,403 INFO L87 Difference]: Start difference. First operand 405 states and 537 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:31,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:31,882 INFO L93 Difference]: Finished difference Result 844 states and 1132 transitions. [2021-11-13 17:43:31,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 17:43:31,883 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2021-11-13 17:43:31,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:31,891 INFO L225 Difference]: With dead ends: 844 [2021-11-13 17:43:31,891 INFO L226 Difference]: Without dead ends: 447 [2021-11-13 17:43:31,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:43:31,900 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 99 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 342.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.89ms SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 417.33ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:31,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 682 Invalid, 219 Unknown, 0 Unchecked, 8.89ms Time], IncrementalHoareTripleChecker [81 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 417.33ms Time] [2021-11-13 17:43:31,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-11-13 17:43:31,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 417. [2021-11-13 17:43:31,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 318 states have (on average 1.29874213836478) internal successors, (413), 318 states have internal predecessors, (413), 70 states have call successors, (70), 29 states have call predecessors, (70), 28 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2021-11-13 17:43:31,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 552 transitions. [2021-11-13 17:43:31,969 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 552 transitions. Word has length 45 [2021-11-13 17:43:31,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:31,971 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 552 transitions. [2021-11-13 17:43:31,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:31,972 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 552 transitions. [2021-11-13 17:43:31,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-13 17:43:31,985 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:31,985 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:43:32,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 17:43:32,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:43:32,214 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:32,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:32,215 INFO L85 PathProgramCache]: Analyzing trace with hash 797749943, now seen corresponding path program 2 times [2021-11-13 17:43:32,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:43:32,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167949228] [2021-11-13 17:43:32,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:32,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:43:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:43:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,385 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-13 17:43:32,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:43:32,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167949228] [2021-11-13 17:43:32,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167949228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:43:32,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:43:32,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:43:32,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712394692] [2021-11-13 17:43:32,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:43:32,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:43:32,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:43:32,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:43:32,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:43:32,390 INFO L87 Difference]: Start difference. First operand 417 states and 552 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:33,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:33,212 INFO L93 Difference]: Finished difference Result 855 states and 1142 transitions. [2021-11-13 17:43:33,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 17:43:33,213 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 57 [2021-11-13 17:43:33,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:33,218 INFO L225 Difference]: With dead ends: 855 [2021-11-13 17:43:33,218 INFO L226 Difference]: Without dead ends: 446 [2021-11-13 17:43:33,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:43:33,221 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 440 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 595.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.21ms SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 718.82ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:33,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [465 Valid, 1152 Invalid, 432 Unknown, 0 Unchecked, 15.21ms Time], IncrementalHoareTripleChecker [119 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 718.82ms Time] [2021-11-13 17:43:33,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2021-11-13 17:43:33,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 416. [2021-11-13 17:43:33,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 317 states have (on average 1.2902208201892744) internal successors, (409), 317 states have internal predecessors, (409), 70 states have call successors, (70), 29 states have call predecessors, (70), 28 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2021-11-13 17:43:33,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 548 transitions. [2021-11-13 17:43:33,256 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 548 transitions. Word has length 57 [2021-11-13 17:43:33,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:33,257 INFO L470 AbstractCegarLoop]: Abstraction has 416 states and 548 transitions. [2021-11-13 17:43:33,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:33,258 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 548 transitions. [2021-11-13 17:43:33,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-13 17:43:33,260 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:33,261 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:43:33,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 17:43:33,262 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:33,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:33,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1188095234, now seen corresponding path program 1 times [2021-11-13 17:43:33,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:43:33,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172255316] [2021-11-13 17:43:33,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:33,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:43:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:33,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:43:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:33,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:33,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:33,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 17:43:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:33,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:33,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:33,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 17:43:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:33,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:33,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:33,527 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-13 17:43:33,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:43:33,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172255316] [2021-11-13 17:43:33,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172255316] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:43:33,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:43:33,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:43:33,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697130445] [2021-11-13 17:43:33,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:43:33,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:43:33,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:43:33,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:43:33,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:43:33,531 INFO L87 Difference]: Start difference. First operand 416 states and 548 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-13 17:43:34,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:34,410 INFO L93 Difference]: Finished difference Result 1279 states and 1734 transitions. [2021-11-13 17:43:34,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:43:34,411 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 98 [2021-11-13 17:43:34,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:34,421 INFO L225 Difference]: With dead ends: 1279 [2021-11-13 17:43:34,422 INFO L226 Difference]: Without dead ends: 866 [2021-11-13 17:43:34,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:43:34,425 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 370 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 620.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.49ms SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 728.74ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:34,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 1284 Invalid, 448 Unknown, 0 Unchecked, 14.49ms Time], IncrementalHoareTripleChecker [170 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 728.74ms Time] [2021-11-13 17:43:34,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2021-11-13 17:43:34,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 808. [2021-11-13 17:43:34,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 613 states have (on average 1.2903752039151712) internal successors, (791), 613 states have internal predecessors, (791), 138 states have call successors, (138), 57 states have call predecessors, (138), 56 states have return successors, (149), 137 states have call predecessors, (149), 137 states have call successors, (149) [2021-11-13 17:43:34,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1078 transitions. [2021-11-13 17:43:34,496 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1078 transitions. Word has length 98 [2021-11-13 17:43:34,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:34,497 INFO L470 AbstractCegarLoop]: Abstraction has 808 states and 1078 transitions. [2021-11-13 17:43:34,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-13 17:43:34,498 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1078 transitions. [2021-11-13 17:43:34,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-13 17:43:34,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:34,504 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:43:34,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 17:43:34,504 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:34,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:34,505 INFO L85 PathProgramCache]: Analyzing trace with hash -2043442978, now seen corresponding path program 1 times [2021-11-13 17:43:34,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:43:34,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059791348] [2021-11-13 17:43:34,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:34,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:43:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:34,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:43:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:34,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:34,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:34,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 17:43:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:34,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:34,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:34,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 17:43:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:34,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:34,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:34,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-13 17:43:34,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:34,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-13 17:43:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:34,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:34,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:34,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:34,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:34,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:34,989 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-11-13 17:43:34,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:43:34,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059791348] [2021-11-13 17:43:34,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059791348] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:43:34,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:43:34,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-13 17:43:34,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010782442] [2021-11-13 17:43:34,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:43:34,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:43:34,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:43:34,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:43:34,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:43:34,994 INFO L87 Difference]: Start difference. First operand 808 states and 1078 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-13 17:43:35,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:35,962 INFO L93 Difference]: Finished difference Result 1660 states and 2258 transitions. [2021-11-13 17:43:35,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 17:43:35,963 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) Word has length 149 [2021-11-13 17:43:35,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:35,972 INFO L225 Difference]: With dead ends: 1660 [2021-11-13 17:43:35,973 INFO L226 Difference]: Without dead ends: 860 [2021-11-13 17:43:35,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2021-11-13 17:43:35,977 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 94 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 659.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 2242 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.45ms SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 780.78ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:35,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 2242 Invalid, 605 Unknown, 0 Unchecked, 15.45ms Time], IncrementalHoareTripleChecker [83 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 780.78ms Time] [2021-11-13 17:43:35,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2021-11-13 17:43:36,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 818. [2021-11-13 17:43:36,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 619 states have (on average 1.2746365105008077) internal successors, (789), 621 states have internal predecessors, (789), 138 states have call successors, (138), 57 states have call predecessors, (138), 60 states have return successors, (155), 139 states have call predecessors, (155), 137 states have call successors, (155) [2021-11-13 17:43:36,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1082 transitions. [2021-11-13 17:43:36,046 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1082 transitions. Word has length 149 [2021-11-13 17:43:36,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:36,048 INFO L470 AbstractCegarLoop]: Abstraction has 818 states and 1082 transitions. [2021-11-13 17:43:36,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-13 17:43:36,048 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1082 transitions. [2021-11-13 17:43:36,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-13 17:43:36,054 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:36,054 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:43:36,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 17:43:36,055 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:36,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:36,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1151008919, now seen corresponding path program 1 times [2021-11-13 17:43:36,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:43:36,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277377679] [2021-11-13 17:43:36,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:36,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:43:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:36,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:43:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:36,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:36,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:36,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 17:43:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:36,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:36,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:36,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 17:43:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:36,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:36,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:36,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-13 17:43:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:36,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-13 17:43:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:36,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:36,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:36,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:36,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:36,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 17:43:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:36,427 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 7 proven. 28 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-11-13 17:43:36,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:43:36,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277377679] [2021-11-13 17:43:36,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277377679] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 17:43:36,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283553971] [2021-11-13 17:43:36,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:36,428 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:43:36,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:43:36,430 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:43:36,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 17:43:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:36,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 17:43:36,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:43:37,164 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 49 proven. 28 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-13 17:43:37,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:43:37,698 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 7 proven. 28 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-11-13 17:43:37,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283553971] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:43:37,698 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 17:43:37,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 15 [2021-11-13 17:43:37,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098198372] [2021-11-13 17:43:37,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 17:43:37,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 17:43:37,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:43:37,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 17:43:37,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-11-13 17:43:37,702 INFO L87 Difference]: Start difference. First operand 818 states and 1082 transitions. Second operand has 15 states, 15 states have (on average 9.733333333333333) internal successors, (146), 11 states have internal predecessors, (146), 2 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-13 17:43:38,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:38,509 INFO L93 Difference]: Finished difference Result 1329 states and 1792 transitions. [2021-11-13 17:43:38,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 17:43:38,510 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.733333333333333) internal successors, (146), 11 states have internal predecessors, (146), 2 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2021-11-13 17:43:38,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:38,518 INFO L225 Difference]: With dead ends: 1329 [2021-11-13 17:43:38,518 INFO L226 Difference]: Without dead ends: 892 [2021-11-13 17:43:38,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-11-13 17:43:38,522 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 101 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 590.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.95ms SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 713.25ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:38,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 1399 Invalid, 461 Unknown, 0 Unchecked, 11.95ms Time], IncrementalHoareTripleChecker [58 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 713.25ms Time] [2021-11-13 17:43:38,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2021-11-13 17:43:38,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 850. [2021-11-13 17:43:38,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 651 states have (on average 1.273425499231951) internal successors, (829), 653 states have internal predecessors, (829), 138 states have call successors, (138), 57 states have call predecessors, (138), 60 states have return successors, (155), 139 states have call predecessors, (155), 137 states have call successors, (155) [2021-11-13 17:43:38,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1122 transitions. [2021-11-13 17:43:38,593 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1122 transitions. Word has length 155 [2021-11-13 17:43:38,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:38,593 INFO L470 AbstractCegarLoop]: Abstraction has 850 states and 1122 transitions. [2021-11-13 17:43:38,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.733333333333333) internal successors, (146), 11 states have internal predecessors, (146), 2 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-13 17:43:38,594 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1122 transitions. [2021-11-13 17:43:38,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-13 17:43:38,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:38,599 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:43:38,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 17:43:38,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-13 17:43:38,826 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:38,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:38,827 INFO L85 PathProgramCache]: Analyzing trace with hash 745918541, now seen corresponding path program 2 times [2021-11-13 17:43:38,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:43:38,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016044719] [2021-11-13 17:43:38,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:38,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:43:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:39,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:43:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:39,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:39,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:39,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 17:43:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:39,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:39,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:39,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-13 17:43:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:39,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:39,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-13 17:43:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:39,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 17:43:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:39,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:39,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:39,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:39,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:39,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 17:43:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:39,284 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-11-13 17:43:39,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:43:39,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016044719] [2021-11-13 17:43:39,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016044719] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:43:39,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:43:39,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:43:39,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910451966] [2021-11-13 17:43:39,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:43:39,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:43:39,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:43:39,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:43:39,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:43:39,289 INFO L87 Difference]: Start difference. First operand 850 states and 1122 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (11), 6 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-13 17:43:40,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:40,144 INFO L93 Difference]: Finished difference Result 1736 states and 2321 transitions. [2021-11-13 17:43:40,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:43:40,145 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (11), 6 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 171 [2021-11-13 17:43:40,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:40,154 INFO L225 Difference]: With dead ends: 1736 [2021-11-13 17:43:40,154 INFO L226 Difference]: Without dead ends: 893 [2021-11-13 17:43:40,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:43:40,158 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 56 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 654.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.20ms SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 769.63ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:40,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 1097 Invalid, 394 Unknown, 0 Unchecked, 10.20ms Time], IncrementalHoareTripleChecker [49 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 769.63ms Time] [2021-11-13 17:43:40,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2021-11-13 17:43:40,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 851. [2021-11-13 17:43:40,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 652 states have (on average 1.2730061349693251) internal successors, (830), 654 states have internal predecessors, (830), 138 states have call successors, (138), 57 states have call predecessors, (138), 60 states have return successors, (155), 139 states have call predecessors, (155), 137 states have call successors, (155) [2021-11-13 17:43:40,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1123 transitions. [2021-11-13 17:43:40,223 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1123 transitions. Word has length 171 [2021-11-13 17:43:40,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:40,224 INFO L470 AbstractCegarLoop]: Abstraction has 851 states and 1123 transitions. [2021-11-13 17:43:40,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (11), 6 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-13 17:43:40,224 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1123 transitions. [2021-11-13 17:43:40,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-13 17:43:40,229 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:40,230 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:43:40,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 17:43:40,230 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:40,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:40,231 INFO L85 PathProgramCache]: Analyzing trace with hash -595602417, now seen corresponding path program 1 times [2021-11-13 17:43:40,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:43:40,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713275864] [2021-11-13 17:43:40,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:40,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:43:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:43:40,496 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:43:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:43:41,020 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:43:41,021 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 17:43:41,022 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 17:43:41,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 17:43:41,029 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1] [2021-11-13 17:43:41,033 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 17:43:41,102 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,103 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,104 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,104 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,105 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,105 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,106 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,106 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,106 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,107 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,107 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,108 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,108 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,108 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,109 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,109 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,109 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,110 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,110 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,110 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,111 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,111 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,111 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,111 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,112 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,112 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,112 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,113 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,113 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,113 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,114 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,114 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,114 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,114 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,115 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,115 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,115 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,116 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,116 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,116 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,116 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,117 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,117 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,117 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,118 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,118 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,118 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,119 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,119 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,119 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,120 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,120 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,120 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,120 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,121 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,121 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,121 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,121 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,122 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,122 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,122 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,123 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,123 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,123 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,124 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,124 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,124 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,125 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,125 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,125 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,126 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,126 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,126 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,126 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,127 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,127 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,127 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,127 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,128 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,128 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,128 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,129 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,129 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,129 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,130 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,130 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,130 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,131 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,131 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,131 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,131 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,132 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,132 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,132 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,133 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,133 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,133 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,133 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,134 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,134 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,134 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,135 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,135 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,135 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,135 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,136 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,136 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,136 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,137 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,137 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,137 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,138 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,138 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,138 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,139 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,139 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,139 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,139 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,140 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,140 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,140 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,141 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,141 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,141 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,142 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,142 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,142 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,142 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,143 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,143 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,144 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,144 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,144 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,144 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,145 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,145 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,145 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,146 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,146 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,146 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,146 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,147 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,147 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,147 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,148 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,148 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,148 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,149 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,149 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,149 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,149 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,150 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,150 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,150 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,151 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,151 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,151 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,151 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,152 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,152 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,152 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,153 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,153 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,153 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,154 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,154 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,154 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,154 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,155 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,155 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,155 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,156 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,156 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,156 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,157 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,157 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,157 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,157 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,158 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,158 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,158 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,159 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,159 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,159 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,160 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,160 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,160 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,161 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,161 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,161 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,164 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,164 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,165 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,165 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,165 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,166 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,166 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,166 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,169 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,169 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,170 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,170 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,170 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,171 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,171 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,171 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,172 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,172 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,172 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,172 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,173 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,173 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,173 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,174 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,174 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,174 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,175 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,175 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,175 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,176 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,176 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,176 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,177 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,177 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,177 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,177 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,178 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,178 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,178 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,179 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,179 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,179 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,180 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,180 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,180 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,180 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,181 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,181 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,182 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,182 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,182 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,182 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,183 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,183 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,183 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,184 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,185 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,185 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,185 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,185 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,186 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,186 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,186 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,187 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,187 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,187 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,188 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,188 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,195 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,196 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,196 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,197 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,197 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,197 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,198 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,198 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,199 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,199 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,199 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,199 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,200 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,200 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,200 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,201 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,201 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,201 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,202 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,202 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,202 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,202 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,203 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,203 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,204 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,204 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,204 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,204 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,205 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,205 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,205 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,206 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,206 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,206 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,207 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,207 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,207 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,208 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,208 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,208 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,209 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,209 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,209 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,209 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,210 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,210 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,211 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,211 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,211 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,211 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,212 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,212 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,212 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,213 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,213 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,213 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,214 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,214 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,214 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,215 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,215 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,215 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,216 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,216 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,216 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,217 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-13 17:43:41,217 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,217 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-13 17:43:41,226 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.getProgramExecutionAsString(UnprovableResult.java:132) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.getLongDescription(UnprovableResult.java:125) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-13 17:43:41,230 INFO L158 Benchmark]: Toolchain (without parser) took 18310.39ms. Allocated memory was 102.8MB in the beginning and 272.6MB in the end (delta: 169.9MB). Free memory was 64.2MB in the beginning and 133.7MB in the end (delta: -69.5MB). Peak memory consumption was 141.4MB. Max. memory is 16.1GB. [2021-11-13 17:43:41,230 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 102.8MB. Free memory was 56.9MB in the beginning and 56.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:43:41,231 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1871.91ms. Allocated memory was 102.8MB in the beginning and 130.0MB in the end (delta: 27.3MB). Free memory was 64.0MB in the beginning and 58.0MB in the end (delta: 6.0MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2021-11-13 17:43:41,231 INFO L158 Benchmark]: Boogie Procedure Inliner took 214.71ms. Allocated memory is still 130.0MB. Free memory was 58.0MB in the beginning and 90.0MB in the end (delta: -32.0MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-11-13 17:43:41,232 INFO L158 Benchmark]: Boogie Preprocessor took 116.86ms. Allocated memory is still 130.0MB. Free memory was 90.0MB in the beginning and 85.1MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 17:43:41,232 INFO L158 Benchmark]: RCFGBuilder took 1747.13ms. Allocated memory is still 130.0MB. Free memory was 85.1MB in the beginning and 66.5MB in the end (delta: 18.6MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2021-11-13 17:43:41,233 INFO L158 Benchmark]: TraceAbstraction took 14351.86ms. Allocated memory was 130.0MB in the beginning and 272.6MB in the end (delta: 142.6MB). Free memory was 65.7MB in the beginning and 133.7MB in the end (delta: -68.0MB). Peak memory consumption was 114.1MB. Max. memory is 16.1GB. [2021-11-13 17:43:41,235 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 102.8MB. Free memory was 56.9MB in the beginning and 56.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1871.91ms. Allocated memory was 102.8MB in the beginning and 130.0MB in the end (delta: 27.3MB). Free memory was 64.0MB in the beginning and 58.0MB in the end (delta: 6.0MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 214.71ms. Allocated memory is still 130.0MB. Free memory was 58.0MB in the beginning and 90.0MB in the end (delta: -32.0MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 116.86ms. Allocated memory is still 130.0MB. Free memory was 90.0MB in the beginning and 85.1MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1747.13ms. Allocated memory is still 130.0MB. Free memory was 85.1MB in the beginning and 66.5MB in the end (delta: 18.6MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. * TraceAbstraction took 14351.86ms. Allocated memory was 130.0MB in the beginning and 272.6MB in the end (delta: 142.6MB). Free memory was 65.7MB in the beginning and 133.7MB in the end (delta: -68.0MB). Peak memory consumption was 114.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-13 17:43:41,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/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_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/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 992626749f2e8ca84a93ad6fc64a197d6c8e66b412d995c24cf1e1136a1f2393 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:43:44,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:43:44,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:43:44,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:43:44,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:43:44,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:43:44,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:43:44,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:43:44,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:43:44,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:43:44,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:43:44,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:43:44,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:43:44,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:43:44,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:43:44,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:43:44,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:43:44,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:43:44,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:43:44,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:43:44,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:43:44,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:43:44,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:43:44,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:43:44,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:43:44,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:43:44,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:43:44,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:43:44,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:43:44,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:43:44,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:43:44,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:43:44,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:43:44,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:43:44,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:43:44,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:43:44,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:43:44,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:43:44,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:43:44,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:43:44,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:43:44,621 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-13 17:43:44,674 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:43:44,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:43:44,675 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:43:44,676 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:43:44,677 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:43:44,677 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:43:44,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:43:44,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:43:44,680 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:43:44,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:43:44,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:43:44,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:43:44,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:43:44,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:43:44,683 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 17:43:44,684 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 17:43:44,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:43:44,684 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:43:44,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:43:44,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:43:44,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:43:44,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:43:44,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:43:44,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:43:44,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:43:44,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:43:44,687 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-13 17:43:44,687 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 17:43:44,688 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:43:44,688 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:43:44,688 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:43:44,689 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:43:44,689 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 17:43:44,689 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 992626749f2e8ca84a93ad6fc64a197d6c8e66b412d995c24cf1e1136a1f2393 [2021-11-13 17:43:45,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:43:45,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:43:45,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:43:45,257 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:43:45,258 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:43:45,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i [2021-11-13 17:43:45,360 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/data/400b4b9bf/8955c79dbccb4da4bdc3896f5256d40a/FLAG55543ff63 [2021-11-13 17:43:46,465 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:43:46,466 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i [2021-11-13 17:43:46,538 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/data/400b4b9bf/8955c79dbccb4da4bdc3896f5256d40a/FLAG55543ff63 [2021-11-13 17:43:46,904 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/data/400b4b9bf/8955c79dbccb4da4bdc3896f5256d40a [2021-11-13 17:43:46,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:43:46,909 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:43:46,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:43:46,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:43:46,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:43:46,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:43:46" (1/1) ... [2021-11-13 17:43:46,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3707097a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:46, skipping insertion in model container [2021-11-13 17:43:46,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:43:46" (1/1) ... [2021-11-13 17:43:46,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:43:47,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:43:48,026 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_5dcdc331-419f-461f-a03a-cdf945bc27fc/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i[154031,154044] [2021-11-13 17:43:48,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:43:48,430 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:43:48,685 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_5dcdc331-419f-461f-a03a-cdf945bc27fc/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i[154031,154044] [2021-11-13 17:43:48,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:43:48,858 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:43:48,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:48 WrapperNode [2021-11-13 17:43:48,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:43:48,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:43:48,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:43:48,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:43:48,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:48" (1/1) ... [2021-11-13 17:43:48,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:48" (1/1) ... [2021-11-13 17:43:49,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:43:49,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:43:49,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:43:49,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:43:49,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:48" (1/1) ... [2021-11-13 17:43:49,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:48" (1/1) ... [2021-11-13 17:43:49,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:48" (1/1) ... [2021-11-13 17:43:49,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:48" (1/1) ... [2021-11-13 17:43:49,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:48" (1/1) ... [2021-11-13 17:43:49,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:48" (1/1) ... [2021-11-13 17:43:49,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:48" (1/1) ... [2021-11-13 17:43:49,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:43:49,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:43:49,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:43:49,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:43:49,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:48" (1/1) ... [2021-11-13 17:43:49,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:43:49,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:43:49,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:43:49,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:43:49,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 17:43:49,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 17:43:49,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 17:43:49,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 17:43:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-13 17:43:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 17:43:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 17:43:49,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 17:43:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 17:43:49,349 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 17:43:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 17:43:49,349 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 17:43:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 17:43:49,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 17:43:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_14 [2021-11-13 17:43:49,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_14 [2021-11-13 17:43:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~X~C_INT~X~$Pointer$~X~C_INT~TO~VOID [2021-11-13 17:43:49,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~X~C_INT~X~$Pointer$~X~C_INT~TO~VOID [2021-11-13 17:43:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-11-13 17:43:49,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-11-13 17:43:49,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-13 17:43:49,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-13 17:43:49,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-13 17:43:49,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-13 17:43:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-13 17:43:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-13 17:43:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 17:43:49,352 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 17:43:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 17:43:49,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2021-11-13 17:43:49,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2021-11-13 17:43:49,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 17:43:49,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:43:49,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-13 17:43:49,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-13 17:43:49,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-13 17:43:49,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 17:43:49,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-11-13 17:43:49,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-11-13 17:43:49,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 17:43:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 17:43:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-13 17:43:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:43:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 17:43:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 17:43:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 17:43:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 17:43:49,358 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-13 17:43:49,358 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-13 17:43:49,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2021-11-13 17:43:49,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2021-11-13 17:43:49,358 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 17:43:49,359 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 17:43:49,359 INFO L130 BoogieDeclarations]: Found specification of procedure skb_mac_header [2021-11-13 17:43:49,359 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_mac_header [2021-11-13 17:43:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-13 17:43:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-11-13 17:43:49,362 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-11-13 17:43:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:43:49,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:43:50,282 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 17:43:52,380 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:43:52,381 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-13 17:43:52,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:43:52 BoogieIcfgContainer [2021-11-13 17:43:52,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:43:52,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:43:52,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:43:52,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:43:52,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:43:46" (1/3) ... [2021-11-13 17:43:52,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d61ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:43:52, skipping insertion in model container [2021-11-13 17:43:52,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:48" (2/3) ... [2021-11-13 17:43:52,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d61ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:43:52, skipping insertion in model container [2021-11-13 17:43:52,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:43:52" (3/3) ... [2021-11-13 17:43:52,420 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i [2021-11-13 17:43:52,427 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:43:52,428 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 17:43:52,529 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:43:52,537 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 17:43:52,537 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 17:43:52,576 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 170 states have (on average 1.3647058823529412) internal successors, (232), 175 states have internal predecessors, (232), 40 states have call successors, (40), 16 states have call predecessors, (40), 15 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2021-11-13 17:43:52,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-13 17:43:52,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:52,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:43:52,587 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:52,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:52,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1585805392, now seen corresponding path program 1 times [2021-11-13 17:43:52,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:43:52,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62733499] [2021-11-13 17:43:52,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:52,613 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:43:52,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:43:52,618 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:43:52,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 17:43:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:53,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 17:43:53,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:43:53,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:43:53,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:43:53,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:43:53,466 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:43:53,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [62733499] [2021-11-13 17:43:53,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [62733499] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:43:53,468 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:43:53,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 17:43:53,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907485691] [2021-11-13 17:43:53,472 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:43:53,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 17:43:53,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:43:53,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 17:43:53,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:43:53,531 INFO L87 Difference]: Start difference. First operand has 227 states, 170 states have (on average 1.3647058823529412) internal successors, (232), 175 states have internal predecessors, (232), 40 states have call successors, (40), 16 states have call predecessors, (40), 15 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:53,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:53,605 INFO L93 Difference]: Finished difference Result 449 states and 630 transitions. [2021-11-13 17:43:53,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:43:53,613 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2021-11-13 17:43:53,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:53,627 INFO L225 Difference]: With dead ends: 449 [2021-11-13 17:43:53,632 INFO L226 Difference]: Without dead ends: 217 [2021-11-13 17:43:53,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:43:53,644 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:53,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 4.68ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 17:43:53,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-11-13 17:43:53,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2021-11-13 17:43:53,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 165 states have (on average 1.303030303030303) internal successors, (215), 165 states have internal predecessors, (215), 37 states have call successors, (37), 15 states have call predecessors, (37), 14 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2021-11-13 17:43:53,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 288 transitions. [2021-11-13 17:43:53,729 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 288 transitions. Word has length 35 [2021-11-13 17:43:53,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:53,730 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 288 transitions. [2021-11-13 17:43:53,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:53,730 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 288 transitions. [2021-11-13 17:43:53,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-13 17:43:53,734 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:53,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:43:53,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 17:43:53,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:43:53,958 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:53,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:53,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1719818898, now seen corresponding path program 1 times [2021-11-13 17:43:53,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:43:53,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022671059] [2021-11-13 17:43:53,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:53,961 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:43:53,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:43:53,968 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:43:54,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 17:43:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:54,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:43:54,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:43:54,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:43:54,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:43:54,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:43:54,653 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:43:54,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022671059] [2021-11-13 17:43:54,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2022671059] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:43:54,654 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:43:54,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 17:43:54,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506060737] [2021-11-13 17:43:54,655 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:43:54,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:43:54,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:43:54,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:43:54,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:43:54,660 INFO L87 Difference]: Start difference. First operand 217 states and 288 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:54,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:54,780 INFO L93 Difference]: Finished difference Result 428 states and 569 transitions. [2021-11-13 17:43:54,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:43:54,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2021-11-13 17:43:54,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:54,789 INFO L225 Difference]: With dead ends: 428 [2021-11-13 17:43:54,794 INFO L226 Difference]: Without dead ends: 218 [2021-11-13 17:43:54,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:43:54,801 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 0 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.36ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.52ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:54,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 857 Invalid, 5 Unknown, 0 Unchecked, 13.36ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 24.52ms Time] [2021-11-13 17:43:54,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-11-13 17:43:54,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2021-11-13 17:43:54,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 166 states have (on average 1.3012048192771084) internal successors, (216), 166 states have internal predecessors, (216), 37 states have call successors, (37), 15 states have call predecessors, (37), 14 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2021-11-13 17:43:54,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 289 transitions. [2021-11-13 17:43:54,870 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 289 transitions. Word has length 35 [2021-11-13 17:43:54,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:54,873 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 289 transitions. [2021-11-13 17:43:54,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:54,877 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 289 transitions. [2021-11-13 17:43:54,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-13 17:43:54,881 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:54,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:43:54,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 17:43:55,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:43:55,098 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:55,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:55,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1435931756, now seen corresponding path program 1 times [2021-11-13 17:43:55,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:43:55,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016147565] [2021-11-13 17:43:55,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:55,101 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:43:55,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:43:55,102 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:43:55,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 17:43:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:55,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:43:55,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:43:55,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:43:55,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:43:55,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:43:55,738 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:43:55,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016147565] [2021-11-13 17:43:55,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016147565] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:43:55,742 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:43:55,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 17:43:55,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293577230] [2021-11-13 17:43:55,742 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:43:55,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:43:55,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:43:55,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:43:55,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:43:55,745 INFO L87 Difference]: Start difference. First operand 218 states and 289 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:56,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:56,861 INFO L93 Difference]: Finished difference Result 800 states and 1067 transitions. [2021-11-13 17:43:56,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:43:56,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2021-11-13 17:43:56,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:56,869 INFO L225 Difference]: With dead ends: 800 [2021-11-13 17:43:56,870 INFO L226 Difference]: Without dead ends: 591 [2021-11-13 17:43:56,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:43:56,873 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 508 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 963.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.41ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1033.88ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:56,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [508 Valid, 1042 Invalid, 100 Unknown, 0 Unchecked, 11.41ms Time], IncrementalHoareTripleChecker [8 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 1033.88ms Time] [2021-11-13 17:43:56,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2021-11-13 17:43:56,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2021-11-13 17:43:56,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 445 states have (on average 1.303370786516854) internal successors, (580), 445 states have internal predecessors, (580), 103 states have call successors, (103), 43 states have call predecessors, (103), 42 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2021-11-13 17:43:56,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 785 transitions. [2021-11-13 17:43:56,943 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 785 transitions. Word has length 36 [2021-11-13 17:43:56,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:56,944 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 785 transitions. [2021-11-13 17:43:56,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:56,944 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 785 transitions. [2021-11-13 17:43:56,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-13 17:43:56,947 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:56,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:43:56,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 17:43:57,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:43:57,169 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:57,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:57,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1862511787, now seen corresponding path program 1 times [2021-11-13 17:43:57,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:43:57,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488042173] [2021-11-13 17:43:57,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:57,172 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:43:57,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:43:57,173 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:43:57,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 17:43:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:57,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:43:57,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:43:57,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:43:57,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:43:57,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:43:57,789 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:43:57,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488042173] [2021-11-13 17:43:57,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488042173] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:43:57,789 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:43:57,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 17:43:57,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601542463] [2021-11-13 17:43:57,790 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:43:57,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:43:57,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:43:57,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:43:57,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:43:57,792 INFO L87 Difference]: Start difference. First operand 591 states and 785 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:57,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:57,878 INFO L93 Difference]: Finished difference Result 1178 states and 1567 transitions. [2021-11-13 17:43:57,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:43:57,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2021-11-13 17:43:57,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:57,885 INFO L225 Difference]: With dead ends: 1178 [2021-11-13 17:43:57,886 INFO L226 Difference]: Without dead ends: 596 [2021-11-13 17:43:57,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:43:57,889 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 12 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.47ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.74ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:57,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 566 Invalid, 12 Unknown, 0 Unchecked, 3.47ms Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 43.74ms Time] [2021-11-13 17:43:57,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2021-11-13 17:43:57,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2021-11-13 17:43:57,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 450 states have (on average 1.3022222222222222) internal successors, (586), 450 states have internal predecessors, (586), 103 states have call successors, (103), 43 states have call predecessors, (103), 42 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2021-11-13 17:43:57,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 791 transitions. [2021-11-13 17:43:57,940 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 791 transitions. Word has length 42 [2021-11-13 17:43:57,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:57,941 INFO L470 AbstractCegarLoop]: Abstraction has 596 states and 791 transitions. [2021-11-13 17:43:57,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:57,941 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 791 transitions. [2021-11-13 17:43:57,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-13 17:43:57,944 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:57,945 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:43:57,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 17:43:58,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:43:58,170 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:58,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:58,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1997190471, now seen corresponding path program 1 times [2021-11-13 17:43:58,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:43:58,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1486518799] [2021-11-13 17:43:58,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:58,172 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:43:58,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:43:58,173 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:43:58,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 17:43:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:58,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:43:58,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:43:58,686 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:43:58,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:43:58,921 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:43:58,921 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:43:58,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1486518799] [2021-11-13 17:43:58,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1486518799] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:43:58,921 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:43:58,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-13 17:43:58,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824065932] [2021-11-13 17:43:58,922 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:43:58,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 17:43:58,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:43:58,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 17:43:58,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:43:58,924 INFO L87 Difference]: Start difference. First operand 596 states and 791 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:59,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:59,266 INFO L93 Difference]: Finished difference Result 1199 states and 1595 transitions. [2021-11-13 17:43:59,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 17:43:59,267 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2021-11-13 17:43:59,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:59,273 INFO L225 Difference]: With dead ends: 1199 [2021-11-13 17:43:59,274 INFO L226 Difference]: Without dead ends: 612 [2021-11-13 17:43:59,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:43:59,277 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 36 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 205.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.23ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 237.72ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:59,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 1137 Invalid, 57 Unknown, 0 Unchecked, 5.23ms Time], IncrementalHoareTripleChecker [6 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 237.72ms Time] [2021-11-13 17:43:59,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2021-11-13 17:43:59,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2021-11-13 17:43:59,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 466 states have (on average 1.3004291845493563) internal successors, (606), 466 states have internal predecessors, (606), 103 states have call successors, (103), 43 states have call predecessors, (103), 42 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2021-11-13 17:43:59,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 811 transitions. [2021-11-13 17:43:59,322 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 811 transitions. Word has length 50 [2021-11-13 17:43:59,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:59,323 INFO L470 AbstractCegarLoop]: Abstraction has 612 states and 811 transitions. [2021-11-13 17:43:59,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:43:59,324 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 811 transitions. [2021-11-13 17:43:59,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-13 17:43:59,327 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:59,327 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:43:59,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 17:43:59,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:43:59,546 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:59,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:59,547 INFO L85 PathProgramCache]: Analyzing trace with hash 765018923, now seen corresponding path program 2 times [2021-11-13 17:43:59,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:43:59,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900417232] [2021-11-13 17:43:59,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:43:59,548 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:43:59,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:43:59,549 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:43:59,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 17:43:59,878 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 17:43:59,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:43:59,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:43:59,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:44:00,056 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-13 17:44:00,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:44:00,183 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-13 17:44:00,184 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:44:00,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900417232] [2021-11-13 17:44:00,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900417232] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:44:00,185 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:44:00,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-13 17:44:00,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986800521] [2021-11-13 17:44:00,186 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:44:00,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:44:00,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:44:00,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:44:00,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:44:00,189 INFO L87 Difference]: Start difference. First operand 612 states and 811 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:44:00,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:44:00,507 INFO L93 Difference]: Finished difference Result 1214 states and 1609 transitions. [2021-11-13 17:44:00,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:44:00,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 66 [2021-11-13 17:44:00,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:44:00,515 INFO L225 Difference]: With dead ends: 1214 [2021-11-13 17:44:00,516 INFO L226 Difference]: Without dead ends: 611 [2021-11-13 17:44:00,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:44:00,521 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 430 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 204.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.82ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 245.14ms IncrementalHoareTripleChecker+Time [2021-11-13 17:44:00,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 712 Invalid, 67 Unknown, 0 Unchecked, 6.82ms Time], IncrementalHoareTripleChecker [34 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 245.14ms Time] [2021-11-13 17:44:00,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2021-11-13 17:44:00,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 611. [2021-11-13 17:44:00,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 465 states have (on average 1.2946236559139785) internal successors, (602), 465 states have internal predecessors, (602), 103 states have call successors, (103), 43 states have call predecessors, (103), 42 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2021-11-13 17:44:00,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 807 transitions. [2021-11-13 17:44:00,601 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 807 transitions. Word has length 66 [2021-11-13 17:44:00,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:44:00,604 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 807 transitions. [2021-11-13 17:44:00,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:44:00,604 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 807 transitions. [2021-11-13 17:44:00,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-13 17:44:00,607 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:44:00,608 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:44:00,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 17:44:00,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:44:00,826 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:44:00,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:44:00,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1664995114, now seen corresponding path program 1 times [2021-11-13 17:44:00,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:44:00,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388966063] [2021-11-13 17:44:00,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:44:00,828 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:44:00,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:44:00,829 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:44:00,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 17:44:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:01,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 17:44:01,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:44:01,648 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 33 proven. 66 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 17:44:01,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:44:02,250 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 5 proven. 66 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-13 17:44:02,251 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:44:02,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388966063] [2021-11-13 17:44:02,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1388966063] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:44:02,251 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:44:02,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-11-13 17:44:02,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841023076] [2021-11-13 17:44:02,252 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:44:02,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-13 17:44:02,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:44:02,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-13 17:44:02,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2021-11-13 17:44:02,254 INFO L87 Difference]: Start difference. First operand 611 states and 807 transitions. Second operand has 16 states, 16 states have (on average 6.5625) internal successors, (105), 16 states have internal predecessors, (105), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:44:03,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:44:03,061 INFO L93 Difference]: Finished difference Result 1035 states and 1369 transitions. [2021-11-13 17:44:03,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 17:44:03,062 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.5625) internal successors, (105), 16 states have internal predecessors, (105), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 107 [2021-11-13 17:44:03,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:44:03,068 INFO L225 Difference]: With dead ends: 1035 [2021-11-13 17:44:03,068 INFO L226 Difference]: Without dead ends: 619 [2021-11-13 17:44:03,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2021-11-13 17:44:03,071 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 32 mSDsluCounter, 3964 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 612.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 4252 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.73ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 729.93ms IncrementalHoareTripleChecker+Time [2021-11-13 17:44:03,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 4252 Invalid, 295 Unknown, 0 Unchecked, 14.73ms Time], IncrementalHoareTripleChecker [8 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 729.93ms Time] [2021-11-13 17:44:03,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2021-11-13 17:44:03,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2021-11-13 17:44:03,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 473 states have (on average 1.2938689217758985) internal successors, (612), 473 states have internal predecessors, (612), 103 states have call successors, (103), 43 states have call predecessors, (103), 42 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2021-11-13 17:44:03,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 817 transitions. [2021-11-13 17:44:03,123 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 817 transitions. Word has length 107 [2021-11-13 17:44:03,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:44:03,124 INFO L470 AbstractCegarLoop]: Abstraction has 619 states and 817 transitions. [2021-11-13 17:44:03,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.5625) internal successors, (105), 16 states have internal predecessors, (105), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:44:03,124 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 817 transitions. [2021-11-13 17:44:03,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-13 17:44:03,136 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:44:03,136 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:44:03,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 17:44:03,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:44:03,352 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:44:03,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:44:03,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1274453284, now seen corresponding path program 2 times [2021-11-13 17:44:03,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:44:03,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410686985] [2021-11-13 17:44:03,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:44:03,354 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:44:03,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:44:03,355 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:44:03,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 17:44:04,682 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 17:44:04,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:44:04,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:44:04,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:44:05,192 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-11-13 17:44:05,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:44:05,610 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-13 17:44:05,610 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:44:05,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410686985] [2021-11-13 17:44:05,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410686985] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:44:05,611 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:44:05,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-13 17:44:05,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768044493] [2021-11-13 17:44:05,611 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:44:05,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:44:05,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:44:05,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:44:05,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:44:05,613 INFO L87 Difference]: Start difference. First operand 619 states and 817 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:44:05,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:44:05,863 INFO L93 Difference]: Finished difference Result 1836 states and 2454 transitions. [2021-11-13 17:44:05,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:44:05,864 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 115 [2021-11-13 17:44:05,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:44:05,879 INFO L225 Difference]: With dead ends: 1836 [2021-11-13 17:44:05,879 INFO L226 Difference]: Without dead ends: 1221 [2021-11-13 17:44:05,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:44:05,884 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 232 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 109.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.01ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 131.21ms IncrementalHoareTripleChecker+Time [2021-11-13 17:44:05,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 1535 Invalid, 53 Unknown, 0 Unchecked, 8.01ms Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 131.21ms Time] [2021-11-13 17:44:05,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2021-11-13 17:44:05,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1209. [2021-11-13 17:44:05,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 920 states have (on average 1.2934782608695652) internal successors, (1190), 920 states have internal predecessors, (1190), 204 states have call successors, (204), 85 states have call predecessors, (204), 84 states have return successors, (221), 203 states have call predecessors, (221), 203 states have call successors, (221) [2021-11-13 17:44:05,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1615 transitions. [2021-11-13 17:44:05,997 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1615 transitions. Word has length 115 [2021-11-13 17:44:05,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:44:05,999 INFO L470 AbstractCegarLoop]: Abstraction has 1209 states and 1615 transitions. [2021-11-13 17:44:05,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:44:05,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1615 transitions. [2021-11-13 17:44:06,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-13 17:44:06,008 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:44:06,008 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:44:06,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 17:44:06,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:44:06,230 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:44:06,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:44:06,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1880699394, now seen corresponding path program 1 times [2021-11-13 17:44:06,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:44:06,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449592398] [2021-11-13 17:44:06,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:44:06,232 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:44:06,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:44:06,232 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:44:06,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 17:44:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:06,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 17:44:06,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:44:07,278 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-13 17:44:07,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:44:08,063 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-13 17:44:08,064 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:44:08,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449592398] [2021-11-13 17:44:08,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [449592398] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:44:08,064 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:44:08,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2021-11-13 17:44:08,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059044163] [2021-11-13 17:44:08,065 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:44:08,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 17:44:08,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:44:08,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 17:44:08,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:44:08,067 INFO L87 Difference]: Start difference. First operand 1209 states and 1615 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-13 17:44:08,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:44:08,441 INFO L93 Difference]: Finished difference Result 2409 states and 3243 transitions. [2021-11-13 17:44:08,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 17:44:08,442 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) Word has length 166 [2021-11-13 17:44:08,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:44:08,454 INFO L225 Difference]: With dead ends: 2409 [2021-11-13 17:44:08,455 INFO L226 Difference]: Without dead ends: 1209 [2021-11-13 17:44:08,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:44:08,462 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 16 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 164.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2452 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.89ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 184.17ms IncrementalHoareTripleChecker+Time [2021-11-13 17:44:08,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 2452 Invalid, 72 Unknown, 0 Unchecked, 7.89ms Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 184.17ms Time] [2021-11-13 17:44:08,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2021-11-13 17:44:08,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1209. [2021-11-13 17:44:08,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 920 states have (on average 1.2804347826086957) internal successors, (1178), 920 states have internal predecessors, (1178), 204 states have call successors, (204), 85 states have call predecessors, (204), 84 states have return successors, (221), 203 states have call predecessors, (221), 203 states have call successors, (221) [2021-11-13 17:44:08,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1603 transitions. [2021-11-13 17:44:08,583 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1603 transitions. Word has length 166 [2021-11-13 17:44:08,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:44:08,584 INFO L470 AbstractCegarLoop]: Abstraction has 1209 states and 1603 transitions. [2021-11-13 17:44:08,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-13 17:44:08,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1603 transitions. [2021-11-13 17:44:08,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-13 17:44:08,592 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:44:08,593 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:44:08,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 17:44:08,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:44:08,818 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:44:08,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:44:08,819 INFO L85 PathProgramCache]: Analyzing trace with hash -313383669, now seen corresponding path program 1 times [2021-11-13 17:44:08,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:44:08,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375720885] [2021-11-13 17:44:08,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:44:08,820 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:44:08,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:44:08,821 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:44:08,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 17:44:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:09,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-13 17:44:09,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:44:10,277 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-13 17:44:10,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:44:12,829 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-13 17:44:12,829 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:44:12,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375720885] [2021-11-13 17:44:12,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375720885] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:44:12,830 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:44:12,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-11-13 17:44:12,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621034377] [2021-11-13 17:44:12,831 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:44:12,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-13 17:44:12,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:44:12,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-13 17:44:12,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2021-11-13 17:44:12,833 INFO L87 Difference]: Start difference. First operand 1209 states and 1603 transitions. Second operand has 24 states, 24 states have (on average 4.375) internal successors, (105), 18 states have internal predecessors, (105), 8 states have call successors, (16), 2 states have call predecessors, (16), 7 states have return successors, (18), 13 states have call predecessors, (18), 7 states have call successors, (18) [2021-11-13 17:44:14,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:44:14,004 INFO L93 Difference]: Finished difference Result 2929 states and 3970 transitions. [2021-11-13 17:44:14,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 17:44:14,006 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.375) internal successors, (105), 18 states have internal predecessors, (105), 8 states have call successors, (16), 2 states have call predecessors, (16), 7 states have return successors, (18), 13 states have call predecessors, (18), 7 states have call successors, (18) Word has length 172 [2021-11-13 17:44:14,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:44:14,022 INFO L225 Difference]: With dead ends: 2929 [2021-11-13 17:44:14,022 INFO L226 Difference]: Without dead ends: 1729 [2021-11-13 17:44:14,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2021-11-13 17:44:14,028 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 140 mSDsluCounter, 6942 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 692.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 7347 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.31ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 791.00ms IncrementalHoareTripleChecker+Time [2021-11-13 17:44:14,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 7347 Invalid, 241 Unknown, 0 Unchecked, 21.31ms Time], IncrementalHoareTripleChecker [1 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 791.00ms Time] [2021-11-13 17:44:14,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2021-11-13 17:44:14,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1197. [2021-11-13 17:44:14,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1197 states, 908 states have (on average 1.2709251101321586) internal successors, (1154), 908 states have internal predecessors, (1154), 204 states have call successors, (204), 85 states have call predecessors, (204), 84 states have return successors, (221), 203 states have call predecessors, (221), 203 states have call successors, (221) [2021-11-13 17:44:14,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1579 transitions. [2021-11-13 17:44:14,162 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1579 transitions. Word has length 172 [2021-11-13 17:44:14,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:44:14,163 INFO L470 AbstractCegarLoop]: Abstraction has 1197 states and 1579 transitions. [2021-11-13 17:44:14,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.375) internal successors, (105), 18 states have internal predecessors, (105), 8 states have call successors, (16), 2 states have call predecessors, (16), 7 states have return successors, (18), 13 states have call predecessors, (18), 7 states have call successors, (18) [2021-11-13 17:44:14,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1579 transitions. [2021-11-13 17:44:14,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-13 17:44:14,169 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:44:14,170 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:44:14,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 17:44:14,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:44:14,394 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:44:14,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:44:14,395 INFO L85 PathProgramCache]: Analyzing trace with hash -831936403, now seen corresponding path program 1 times [2021-11-13 17:44:14,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:44:14,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447658636] [2021-11-13 17:44:14,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:44:14,396 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:44:14,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:44:14,397 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:44:14,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 17:44:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:14,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-13 17:44:14,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:44:15,812 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-13 17:44:15,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:44:17,857 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-13 17:44:17,858 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:44:17,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447658636] [2021-11-13 17:44:17,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447658636] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:44:17,858 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:44:17,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-11-13 17:44:17,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766207390] [2021-11-13 17:44:17,859 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:44:17,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-13 17:44:17,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:44:17,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-13 17:44:17,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2021-11-13 17:44:17,863 INFO L87 Difference]: Start difference. First operand 1197 states and 1579 transitions. Second operand has 24 states, 24 states have (on average 4.333333333333333) internal successors, (104), 18 states have internal predecessors, (104), 8 states have call successors, (16), 2 states have call predecessors, (16), 7 states have return successors, (18), 13 states have call predecessors, (18), 7 states have call successors, (18) [2021-11-13 17:44:18,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:44:18,979 INFO L93 Difference]: Finished difference Result 2971 states and 4024 transitions. [2021-11-13 17:44:18,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 17:44:18,981 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.333333333333333) internal successors, (104), 18 states have internal predecessors, (104), 8 states have call successors, (16), 2 states have call predecessors, (16), 7 states have return successors, (18), 13 states have call predecessors, (18), 7 states have call successors, (18) Word has length 171 [2021-11-13 17:44:18,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:44:18,997 INFO L225 Difference]: With dead ends: 2971 [2021-11-13 17:44:18,997 INFO L226 Difference]: Without dead ends: 1783 [2021-11-13 17:44:19,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2021-11-13 17:44:19,004 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 139 mSDsluCounter, 7080 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 615.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 7492 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.92ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 707.30ms IncrementalHoareTripleChecker+Time [2021-11-13 17:44:19,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 7492 Invalid, 224 Unknown, 0 Unchecked, 15.92ms Time], IncrementalHoareTripleChecker [1 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 707.30ms Time] [2021-11-13 17:44:19,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2021-11-13 17:44:19,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1191. [2021-11-13 17:44:19,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1191 states, 902 states have (on average 1.2594235033259424) internal successors, (1136), 902 states have internal predecessors, (1136), 204 states have call successors, (204), 85 states have call predecessors, (204), 84 states have return successors, (221), 203 states have call predecessors, (221), 203 states have call successors, (221) [2021-11-13 17:44:19,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 1561 transitions. [2021-11-13 17:44:19,150 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 1561 transitions. Word has length 171 [2021-11-13 17:44:19,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:44:19,151 INFO L470 AbstractCegarLoop]: Abstraction has 1191 states and 1561 transitions. [2021-11-13 17:44:19,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.333333333333333) internal successors, (104), 18 states have internal predecessors, (104), 8 states have call successors, (16), 2 states have call predecessors, (16), 7 states have return successors, (18), 13 states have call predecessors, (18), 7 states have call successors, (18) [2021-11-13 17:44:19,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 1561 transitions. [2021-11-13 17:44:19,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-13 17:44:19,159 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:44:19,160 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:44:19,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-13 17:44:19,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:44:19,386 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:44:19,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:44:19,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1635967564, now seen corresponding path program 1 times [2021-11-13 17:44:19,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:44:19,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [455954960] [2021-11-13 17:44:19,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:44:19,388 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:44:19,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:44:19,390 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:44:19,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-13 17:44:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:20,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 17:44:20,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:44:20,476 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-13 17:44:20,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:44:20,985 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-13 17:44:20,985 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:44:20,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [455954960] [2021-11-13 17:44:20,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [455954960] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:44:20,986 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:44:20,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-13 17:44:20,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675494583] [2021-11-13 17:44:20,987 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:44:20,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:44:20,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:44:20,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:44:20,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:44:20,989 INFO L87 Difference]: Start difference. First operand 1191 states and 1561 transitions. Second operand has 7 states, 5 states have (on average 23.6) internal successors, (118), 7 states have internal predecessors, (118), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:44:23,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:44:23,191 INFO L93 Difference]: Finished difference Result 3049 states and 4231 transitions. [2021-11-13 17:44:23,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:44:23,193 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 23.6) internal successors, (118), 7 states have internal predecessors, (118), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 208 [2021-11-13 17:44:23,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:44:23,210 INFO L225 Difference]: With dead ends: 3049 [2021-11-13 17:44:23,211 INFO L226 Difference]: Without dead ends: 1867 [2021-11-13 17:44:23,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:44:23,217 INFO L933 BasicCegarLoop]: 429 mSDtfsCounter, 130 mSDsluCounter, 1830 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1939.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.51ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2018.50ms IncrementalHoareTripleChecker+Time [2021-11-13 17:44:23,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 2259 Invalid, 78 Unknown, 0 Unchecked, 5.51ms Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 2018.50ms Time] [2021-11-13 17:44:23,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1867 states. [2021-11-13 17:44:23,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1867 to 1215. [2021-11-13 17:44:23,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 920 states have (on average 1.2608695652173914) internal successors, (1160), 926 states have internal predecessors, (1160), 204 states have call successors, (204), 85 states have call predecessors, (204), 90 states have return successors, (245), 203 states have call predecessors, (245), 203 states have call successors, (245) [2021-11-13 17:44:23,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1609 transitions. [2021-11-13 17:44:23,338 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1609 transitions. Word has length 208 [2021-11-13 17:44:23,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:44:23,339 INFO L470 AbstractCegarLoop]: Abstraction has 1215 states and 1609 transitions. [2021-11-13 17:44:23,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 23.6) internal successors, (118), 7 states have internal predecessors, (118), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:44:23,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1609 transitions. [2021-11-13 17:44:23,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-13 17:44:23,348 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:44:23,349 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:44:23,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-13 17:44:23,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:44:23,562 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:44:23,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:44:23,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1643836534, now seen corresponding path program 1 times [2021-11-13 17:44:23,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:44:23,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2030098994] [2021-11-13 17:44:23,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:44:23,564 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:44:23,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:44:23,566 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:44:23,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-13 17:44:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:24,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 17:44:24,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:44:24,692 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-13 17:44:24,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:44:25,361 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-13 17:44:25,361 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:44:25,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2030098994] [2021-11-13 17:44:25,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2030098994] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:44:25,362 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:44:25,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-11-13 17:44:25,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368073235] [2021-11-13 17:44:25,363 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:44:25,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:44:25,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:44:25,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:44:25,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:44:25,364 INFO L87 Difference]: Start difference. First operand 1215 states and 1609 transitions. Second operand has 9 states, 7 states have (on average 17.142857142857142) internal successors, (120), 9 states have internal predecessors, (120), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:44:28,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:44:28,946 INFO L93 Difference]: Finished difference Result 3097 states and 4297 transitions. [2021-11-13 17:44:28,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:44:28,947 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 17.142857142857142) internal successors, (120), 9 states have internal predecessors, (120), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 209 [2021-11-13 17:44:28,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:44:28,965 INFO L225 Difference]: With dead ends: 3097 [2021-11-13 17:44:28,966 INFO L226 Difference]: Without dead ends: 1891 [2021-11-13 17:44:28,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:44:28,972 INFO L933 BasicCegarLoop]: 429 mSDtfsCounter, 264 mSDsluCounter, 2392 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3229.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 2821 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.47ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3415.20ms IncrementalHoareTripleChecker+Time [2021-11-13 17:44:28,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 2821 Invalid, 206 Unknown, 0 Unchecked, 7.47ms Time], IncrementalHoareTripleChecker [38 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 3415.20ms Time] [2021-11-13 17:44:28,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2021-11-13 17:44:29,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1227. [2021-11-13 17:44:29,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 932 states have (on average 1.2703862660944205) internal successors, (1184), 938 states have internal predecessors, (1184), 204 states have call successors, (204), 85 states have call predecessors, (204), 90 states have return successors, (245), 203 states have call predecessors, (245), 203 states have call successors, (245) [2021-11-13 17:44:29,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1633 transitions. [2021-11-13 17:44:29,114 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1633 transitions. Word has length 209 [2021-11-13 17:44:29,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:44:29,118 INFO L470 AbstractCegarLoop]: Abstraction has 1227 states and 1633 transitions. [2021-11-13 17:44:29,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 17.142857142857142) internal successors, (120), 9 states have internal predecessors, (120), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:44:29,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1633 transitions. [2021-11-13 17:44:29,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-13 17:44:29,126 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:44:29,128 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:44:29,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-13 17:44:29,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:44:29,350 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:44:29,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:44:29,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1887774604, now seen corresponding path program 2 times [2021-11-13 17:44:29,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:44:29,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174334810] [2021-11-13 17:44:29,352 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:44:29,352 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:44:29,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:44:29,354 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:44:29,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-13 17:44:29,805 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 17:44:29,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:44:29,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 17:44:29,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:44:30,255 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-13 17:44:30,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:44:30,820 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-13 17:44:30,820 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:44:30,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1174334810] [2021-11-13 17:44:30,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1174334810] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:44:30,821 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:44:30,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-13 17:44:30,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605196966] [2021-11-13 17:44:30,822 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:44:30,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:44:30,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:44:30,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:44:30,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:44:30,826 INFO L87 Difference]: Start difference. First operand 1227 states and 1633 transitions. Second operand has 7 states, 5 states have (on average 23.8) internal successors, (119), 7 states have internal predecessors, (119), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:44:31,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:44:31,712 INFO L93 Difference]: Finished difference Result 3133 states and 4399 transitions. [2021-11-13 17:44:31,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:44:31,714 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 23.8) internal successors, (119), 7 states have internal predecessors, (119), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 210 [2021-11-13 17:44:31,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:44:31,735 INFO L225 Difference]: With dead ends: 3133 [2021-11-13 17:44:31,735 INFO L226 Difference]: Without dead ends: 1915 [2021-11-13 17:44:31,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:44:31,741 INFO L933 BasicCegarLoop]: 430 mSDtfsCounter, 129 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 689.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 2263 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.79ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 736.43ms IncrementalHoareTripleChecker+Time [2021-11-13 17:44:31,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 2263 Invalid, 73 Unknown, 0 Unchecked, 6.79ms Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 736.43ms Time] [2021-11-13 17:44:31,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2021-11-13 17:44:31,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1233. [2021-11-13 17:44:31,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1233 states, 938 states have (on average 1.275053304904051) internal successors, (1196), 944 states have internal predecessors, (1196), 204 states have call successors, (204), 85 states have call predecessors, (204), 90 states have return successors, (245), 203 states have call predecessors, (245), 203 states have call successors, (245) [2021-11-13 17:44:31,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1645 transitions. [2021-11-13 17:44:31,884 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1645 transitions. Word has length 210 [2021-11-13 17:44:31,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:44:31,885 INFO L470 AbstractCegarLoop]: Abstraction has 1233 states and 1645 transitions. [2021-11-13 17:44:31,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 23.8) internal successors, (119), 7 states have internal predecessors, (119), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:44:31,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1645 transitions. [2021-11-13 17:44:31,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-13 17:44:31,894 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:44:31,894 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:44:31,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-13 17:44:32,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:44:32,110 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:44:32,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:44:32,111 INFO L85 PathProgramCache]: Analyzing trace with hash 92345848, now seen corresponding path program 1 times [2021-11-13 17:44:32,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:44:32,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759251471] [2021-11-13 17:44:32,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:44:32,112 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:44:32,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:44:32,114 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:44:32,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-13 17:44:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:32,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 17:44:32,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:44:33,289 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-11-13 17:44:33,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:44:34,091 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-11-13 17:44:34,091 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:44:34,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759251471] [2021-11-13 17:44:34,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [759251471] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:44:34,092 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:44:34,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-11-13 17:44:34,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733033986] [2021-11-13 17:44:34,092 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:44:34,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 17:44:34,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:44:34,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 17:44:34,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:44:34,094 INFO L87 Difference]: Start difference. First operand 1233 states and 1645 transitions. Second operand has 11 states, 9 states have (on average 13.666666666666666) internal successors, (123), 11 states have internal predecessors, (123), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:44:40,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:44:40,001 INFO L93 Difference]: Finished difference Result 3175 states and 4543 transitions. [2021-11-13 17:44:40,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:44:40,012 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 13.666666666666666) internal successors, (123), 11 states have internal predecessors, (123), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 211 [2021-11-13 17:44:40,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:44:40,033 INFO L225 Difference]: With dead ends: 3175 [2021-11-13 17:44:40,034 INFO L226 Difference]: Without dead ends: 1951 [2021-11-13 17:44:40,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-11-13 17:44:40,041 INFO L933 BasicCegarLoop]: 430 mSDtfsCounter, 151 mSDsluCounter, 2679 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5377.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 3109 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.71ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5678.92ms IncrementalHoareTripleChecker+Time [2021-11-13 17:44:40,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 3109 Invalid, 272 Unknown, 0 Unchecked, 8.71ms Time], IncrementalHoareTripleChecker [5 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 5678.92ms Time] [2021-11-13 17:44:40,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2021-11-13 17:44:40,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 1239. [2021-11-13 17:44:40,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 944 states have (on average 1.2796610169491525) internal successors, (1208), 950 states have internal predecessors, (1208), 204 states have call successors, (204), 85 states have call predecessors, (204), 90 states have return successors, (245), 203 states have call predecessors, (245), 203 states have call successors, (245) [2021-11-13 17:44:40,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1657 transitions. [2021-11-13 17:44:40,201 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1657 transitions. Word has length 211 [2021-11-13 17:44:40,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:44:40,203 INFO L470 AbstractCegarLoop]: Abstraction has 1239 states and 1657 transitions. [2021-11-13 17:44:40,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 13.666666666666666) internal successors, (123), 11 states have internal predecessors, (123), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:44:40,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1657 transitions. [2021-11-13 17:44:40,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-13 17:44:40,212 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:44:40,212 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:44:40,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-13 17:44:40,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:44:40,431 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:44:40,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:44:40,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1706370162, now seen corresponding path program 2 times [2021-11-13 17:44:40,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:44:40,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606982429] [2021-11-13 17:44:40,433 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:44:40,433 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:44:40,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:44:40,435 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:44:40,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-13 17:44:43,152 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 17:44:43,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:44:43,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-13 17:44:43,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:44:44,312 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 35 proven. 28 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2021-11-13 17:44:44,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:44:47,287 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-11-13 17:44:47,287 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:44:47,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606982429] [2021-11-13 17:44:47,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606982429] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 17:44:47,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 17:44:47,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [9] total 18 [2021-11-13 17:44:47,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109840416] [2021-11-13 17:44:47,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:44:47,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 17:44:47,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:44:47,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 17:44:47,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2021-11-13 17:44:47,291 INFO L87 Difference]: Start difference. First operand 1239 states and 1657 transitions. Second operand has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 7 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2021-11-13 17:44:52,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:44:52,463 INFO L93 Difference]: Finished difference Result 3922 states and 5263 transitions. [2021-11-13 17:44:52,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-13 17:44:52,464 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 7 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) Word has length 212 [2021-11-13 17:44:52,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:44:52,492 INFO L225 Difference]: With dead ends: 3922 [2021-11-13 17:44:52,492 INFO L226 Difference]: Without dead ends: 3292 [2021-11-13 17:44:52,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 406 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=206, Invalid=550, Unknown=0, NotChecked=0, Total=756 [2021-11-13 17:44:52,497 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 1912 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3738.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1933 SdHoareTripleChecker+Valid, 1932 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.81ms SdHoareTripleChecker+Time, 556 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4239.52ms IncrementalHoareTripleChecker+Time [2021-11-13 17:44:52,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1933 Valid, 1932 Invalid, 1332 Unknown, 0 Unchecked, 21.81ms Time], IncrementalHoareTripleChecker [556 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 4239.52ms Time] [2021-11-13 17:44:52,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3292 states. [2021-11-13 17:44:52,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3292 to 3105. [2021-11-13 17:44:52,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3105 states, 2357 states have (on average 1.2808655070004242) internal successors, (3019), 2381 states have internal predecessors, (3019), 507 states have call successors, (507), 211 states have call predecessors, (507), 240 states have return successors, (656), 512 states have call predecessors, (656), 506 states have call successors, (656) [2021-11-13 17:44:52,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3105 states to 3105 states and 4182 transitions. [2021-11-13 17:44:52,846 INFO L78 Accepts]: Start accepts. Automaton has 3105 states and 4182 transitions. Word has length 212 [2021-11-13 17:44:52,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:44:52,847 INFO L470 AbstractCegarLoop]: Abstraction has 3105 states and 4182 transitions. [2021-11-13 17:44:52,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 7 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2021-11-13 17:44:52,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3105 states and 4182 transitions. [2021-11-13 17:44:52,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-13 17:44:52,862 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:44:52,863 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:44:52,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-13 17:44:53,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:44:53,078 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:44:53,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:44:53,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1365199469, now seen corresponding path program 1 times [2021-11-13 17:44:53,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:44:53,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40884538] [2021-11-13 17:44:53,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:44:53,080 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:44:53,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:44:53,082 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:44:53,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-13 17:44:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:53,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 792 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 17:44:53,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:44:54,347 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-11-13 17:44:54,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:44:55,332 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-11-13 17:44:55,332 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:44:55,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40884538] [2021-11-13 17:44:55,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40884538] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:44:55,333 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:44:55,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-11-13 17:44:55,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422793410] [2021-11-13 17:44:55,334 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:44:55,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:44:55,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:44:55,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:44:55,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:44:55,335 INFO L87 Difference]: Start difference. First operand 3105 states and 4182 transitions. Second operand has 13 states, 11 states have (on average 11.727272727272727) internal successors, (129), 13 states have internal predecessors, (129), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:45:04,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:45:04,218 INFO L93 Difference]: Finished difference Result 8032 states and 11689 transitions. [2021-11-13 17:45:04,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 17:45:04,231 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 11.727272727272727) internal successors, (129), 13 states have internal predecessors, (129), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 214 [2021-11-13 17:45:04,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:45:04,275 INFO L225 Difference]: With dead ends: 8032 [2021-11-13 17:45:04,276 INFO L226 Difference]: Without dead ends: 4936 [2021-11-13 17:45:04,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2021-11-13 17:45:04,289 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 186 mSDsluCounter, 2671 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8022.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.94ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8456.96ms IncrementalHoareTripleChecker+Time [2021-11-13 17:45:04,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 3102 Invalid, 394 Unknown, 0 Unchecked, 9.94ms Time], IncrementalHoareTripleChecker [9 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 8456.96ms Time] [2021-11-13 17:45:04,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4936 states. [2021-11-13 17:45:04,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4936 to 3120. [2021-11-13 17:45:04,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 2372 states have (on average 1.2854131534569984) internal successors, (3049), 2396 states have internal predecessors, (3049), 507 states have call successors, (507), 211 states have call predecessors, (507), 240 states have return successors, (656), 512 states have call predecessors, (656), 506 states have call successors, (656) [2021-11-13 17:45:04,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 4212 transitions. [2021-11-13 17:45:04,761 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 4212 transitions. Word has length 214 [2021-11-13 17:45:04,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:45:04,762 INFO L470 AbstractCegarLoop]: Abstraction has 3120 states and 4212 transitions. [2021-11-13 17:45:04,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 11.727272727272727) internal successors, (129), 13 states have internal predecessors, (129), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:45:04,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 4212 transitions. [2021-11-13 17:45:04,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-13 17:45:04,776 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:04,776 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:45:04,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-13 17:45:05,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:45:05,003 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:45:05,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:05,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1481772989, now seen corresponding path program 1 times [2021-11-13 17:45:05,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:45:05,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106382071] [2021-11-13 17:45:05,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:45:05,004 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:45:05,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:45:05,005 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:45:05,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-13 17:45:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:05,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:45:05,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:45:06,065 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2021-11-13 17:45:06,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:45:06,617 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2021-11-13 17:45:06,617 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:45:06,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1106382071] [2021-11-13 17:45:06,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1106382071] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:45:06,618 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:45:06,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 17:45:06,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590039932] [2021-11-13 17:45:06,618 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:45:06,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:45:06,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:45:06,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:45:06,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:45:06,620 INFO L87 Difference]: Start difference. First operand 3120 states and 4212 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-13 17:45:07,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:45:07,147 INFO L93 Difference]: Finished difference Result 7507 states and 10297 transitions. [2021-11-13 17:45:07,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:45:07,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 227 [2021-11-13 17:45:07,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:45:07,191 INFO L225 Difference]: With dead ends: 7507 [2021-11-13 17:45:07,199 INFO L226 Difference]: Without dead ends: 4396 [2021-11-13 17:45:07,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:45:07,210 INFO L933 BasicCegarLoop]: 408 mSDtfsCounter, 232 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 111.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.41ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 125.54ms IncrementalHoareTripleChecker+Time [2021-11-13 17:45:07,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 677 Invalid, 24 Unknown, 0 Unchecked, 2.41ms Time], IncrementalHoareTripleChecker [21 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 125.54ms Time] [2021-11-13 17:45:07,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4396 states. [2021-11-13 17:45:07,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4396 to 3090. [2021-11-13 17:45:07,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3090 states, 2357 states have (on average 1.2808655070004242) internal successors, (3019), 2381 states have internal predecessors, (3019), 492 states have call successors, (492), 211 states have call predecessors, (492), 240 states have return successors, (626), 497 states have call predecessors, (626), 491 states have call successors, (626) [2021-11-13 17:45:07,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3090 states to 3090 states and 4137 transitions. [2021-11-13 17:45:07,584 INFO L78 Accepts]: Start accepts. Automaton has 3090 states and 4137 transitions. Word has length 227 [2021-11-13 17:45:07,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:45:07,585 INFO L470 AbstractCegarLoop]: Abstraction has 3090 states and 4137 transitions. [2021-11-13 17:45:07,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-13 17:45:07,585 INFO L276 IsEmpty]: Start isEmpty. Operand 3090 states and 4137 transitions. [2021-11-13 17:45:07,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-13 17:45:07,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:07,600 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:45:07,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-13 17:45:07,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:45:07,814 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:45:07,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:07,815 INFO L85 PathProgramCache]: Analyzing trace with hash 954886653, now seen corresponding path program 1 times [2021-11-13 17:45:07,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:45:07,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1576128342] [2021-11-13 17:45:07,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:45:07,816 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:45:07,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:45:07,818 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:45:07,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-13 17:45:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:08,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:45:08,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:45:08,884 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2021-11-13 17:45:08,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:45:09,469 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2021-11-13 17:45:09,470 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:45:09,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1576128342] [2021-11-13 17:45:09,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1576128342] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 17:45:09,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 17:45:09,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-13 17:45:09,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505161840] [2021-11-13 17:45:09,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:45:09,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:45:09,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:45:09,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:45:09,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:45:09,473 INFO L87 Difference]: Start difference. First operand 3090 states and 4137 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 17:45:10,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:45:10,792 INFO L93 Difference]: Finished difference Result 7507 states and 10267 transitions. [2021-11-13 17:45:10,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:45:10,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 227 [2021-11-13 17:45:10,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:45:10,813 INFO L225 Difference]: With dead ends: 7507 [2021-11-13 17:45:10,813 INFO L226 Difference]: Without dead ends: 4426 [2021-11-13 17:45:10,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 447 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:45:10,824 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 118 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 939.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1469 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.93ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 984.40ms IncrementalHoareTripleChecker+Time [2021-11-13 17:45:10,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 1469 Invalid, 28 Unknown, 0 Unchecked, 2.93ms Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 984.40ms Time] [2021-11-13 17:45:10,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4426 states. [2021-11-13 17:45:11,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4426 to 3120. [2021-11-13 17:45:11,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 2372 states have (on average 1.279089376053963) internal successors, (3034), 2411 states have internal predecessors, (3034), 492 states have call successors, (492), 211 states have call predecessors, (492), 255 states have return successors, (656), 497 states have call predecessors, (656), 491 states have call successors, (656) [2021-11-13 17:45:11,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 4182 transitions. [2021-11-13 17:45:11,209 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 4182 transitions. Word has length 227 [2021-11-13 17:45:11,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:45:11,210 INFO L470 AbstractCegarLoop]: Abstraction has 3120 states and 4182 transitions. [2021-11-13 17:45:11,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 17:45:11,211 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 4182 transitions. [2021-11-13 17:45:11,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-13 17:45:11,220 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:11,221 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:45:11,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-13 17:45:11,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:45:11,426 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:45:11,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:11,427 INFO L85 PathProgramCache]: Analyzing trace with hash -248058887, now seen corresponding path program 1 times [2021-11-13 17:45:11,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:45:11,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357585752] [2021-11-13 17:45:11,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:45:11,428 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:45:11,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:45:11,428 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:45:11,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-13 17:45:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:12,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 769 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 17:45:12,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:45:12,488 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2021-11-13 17:45:12,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:45:13,241 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2021-11-13 17:45:13,242 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:45:13,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357585752] [2021-11-13 17:45:13,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357585752] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:45:13,242 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:45:13,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-11-13 17:45:13,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259754582] [2021-11-13 17:45:13,243 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:45:13,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:45:13,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:45:13,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:45:13,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:45:13,244 INFO L87 Difference]: Start difference. First operand 3120 states and 4182 transitions. Second operand has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 9 states have internal predecessors, (140), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-13 17:45:16,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:45:16,450 INFO L93 Difference]: Finished difference Result 7582 states and 10387 transitions. [2021-11-13 17:45:16,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:45:16,451 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 9 states have internal predecessors, (140), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 4 states have call successors, (22) Word has length 228 [2021-11-13 17:45:16,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:45:16,470 INFO L225 Difference]: With dead ends: 7582 [2021-11-13 17:45:16,471 INFO L226 Difference]: Without dead ends: 4471 [2021-11-13 17:45:16,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:45:16,483 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 250 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2770.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.82ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2890.45ms IncrementalHoareTripleChecker+Time [2021-11-13 17:45:16,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 1464 Invalid, 84 Unknown, 0 Unchecked, 3.82ms Time], IncrementalHoareTripleChecker [27 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 2890.45ms Time] [2021-11-13 17:45:16,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4471 states. [2021-11-13 17:45:16,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4471 to 3135. [2021-11-13 17:45:16,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 2387 states have (on average 1.2836196062002514) internal successors, (3064), 2426 states have internal predecessors, (3064), 492 states have call successors, (492), 211 states have call predecessors, (492), 255 states have return successors, (656), 497 states have call predecessors, (656), 491 states have call successors, (656) [2021-11-13 17:45:16,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 4212 transitions. [2021-11-13 17:45:16,898 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 4212 transitions. Word has length 228 [2021-11-13 17:45:16,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:45:16,899 INFO L470 AbstractCegarLoop]: Abstraction has 3135 states and 4212 transitions. [2021-11-13 17:45:16,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 9 states have internal predecessors, (140), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-13 17:45:16,900 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 4212 transitions. [2021-11-13 17:45:16,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-13 17:45:16,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:16,912 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:45:16,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-13 17:45:17,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:45:17,126 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:45:17,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:17,127 INFO L85 PathProgramCache]: Analyzing trace with hash -171469545, now seen corresponding path program 2 times [2021-11-13 17:45:17,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:45:17,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [65141597] [2021-11-13 17:45:17,128 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:45:17,128 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:45:17,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:45:17,129 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:45:17,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-13 17:45:17,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 17:45:17,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:45:17,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:45:17,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:45:18,053 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2021-11-13 17:45:18,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:45:18,501 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2021-11-13 17:45:18,502 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:45:18,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [65141597] [2021-11-13 17:45:18,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [65141597] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:45:18,502 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:45:18,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-13 17:45:18,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128813352] [2021-11-13 17:45:18,502 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:45:18,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:45:18,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:45:18,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:45:18,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:45:18,504 INFO L87 Difference]: Start difference. First operand 3135 states and 4212 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2021-11-13 17:45:19,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:45:19,020 INFO L93 Difference]: Finished difference Result 6558 states and 8899 transitions. [2021-11-13 17:45:19,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:45:19,021 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 215 [2021-11-13 17:45:19,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:45:19,035 INFO L225 Difference]: With dead ends: 6558 [2021-11-13 17:45:19,035 INFO L226 Difference]: Without dead ends: 3432 [2021-11-13 17:45:19,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:45:19,048 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 29 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 171.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.85ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 197.64ms IncrementalHoareTripleChecker+Time [2021-11-13 17:45:19,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 1079 Invalid, 52 Unknown, 0 Unchecked, 2.85ms Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 197.64ms Time] [2021-11-13 17:45:19,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2021-11-13 17:45:19,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 3255. [2021-11-13 17:45:19,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3255 states, 2507 states have (on average 1.2927802153968888) internal successors, (3241), 2546 states have internal predecessors, (3241), 492 states have call successors, (492), 211 states have call predecessors, (492), 255 states have return successors, (656), 497 states have call predecessors, (656), 491 states have call successors, (656) [2021-11-13 17:45:19,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4389 transitions. [2021-11-13 17:45:19,425 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4389 transitions. Word has length 215 [2021-11-13 17:45:19,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:45:19,426 INFO L470 AbstractCegarLoop]: Abstraction has 3255 states and 4389 transitions. [2021-11-13 17:45:19,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2021-11-13 17:45:19,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4389 transitions. [2021-11-13 17:45:19,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-13 17:45:19,436 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:19,436 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:45:19,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-13 17:45:19,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:45:19,658 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:45:19,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:19,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1697357260, now seen corresponding path program 1 times [2021-11-13 17:45:19,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:45:19,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1777561788] [2021-11-13 17:45:19,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:45:19,660 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:45:19,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:45:19,661 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:45:19,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-13 17:45:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:20,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 17:45:20,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:45:20,866 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-11-13 17:45:20,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:45:22,156 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-11-13 17:45:22,157 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:45:22,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1777561788] [2021-11-13 17:45:22,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1777561788] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:45:22,157 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:45:22,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-11-13 17:45:22,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47644627] [2021-11-13 17:45:22,158 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:45:22,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 17:45:22,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:45:22,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 17:45:22,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-11-13 17:45:22,159 INFO L87 Difference]: Start difference. First operand 3255 states and 4389 transitions. Second operand has 15 states, 13 states have (on average 10.23076923076923) internal successors, (133), 15 states have internal predecessors, (133), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:45:34,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:45:34,538 INFO L93 Difference]: Finished difference Result 8302 states and 11878 transitions. [2021-11-13 17:45:34,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 17:45:34,542 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 10.23076923076923) internal successors, (133), 15 states have internal predecessors, (133), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 216 [2021-11-13 17:45:34,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:45:34,569 INFO L225 Difference]: With dead ends: 8302 [2021-11-13 17:45:34,569 INFO L226 Difference]: Without dead ends: 5056 [2021-11-13 17:45:34,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2021-11-13 17:45:34,584 INFO L933 BasicCegarLoop]: 426 mSDtfsCounter, 192 mSDsluCounter, 3493 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11374.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 3919 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.36ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11943.56ms IncrementalHoareTripleChecker+Time [2021-11-13 17:45:34,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 3919 Invalid, 441 Unknown, 0 Unchecked, 28.36ms Time], IncrementalHoareTripleChecker [14 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 11943.56ms Time] [2021-11-13 17:45:34,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5056 states. [2021-11-13 17:45:35,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5056 to 3270. [2021-11-13 17:45:35,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3270 states, 2522 states have (on average 1.2969865186360032) internal successors, (3271), 2561 states have internal predecessors, (3271), 492 states have call successors, (492), 211 states have call predecessors, (492), 255 states have return successors, (656), 497 states have call predecessors, (656), 491 states have call successors, (656) [2021-11-13 17:45:35,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 4419 transitions. [2021-11-13 17:45:35,026 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 4419 transitions. Word has length 216 [2021-11-13 17:45:35,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:45:35,027 INFO L470 AbstractCegarLoop]: Abstraction has 3270 states and 4419 transitions. [2021-11-13 17:45:35,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 10.23076923076923) internal successors, (133), 15 states have internal predecessors, (133), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:45:35,028 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 4419 transitions. [2021-11-13 17:45:35,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-11-13 17:45:35,037 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:35,037 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:45:35,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-13 17:45:35,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:45:35,255 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:45:35,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:35,256 INFO L85 PathProgramCache]: Analyzing trace with hash 614679883, now seen corresponding path program 1 times [2021-11-13 17:45:35,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:45:35,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120007712] [2021-11-13 17:45:35,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:45:35,257 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:45:35,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:45:35,259 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:45:35,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-13 17:45:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:35,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 792 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 17:45:35,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:45:36,455 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-11-13 17:45:36,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:45:37,252 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-11-13 17:45:37,252 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:45:37,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120007712] [2021-11-13 17:45:37,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1120007712] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:45:37,253 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:45:37,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-11-13 17:45:37,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292381549] [2021-11-13 17:45:37,254 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:45:37,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 17:45:37,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:45:37,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 17:45:37,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:45:37,256 INFO L87 Difference]: Start difference. First operand 3270 states and 4419 transitions. Second operand has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 11 states have internal predecessors, (142), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-13 17:45:41,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:45:41,865 INFO L93 Difference]: Finished difference Result 7912 states and 10906 transitions. [2021-11-13 17:45:41,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:45:41,866 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 11 states have internal predecessors, (142), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 4 states have call successors, (22) Word has length 230 [2021-11-13 17:45:41,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:45:41,888 INFO L225 Difference]: With dead ends: 7912 [2021-11-13 17:45:41,888 INFO L226 Difference]: Without dead ends: 4651 [2021-11-13 17:45:41,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-11-13 17:45:41,900 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 158 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4060.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.71ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4260.35ms IncrementalHoareTripleChecker+Time [2021-11-13 17:45:41,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 2133 Invalid, 119 Unknown, 0 Unchecked, 3.71ms Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 4260.35ms Time] [2021-11-13 17:45:41,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4651 states. [2021-11-13 17:45:42,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4651 to 3270. [2021-11-13 17:45:42,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3270 states, 2522 states have (on average 1.2969865186360032) internal successors, (3271), 2561 states have internal predecessors, (3271), 492 states have call successors, (492), 211 states have call predecessors, (492), 255 states have return successors, (656), 497 states have call predecessors, (656), 491 states have call successors, (656) [2021-11-13 17:45:42,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 4419 transitions. [2021-11-13 17:45:42,310 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 4419 transitions. Word has length 230 [2021-11-13 17:45:42,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:45:42,311 INFO L470 AbstractCegarLoop]: Abstraction has 3270 states and 4419 transitions. [2021-11-13 17:45:42,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 11 states have internal predecessors, (142), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-13 17:45:42,311 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 4419 transitions. [2021-11-13 17:45:42,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-13 17:45:42,321 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:42,322 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:45:42,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-13 17:45:42,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:45:42,548 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:45:42,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:42,548 INFO L85 PathProgramCache]: Analyzing trace with hash -967529890, now seen corresponding path program 2 times [2021-11-13 17:45:42,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:45:42,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [74961053] [2021-11-13 17:45:42,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:45:42,550 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:45:42,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:45:42,552 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:45:42,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-13 17:45:43,055 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 17:45:43,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:45:43,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:45:43,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:45:43,583 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2021-11-13 17:45:43,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:45:44,114 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2021-11-13 17:45:44,114 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:45:44,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [74961053] [2021-11-13 17:45:44,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [74961053] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:45:44,115 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:45:44,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 17:45:44,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544982625] [2021-11-13 17:45:44,115 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:45:44,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:45:44,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:45:44,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:45:44,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:45:44,117 INFO L87 Difference]: Start difference. First operand 3270 states and 4419 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2021-11-13 17:45:44,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:45:44,328 INFO L93 Difference]: Finished difference Result 5911 states and 8038 transitions. [2021-11-13 17:45:44,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:45:44,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 217 [2021-11-13 17:45:44,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:45:44,343 INFO L225 Difference]: With dead ends: 5911 [2021-11-13 17:45:44,343 INFO L226 Difference]: Without dead ends: 3285 [2021-11-13 17:45:44,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:45:44,356 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 5 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.81ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.71ms IncrementalHoareTripleChecker+Time [2021-11-13 17:45:44,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 536 Invalid, 4 Unknown, 0 Unchecked, 0.81ms Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 9.71ms Time] [2021-11-13 17:45:44,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3285 states. [2021-11-13 17:45:44,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3285 to 3285. [2021-11-13 17:45:44,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3285 states, 2537 states have (on average 1.2940480882932597) internal successors, (3283), 2576 states have internal predecessors, (3283), 492 states have call successors, (492), 211 states have call predecessors, (492), 255 states have return successors, (656), 497 states have call predecessors, (656), 491 states have call successors, (656) [2021-11-13 17:45:44,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3285 states to 3285 states and 4431 transitions. [2021-11-13 17:45:44,672 INFO L78 Accepts]: Start accepts. Automaton has 3285 states and 4431 transitions. Word has length 217 [2021-11-13 17:45:44,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:45:44,673 INFO L470 AbstractCegarLoop]: Abstraction has 3285 states and 4431 transitions. [2021-11-13 17:45:44,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2021-11-13 17:45:44,673 INFO L276 IsEmpty]: Start isEmpty. Operand 3285 states and 4431 transitions. [2021-11-13 17:45:44,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-13 17:45:44,683 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:44,684 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:45:44,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-13 17:45:44,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:45:44,906 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:45:44,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:44,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1228007192, now seen corresponding path program 1 times [2021-11-13 17:45:44,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:45:44,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180961372] [2021-11-13 17:45:44,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:45:44,909 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:45:44,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:45:44,910 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:45:44,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-13 17:45:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:45,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 17:45:45,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:45:46,459 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2021-11-13 17:45:46,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:45:47,478 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2021-11-13 17:45:47,478 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:45:47,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1180961372] [2021-11-13 17:45:47,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1180961372] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:45:47,479 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:45:47,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-11-13 17:45:47,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542299208] [2021-11-13 17:45:47,480 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:45:47,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:45:47,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:45:47,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:45:47,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:45:47,482 INFO L87 Difference]: Start difference. First operand 3285 states and 4431 transitions. Second operand has 13 states, 13 states have (on average 11.384615384615385) internal successors, (148), 13 states have internal predecessors, (148), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-13 17:45:54,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:45:54,445 INFO L93 Difference]: Finished difference Result 7987 states and 11005 transitions. [2021-11-13 17:45:54,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 17:45:54,446 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.384615384615385) internal successors, (148), 13 states have internal predecessors, (148), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 4 states have call successors, (22) Word has length 232 [2021-11-13 17:45:54,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:45:54,468 INFO L225 Difference]: With dead ends: 7987 [2021-11-13 17:45:54,468 INFO L226 Difference]: Without dead ends: 4711 [2021-11-13 17:45:54,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2021-11-13 17:45:54,485 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 285 mSDsluCounter, 2265 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6190.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 2670 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.89ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6506.50ms IncrementalHoareTripleChecker+Time [2021-11-13 17:45:54,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 2670 Invalid, 208 Unknown, 0 Unchecked, 6.89ms Time], IncrementalHoareTripleChecker [38 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 6506.50ms Time] [2021-11-13 17:45:54,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4711 states. [2021-11-13 17:45:54,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4711 to 3285. [2021-11-13 17:45:54,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3285 states, 2537 states have (on average 1.2940480882932597) internal successors, (3283), 2576 states have internal predecessors, (3283), 492 states have call successors, (492), 211 states have call predecessors, (492), 255 states have return successors, (656), 497 states have call predecessors, (656), 491 states have call successors, (656) [2021-11-13 17:45:54,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3285 states to 3285 states and 4431 transitions. [2021-11-13 17:45:54,773 INFO L78 Accepts]: Start accepts. Automaton has 3285 states and 4431 transitions. Word has length 232 [2021-11-13 17:45:54,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:45:54,774 INFO L470 AbstractCegarLoop]: Abstraction has 3285 states and 4431 transitions. [2021-11-13 17:45:54,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.384615384615385) internal successors, (148), 13 states have internal predecessors, (148), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-13 17:45:54,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3285 states and 4431 transitions. [2021-11-13 17:45:54,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-11-13 17:45:54,784 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:54,784 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:45:54,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-13 17:45:54,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:45:54,998 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:45:54,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:54,998 INFO L85 PathProgramCache]: Analyzing trace with hash 770345830, now seen corresponding path program 1 times [2021-11-13 17:45:55,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:45:55,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1448697666] [2021-11-13 17:45:55,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:45:55,000 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:45:55,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:45:55,001 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:45:55,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-13 17:45:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:55,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-13 17:45:55,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:45:56,523 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-13 17:45:56,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:45:57,905 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-13 17:45:57,905 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:45:57,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1448697666] [2021-11-13 17:45:57,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1448697666] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:45:57,906 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:45:57,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-11-13 17:45:57,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326094328] [2021-11-13 17:45:57,906 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:45:57,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-13 17:45:57,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:45:57,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-13 17:45:57,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-11-13 17:45:57,909 INFO L87 Difference]: Start difference. First operand 3285 states and 4431 transitions. Second operand has 17 states, 15 states have (on average 9.0) internal successors, (135), 17 states have internal predecessors, (135), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:46:12,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:46:12,557 INFO L93 Difference]: Finished difference Result 8407 states and 12037 transitions. [2021-11-13 17:46:12,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:46:12,559 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 9.0) internal successors, (135), 17 states have internal predecessors, (135), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 218 [2021-11-13 17:46:12,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:46:12,575 INFO L225 Difference]: With dead ends: 8407 [2021-11-13 17:46:12,575 INFO L226 Difference]: Without dead ends: 5131 [2021-11-13 17:46:12,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2021-11-13 17:46:12,584 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 392 mSDsluCounter, 3631 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13483.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 4058 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.05ms SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14162.49ms IncrementalHoareTripleChecker+Time [2021-11-13 17:46:12,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [433 Valid, 4058 Invalid, 571 Unknown, 0 Unchecked, 10.05ms Time], IncrementalHoareTripleChecker [61 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 14162.49ms Time] [2021-11-13 17:46:12,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2021-11-13 17:46:12,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 3300. [2021-11-13 17:46:12,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 2552 states have (on average 1.2981974921630095) internal successors, (3313), 2591 states have internal predecessors, (3313), 492 states have call successors, (492), 211 states have call predecessors, (492), 255 states have return successors, (656), 497 states have call predecessors, (656), 491 states have call successors, (656) [2021-11-13 17:46:12,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 4461 transitions. [2021-11-13 17:46:12,976 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 4461 transitions. Word has length 218 [2021-11-13 17:46:12,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:46:12,977 INFO L470 AbstractCegarLoop]: Abstraction has 3300 states and 4461 transitions. [2021-11-13 17:46:12,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 9.0) internal successors, (135), 17 states have internal predecessors, (135), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:46:12,977 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 4461 transitions. [2021-11-13 17:46:12,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-13 17:46:12,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:46:12,987 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:46:13,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-13 17:46:13,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:46:13,202 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:46:13,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:46:13,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1349303652, now seen corresponding path program 2 times [2021-11-13 17:46:13,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:46:13,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [666816723] [2021-11-13 17:46:13,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:46:13,204 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:46:13,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:46:13,205 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:46:13,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-13 17:46:13,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 17:46:13,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:46:13,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-13 17:46:13,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:46:14,615 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-11-13 17:46:14,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:46:16,859 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-11-13 17:46:16,859 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:46:16,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [666816723] [2021-11-13 17:46:16,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [666816723] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:46:16,860 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:46:16,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 21 [2021-11-13 17:46:16,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509179429] [2021-11-13 17:46:16,861 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:46:16,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-13 17:46:16,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:46:16,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-13 17:46:16,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:46:16,863 INFO L87 Difference]: Start difference. First operand 3300 states and 4461 transitions. Second operand has 21 states, 21 states have (on average 8.19047619047619) internal successors, (172), 21 states have internal predecessors, (172), 6 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (29), 6 states have call predecessors, (29), 5 states have call successors, (29) [2021-11-13 17:46:37,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:46:37,660 INFO L93 Difference]: Finished difference Result 14768 states and 20872 transitions. [2021-11-13 17:46:37,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-11-13 17:46:37,662 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.19047619047619) internal successors, (172), 21 states have internal predecessors, (172), 6 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (29), 6 states have call predecessors, (29), 5 states have call successors, (29) Word has length 233 [2021-11-13 17:46:37,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:46:37,701 INFO L225 Difference]: With dead ends: 14768 [2021-11-13 17:46:37,701 INFO L226 Difference]: Without dead ends: 11467 [2021-11-13 17:46:37,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 459 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=525, Invalid=2781, Unknown=0, NotChecked=0, Total=3306 [2021-11-13 17:46:37,715 INFO L933 BasicCegarLoop]: 721 mSDtfsCounter, 3966 mSDsluCounter, 5329 mSDsCounter, 0 mSdLazyCounter, 3706 mSolverCounterSat, 1586 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15857.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4024 SdHoareTripleChecker+Valid, 6050 SdHoareTripleChecker+Invalid, 5714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.23ms SdHoareTripleChecker+Time, 1586 IncrementalHoareTripleChecker+Valid, 3706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 422 IncrementalHoareTripleChecker+Unchecked, 17422.65ms IncrementalHoareTripleChecker+Time [2021-11-13 17:46:37,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4024 Valid, 6050 Invalid, 5714 Unknown, 0 Unchecked, 61.23ms Time], IncrementalHoareTripleChecker [1586 Valid, 3706 Invalid, 0 Unknown, 422 Unchecked, 17422.65ms Time] [2021-11-13 17:46:37,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11467 states. [2021-11-13 17:46:38,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11467 to 6554. [2021-11-13 17:46:38,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6554 states, 5096 states have (on average 1.2831632653061225) internal successors, (6539), 5177 states have internal predecessors, (6539), 926 states have call successors, (926), 433 states have call predecessors, (926), 531 states have return successors, (1252), 943 states have call predecessors, (1252), 925 states have call successors, (1252) [2021-11-13 17:46:38,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6554 states to 6554 states and 8717 transitions. [2021-11-13 17:46:38,528 INFO L78 Accepts]: Start accepts. Automaton has 6554 states and 8717 transitions. Word has length 233 [2021-11-13 17:46:38,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:46:38,529 INFO L470 AbstractCegarLoop]: Abstraction has 6554 states and 8717 transitions. [2021-11-13 17:46:38,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.19047619047619) internal successors, (172), 21 states have internal predecessors, (172), 6 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (29), 6 states have call predecessors, (29), 5 states have call successors, (29) [2021-11-13 17:46:38,529 INFO L276 IsEmpty]: Start isEmpty. Operand 6554 states and 8717 transitions. [2021-11-13 17:46:38,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-13 17:46:38,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:46:38,538 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:46:38,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (28)] Ended with exit code 0 [2021-11-13 17:46:38,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:46:38,755 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:46:38,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:46:38,756 INFO L85 PathProgramCache]: Analyzing trace with hash 233887179, now seen corresponding path program 2 times [2021-11-13 17:46:38,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:46:38,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288655616] [2021-11-13 17:46:38,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:46:38,758 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:46:38,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:46:38,760 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:46:38,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-13 17:46:40,642 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 17:46:40,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:46:40,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:46:40,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:46:41,210 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2021-11-13 17:46:41,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:46:41,817 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2021-11-13 17:46:41,817 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:46:41,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288655616] [2021-11-13 17:46:41,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1288655616] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:46:41,818 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:46:41,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 17:46:41,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587377814] [2021-11-13 17:46:41,818 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:46:41,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:46:41,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:46:41,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:46:41,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:46:41,822 INFO L87 Difference]: Start difference. First operand 6554 states and 8717 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 4 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2021-11-13 17:46:43,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:46:43,022 INFO L93 Difference]: Finished difference Result 18838 states and 26160 transitions. [2021-11-13 17:46:43,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:46:43,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 4 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 232 [2021-11-13 17:46:43,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:46:43,058 INFO L225 Difference]: With dead ends: 18838 [2021-11-13 17:46:43,058 INFO L226 Difference]: Without dead ends: 12598 [2021-11-13 17:46:43,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:46:43,068 INFO L933 BasicCegarLoop]: 503 mSDtfsCounter, 287 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 99.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.19ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 118.54ms IncrementalHoareTripleChecker+Time [2021-11-13 17:46:43,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 908 Invalid, 44 Unknown, 0 Unchecked, 2.19ms Time], IncrementalHoareTripleChecker [20 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 118.54ms Time] [2021-11-13 17:46:43,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12598 states. [2021-11-13 17:46:44,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12598 to 6950. [2021-11-13 17:46:44,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6950 states, 5330 states have (on average 1.274108818011257) internal successors, (6791), 5429 states have internal predecessors, (6791), 1088 states have call successors, (1088), 433 states have call predecessors, (1088), 531 states have return successors, (1546), 1087 states have call predecessors, (1546), 1087 states have call successors, (1546) [2021-11-13 17:46:44,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6950 states to 6950 states and 9425 transitions. [2021-11-13 17:46:44,077 INFO L78 Accepts]: Start accepts. Automaton has 6950 states and 9425 transitions. Word has length 232 [2021-11-13 17:46:44,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:46:44,078 INFO L470 AbstractCegarLoop]: Abstraction has 6950 states and 9425 transitions. [2021-11-13 17:46:44,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 4 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2021-11-13 17:46:44,079 INFO L276 IsEmpty]: Start isEmpty. Operand 6950 states and 9425 transitions. [2021-11-13 17:46:44,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-13 17:46:44,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:46:44,087 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:46:44,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-13 17:46:44,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:46:44,298 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:46:44,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:46:44,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1488115507, now seen corresponding path program 1 times [2021-11-13 17:46:44,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:46:44,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928191880] [2021-11-13 17:46:44,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:46:44,300 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:46:44,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:46:44,301 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:46:44,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-13 17:46:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:45,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 17:46:45,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:46:45,596 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-11-13 17:46:45,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:46:46,937 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 7 proven. 18 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-11-13 17:46:46,937 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:46:46,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928191880] [2021-11-13 17:46:46,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928191880] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:46:46,938 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:46:46,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-11-13 17:46:46,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887888693] [2021-11-13 17:46:46,938 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:46:46,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 17:46:46,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:46:46,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 17:46:46,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-11-13 17:46:46,940 INFO L87 Difference]: Start difference. First operand 6950 states and 9425 transitions. Second operand has 15 states, 15 states have (on average 9.733333333333333) internal successors, (146), 15 states have internal predecessors, (146), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-13 17:46:58,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:46:58,562 INFO L93 Difference]: Finished difference Result 16452 states and 22918 transitions. [2021-11-13 17:46:58,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 17:46:58,563 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.733333333333333) internal successors, (146), 15 states have internal predecessors, (146), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 4 states have call successors, (22) Word has length 232 [2021-11-13 17:46:58,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:46:58,587 INFO L225 Difference]: With dead ends: 16452 [2021-11-13 17:46:58,588 INFO L226 Difference]: Without dead ends: 9819 [2021-11-13 17:46:58,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2021-11-13 17:46:58,606 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 314 mSDsluCounter, 2670 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10046.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.45ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10521.91ms IncrementalHoareTripleChecker+Time [2021-11-13 17:46:58,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 3076 Invalid, 288 Unknown, 0 Unchecked, 6.45ms Time], IncrementalHoareTripleChecker [45 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 10521.91ms Time] [2021-11-13 17:46:58,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9819 states. [2021-11-13 17:46:59,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9819 to 6950. [2021-11-13 17:46:59,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6950 states, 5330 states have (on average 1.274108818011257) internal successors, (6791), 5429 states have internal predecessors, (6791), 1088 states have call successors, (1088), 433 states have call predecessors, (1088), 531 states have return successors, (1546), 1087 states have call predecessors, (1546), 1087 states have call successors, (1546) [2021-11-13 17:46:59,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6950 states to 6950 states and 9425 transitions. [2021-11-13 17:46:59,578 INFO L78 Accepts]: Start accepts. Automaton has 6950 states and 9425 transitions. Word has length 232 [2021-11-13 17:46:59,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:46:59,578 INFO L470 AbstractCegarLoop]: Abstraction has 6950 states and 9425 transitions. [2021-11-13 17:46:59,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.733333333333333) internal successors, (146), 15 states have internal predecessors, (146), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-13 17:46:59,578 INFO L276 IsEmpty]: Start isEmpty. Operand 6950 states and 9425 transitions. [2021-11-13 17:46:59,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-13 17:46:59,584 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:46:59,584 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:46:59,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (30)] Ended with exit code 0 [2021-11-13 17:46:59,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:46:59,785 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:46:59,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:46:59,785 INFO L85 PathProgramCache]: Analyzing trace with hash 109067917, now seen corresponding path program 2 times [2021-11-13 17:46:59,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:46:59,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2089500792] [2021-11-13 17:46:59,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:46:59,787 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:46:59,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:46:59,788 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:46:59,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-13 17:47:01,680 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 17:47:01,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:47:01,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:47:01,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:47:02,243 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2021-11-13 17:47:02,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:47:02,772 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-13 17:47:02,772 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:47:02,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2089500792] [2021-11-13 17:47:02,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2089500792] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 17:47:02,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 17:47:02,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-13 17:47:02,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298959725] [2021-11-13 17:47:02,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:02,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:47:02,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:47:02,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:47:02,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:47:02,774 INFO L87 Difference]: Start difference. First operand 6950 states and 9425 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 17:47:04,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:47:04,061 INFO L93 Difference]: Finished difference Result 16362 states and 22702 transitions. [2021-11-13 17:47:04,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:47:04,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 233 [2021-11-13 17:47:04,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:47:04,091 INFO L225 Difference]: With dead ends: 16362 [2021-11-13 17:47:04,091 INFO L226 Difference]: Without dead ends: 9729 [2021-11-13 17:47:04,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 459 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:47:04,111 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 117 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 305.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1471 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.37ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 329.42ms IncrementalHoareTripleChecker+Time [2021-11-13 17:47:04,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 1471 Invalid, 26 Unknown, 0 Unchecked, 2.37ms Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 329.42ms Time] [2021-11-13 17:47:04,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9729 states. [2021-11-13 17:47:05,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9729 to 6968. [2021-11-13 17:47:05,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6968 states, 5348 states have (on average 1.2765519820493643) internal successors, (6827), 5447 states have internal predecessors, (6827), 1088 states have call successors, (1088), 433 states have call predecessors, (1088), 531 states have return successors, (1546), 1087 states have call predecessors, (1546), 1087 states have call successors, (1546) [2021-11-13 17:47:05,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6968 states to 6968 states and 9461 transitions. [2021-11-13 17:47:05,239 INFO L78 Accepts]: Start accepts. Automaton has 6968 states and 9461 transitions. Word has length 233 [2021-11-13 17:47:05,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:47:05,240 INFO L470 AbstractCegarLoop]: Abstraction has 6968 states and 9461 transitions. [2021-11-13 17:47:05,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 17:47:05,240 INFO L276 IsEmpty]: Start isEmpty. Operand 6968 states and 9461 transitions. [2021-11-13 17:47:05,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-13 17:47:05,248 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:47:05,248 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:05,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-13 17:47:05,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:47:05,474 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:47:05,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:05,474 INFO L85 PathProgramCache]: Analyzing trace with hash 2054779152, now seen corresponding path program 2 times [2021-11-13 17:47:05,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:47:05,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114873069] [2021-11-13 17:47:05,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:47:05,476 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:47:05,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:47:05,478 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:47:05,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-13 17:47:08,102 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 17:47:08,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:47:08,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-13 17:47:08,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:47:08,793 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 7 proven. 21 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-13 17:47:08,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:47:10,723 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 7 proven. 21 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-13 17:47:10,723 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:47:10,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114873069] [2021-11-13 17:47:10,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114873069] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:47:10,723 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:47:10,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-11-13 17:47:10,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481023357] [2021-11-13 17:47:10,724 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:47:10,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-13 17:47:10,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:47:10,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-13 17:47:10,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2021-11-13 17:47:10,727 INFO L87 Difference]: Start difference. First operand 6968 states and 9461 transitions. Second operand has 19 states, 17 states have (on average 8.058823529411764) internal successors, (137), 19 states have internal predecessors, (137), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:47:36,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:47:36,502 INFO L93 Difference]: Finished difference Result 17436 states and 25522 transitions. [2021-11-13 17:47:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 17:47:36,504 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 8.058823529411764) internal successors, (137), 19 states have internal predecessors, (137), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 219 [2021-11-13 17:47:36,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:47:36,534 INFO L225 Difference]: With dead ends: 17436 [2021-11-13 17:47:36,534 INFO L226 Difference]: Without dead ends: 10785 [2021-11-13 17:47:36,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2021-11-13 17:47:36,548 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 250 mSDsluCounter, 3927 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23492.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 4355 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.59ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24637.64ms IncrementalHoareTripleChecker+Time [2021-11-13 17:47:36,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 4355 Invalid, 689 Unknown, 0 Unchecked, 11.59ms Time], IncrementalHoareTripleChecker [27 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 24637.64ms Time] [2021-11-13 17:47:36,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10785 states. [2021-11-13 17:47:37,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10785 to 6986. [2021-11-13 17:47:37,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6986 states, 5366 states have (on average 1.2789787551248601) internal successors, (6863), 5465 states have internal predecessors, (6863), 1088 states have call successors, (1088), 433 states have call predecessors, (1088), 531 states have return successors, (1546), 1087 states have call predecessors, (1546), 1087 states have call successors, (1546) [2021-11-13 17:47:37,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6986 states to 6986 states and 9497 transitions. [2021-11-13 17:47:37,548 INFO L78 Accepts]: Start accepts. Automaton has 6986 states and 9497 transitions. Word has length 219 [2021-11-13 17:47:37,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:47:37,549 INFO L470 AbstractCegarLoop]: Abstraction has 6986 states and 9497 transitions. [2021-11-13 17:47:37,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 8.058823529411764) internal successors, (137), 19 states have internal predecessors, (137), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:47:37,549 INFO L276 IsEmpty]: Start isEmpty. Operand 6986 states and 9497 transitions. [2021-11-13 17:47:37,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-13 17:47:37,555 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:47:37,555 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:37,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-11-13 17:47:37,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:47:37,758 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:47:37,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:37,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1077460826, now seen corresponding path program 3 times [2021-11-13 17:47:37,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:47:37,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932561652] [2021-11-13 17:47:37,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 17:47:37,760 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:47:37,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:47:37,761 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:47:37,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-13 17:47:40,192 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-13 17:47:40,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:47:40,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 17:47:40,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:47:40,708 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2021-11-13 17:47:40,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:47:41,330 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2021-11-13 17:47:41,331 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:47:41,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932561652] [2021-11-13 17:47:41,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932561652] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:47:41,332 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:47:41,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-11-13 17:47:41,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753138194] [2021-11-13 17:47:41,332 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:47:41,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:47:41,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:47:41,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:47:41,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:47:41,334 INFO L87 Difference]: Start difference. First operand 6986 states and 9497 transitions. Second operand has 9 states, 7 states have (on average 18.142857142857142) internal successors, (127), 9 states have internal predecessors, (127), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:47:43,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:47:43,828 INFO L93 Difference]: Finished difference Result 17292 states and 24946 transitions. [2021-11-13 17:47:43,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:47:43,829 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 18.142857142857142) internal successors, (127), 9 states have internal predecessors, (127), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 220 [2021-11-13 17:47:43,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:47:43,868 INFO L225 Difference]: With dead ends: 17292 [2021-11-13 17:47:43,868 INFO L226 Difference]: Without dead ends: 10623 [2021-11-13 17:47:43,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:47:43,887 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 261 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1352.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 1952 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.10ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1448.31ms IncrementalHoareTripleChecker+Time [2021-11-13 17:47:43,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 1952 Invalid, 123 Unknown, 0 Unchecked, 4.10ms Time], IncrementalHoareTripleChecker [34 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 1448.31ms Time] [2021-11-13 17:47:43,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10623 states. [2021-11-13 17:47:44,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10623 to 7004. [2021-11-13 17:47:44,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7004 states, 5384 states have (on average 1.2813893016344726) internal successors, (6899), 5483 states have internal predecessors, (6899), 1088 states have call successors, (1088), 433 states have call predecessors, (1088), 531 states have return successors, (1546), 1087 states have call predecessors, (1546), 1087 states have call successors, (1546) [2021-11-13 17:47:44,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7004 states to 7004 states and 9533 transitions. [2021-11-13 17:47:44,745 INFO L78 Accepts]: Start accepts. Automaton has 7004 states and 9533 transitions. Word has length 220 [2021-11-13 17:47:44,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:47:44,750 INFO L470 AbstractCegarLoop]: Abstraction has 7004 states and 9533 transitions. [2021-11-13 17:47:44,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 18.142857142857142) internal successors, (127), 9 states have internal predecessors, (127), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:47:44,751 INFO L276 IsEmpty]: Start isEmpty. Operand 7004 states and 9533 transitions. [2021-11-13 17:47:44,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-13 17:47:44,763 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:47:44,763 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:47:44,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-11-13 17:47:44,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:47:44,978 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:47:44,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:44,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1944951883, now seen corresponding path program 1 times [2021-11-13 17:47:44,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:47:44,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465456954] [2021-11-13 17:47:44,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:44,980 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:47:44,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:47:44,981 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:47:44,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-13 17:47:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:45,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:47:45,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:47:46,235 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-11-13 17:47:46,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:47:46,778 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-11-13 17:47:46,778 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:47:46,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465456954] [2021-11-13 17:47:46,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [465456954] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:46,778 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:46,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-13 17:47:46,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632701661] [2021-11-13 17:47:46,779 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:46,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:47:46,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:47:46,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:47:46,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:47:46,780 INFO L87 Difference]: Start difference. First operand 7004 states and 9533 transitions. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 17:47:49,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:47:49,171 INFO L93 Difference]: Finished difference Result 16326 states and 22504 transitions. [2021-11-13 17:47:49,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:47:49,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 234 [2021-11-13 17:47:49,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:47:49,194 INFO L225 Difference]: With dead ends: 16326 [2021-11-13 17:47:49,194 INFO L226 Difference]: Without dead ends: 9585 [2021-11-13 17:47:49,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:47:49,207 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 113 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1401.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.93ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1470.14ms IncrementalHoareTripleChecker+Time [2021-11-13 17:47:49,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 2131 Invalid, 36 Unknown, 0 Unchecked, 2.93ms Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 1470.14ms Time] [2021-11-13 17:47:49,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9585 states. [2021-11-13 17:47:50,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9585 to 6914. [2021-11-13 17:47:50,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6914 states, 5330 states have (on average 1.274108818011257) internal successors, (6791), 5429 states have internal predecessors, (6791), 1052 states have call successors, (1052), 433 states have call predecessors, (1052), 531 states have return successors, (1438), 1051 states have call predecessors, (1438), 1051 states have call successors, (1438) [2021-11-13 17:47:50,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6914 states to 6914 states and 9281 transitions. [2021-11-13 17:47:50,070 INFO L78 Accepts]: Start accepts. Automaton has 6914 states and 9281 transitions. Word has length 234 [2021-11-13 17:47:50,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:47:50,070 INFO L470 AbstractCegarLoop]: Abstraction has 6914 states and 9281 transitions. [2021-11-13 17:47:50,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 17:47:50,071 INFO L276 IsEmpty]: Start isEmpty. Operand 6914 states and 9281 transitions. [2021-11-13 17:47:50,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-13 17:47:50,076 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:47:50,076 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:47:50,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-11-13 17:47:50,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:47:50,277 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:47:50,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:50,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1936601813, now seen corresponding path program 2 times [2021-11-13 17:47:50,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:47:50,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299517223] [2021-11-13 17:47:50,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:47:50,279 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:47:50,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:47:50,280 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:47:50,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-13 17:47:52,289 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 17:47:52,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:47:52,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:47:52,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:47:52,827 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-13 17:47:52,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:47:53,381 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-13 17:47:53,381 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:47:53,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299517223] [2021-11-13 17:47:53,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299517223] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:53,381 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:53,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-13 17:47:53,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358365712] [2021-11-13 17:47:53,382 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:53,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:47:53,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:47:53,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:47:53,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:47:53,383 INFO L87 Difference]: Start difference. First operand 6914 states and 9281 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 17:47:55,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:47:55,147 INFO L93 Difference]: Finished difference Result 16236 states and 22216 transitions. [2021-11-13 17:47:55,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:47:55,149 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 235 [2021-11-13 17:47:55,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:47:55,171 INFO L225 Difference]: With dead ends: 16236 [2021-11-13 17:47:55,171 INFO L226 Difference]: Without dead ends: 9603 [2021-11-13 17:47:55,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:47:55,183 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 112 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 748.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 2135 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.91ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 784.86ms IncrementalHoareTripleChecker+Time [2021-11-13 17:47:55,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 2135 Invalid, 31 Unknown, 0 Unchecked, 2.91ms Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 784.86ms Time] [2021-11-13 17:47:55,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9603 states. [2021-11-13 17:47:55,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9603 to 6932. [2021-11-13 17:47:55,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6932 states, 5348 states have (on average 1.2664547494390426) internal successors, (6773), 5447 states have internal predecessors, (6773), 1052 states have call successors, (1052), 433 states have call predecessors, (1052), 531 states have return successors, (1438), 1051 states have call predecessors, (1438), 1051 states have call successors, (1438) [2021-11-13 17:47:55,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6932 states to 6932 states and 9263 transitions. [2021-11-13 17:47:55,965 INFO L78 Accepts]: Start accepts. Automaton has 6932 states and 9263 transitions. Word has length 235 [2021-11-13 17:47:55,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:47:55,965 INFO L470 AbstractCegarLoop]: Abstraction has 6932 states and 9263 transitions. [2021-11-13 17:47:55,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 17:47:55,966 INFO L276 IsEmpty]: Start isEmpty. Operand 6932 states and 9263 transitions. [2021-11-13 17:47:55,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-13 17:47:55,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:47:55,970 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:55,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-13 17:47:56,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:47:56,171 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:47:56,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:56,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1697025614, now seen corresponding path program 4 times [2021-11-13 17:47:56,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:47:56,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898842136] [2021-11-13 17:47:56,172 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-13 17:47:56,172 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:47:56,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:47:56,173 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:47:56,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-11-13 17:47:56,957 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-13 17:47:56,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:47:57,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-13 17:47:57,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:47:57,627 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 7 proven. 28 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2021-11-13 17:47:57,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:47:59,834 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 7 proven. 28 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2021-11-13 17:47:59,834 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:47:59,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898842136] [2021-11-13 17:47:59,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898842136] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:47:59,835 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:47:59,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-11-13 17:47:59,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778695926] [2021-11-13 17:47:59,835 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:47:59,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-13 17:47:59,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:47:59,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-13 17:47:59,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:47:59,836 INFO L87 Difference]: Start difference. First operand 6932 states and 9263 transitions. Second operand has 21 states, 19 states have (on average 7.315789473684211) internal successors, (139), 21 states have internal predecessors, (139), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:48:28,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:48:28,567 INFO L93 Difference]: Finished difference Result 17364 states and 24586 transitions. [2021-11-13 17:48:28,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-13 17:48:28,568 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 7.315789473684211) internal successors, (139), 21 states have internal predecessors, (139), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 221 [2021-11-13 17:48:28,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:48:28,610 INFO L225 Difference]: With dead ends: 17364 [2021-11-13 17:48:28,611 INFO L226 Difference]: Without dead ends: 10749 [2021-11-13 17:48:28,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=168, Invalid=588, Unknown=0, NotChecked=0, Total=756 [2021-11-13 17:48:28,629 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 398 mSDsluCounter, 5265 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26191.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 5687 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.75ms SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27424.60ms IncrementalHoareTripleChecker+Time [2021-11-13 17:48:28,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 5687 Invalid, 694 Unknown, 0 Unchecked, 11.75ms Time], IncrementalHoareTripleChecker [71 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 27424.60ms Time] [2021-11-13 17:48:28,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10749 states. [2021-11-13 17:48:29,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10749 to 6950. [2021-11-13 17:48:29,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6950 states, 5366 states have (on average 1.2689153932165487) internal successors, (6809), 5465 states have internal predecessors, (6809), 1052 states have call successors, (1052), 433 states have call predecessors, (1052), 531 states have return successors, (1438), 1051 states have call predecessors, (1438), 1051 states have call successors, (1438) [2021-11-13 17:48:29,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6950 states to 6950 states and 9299 transitions. [2021-11-13 17:48:29,494 INFO L78 Accepts]: Start accepts. Automaton has 6950 states and 9299 transitions. Word has length 221 [2021-11-13 17:48:29,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:48:29,494 INFO L470 AbstractCegarLoop]: Abstraction has 6950 states and 9299 transitions. [2021-11-13 17:48:29,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 7.315789473684211) internal successors, (139), 21 states have internal predecessors, (139), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:48:29,495 INFO L276 IsEmpty]: Start isEmpty. Operand 6950 states and 9299 transitions. [2021-11-13 17:48:29,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-13 17:48:29,499 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:48:29,499 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:48:29,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-11-13 17:48:29,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:48:29,700 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:48:29,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:48:29,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1521710861, now seen corresponding path program 3 times [2021-11-13 17:48:29,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:48:29,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [325269734] [2021-11-13 17:48:29,702 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 17:48:29,702 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:48:29,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:48:29,703 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:48:29,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-13 17:48:31,242 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-13 17:48:31,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:48:31,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 17:48:31,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:48:31,770 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-13 17:48:31,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:48:32,447 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-13 17:48:32,448 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:48:32,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [325269734] [2021-11-13 17:48:32,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [325269734] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:48:32,448 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:48:32,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-11-13 17:48:32,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370048072] [2021-11-13 17:48:32,449 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:48:32,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:48:32,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:48:32,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:48:32,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:48:32,450 INFO L87 Difference]: Start difference. First operand 6950 states and 9299 transitions. Second operand has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 9 states have internal predecessors, (139), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 17:48:37,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:48:37,850 INFO L93 Difference]: Finished difference Result 16326 states and 22270 transitions. [2021-11-13 17:48:37,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 17:48:37,851 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 9 states have internal predecessors, (139), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 236 [2021-11-13 17:48:37,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:48:37,887 INFO L225 Difference]: With dead ends: 16326 [2021-11-13 17:48:37,888 INFO L226 Difference]: Without dead ends: 9621 [2021-11-13 17:48:37,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:48:37,907 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 117 mSDsluCounter, 2522 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4197.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 2922 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.14ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4367.20ms IncrementalHoareTripleChecker+Time [2021-11-13 17:48:37,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 2922 Invalid, 61 Unknown, 0 Unchecked, 4.14ms Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 4367.20ms Time] [2021-11-13 17:48:37,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9621 states. [2021-11-13 17:48:38,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9621 to 6950. [2021-11-13 17:48:38,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6950 states, 5366 states have (on average 1.2655609392471114) internal successors, (6791), 5465 states have internal predecessors, (6791), 1052 states have call successors, (1052), 433 states have call predecessors, (1052), 531 states have return successors, (1438), 1051 states have call predecessors, (1438), 1051 states have call successors, (1438) [2021-11-13 17:48:38,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6950 states to 6950 states and 9281 transitions. [2021-11-13 17:48:38,725 INFO L78 Accepts]: Start accepts. Automaton has 6950 states and 9281 transitions. Word has length 236 [2021-11-13 17:48:38,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:48:38,726 INFO L470 AbstractCegarLoop]: Abstraction has 6950 states and 9281 transitions. [2021-11-13 17:48:38,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 9 states have internal predecessors, (139), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 17:48:38,726 INFO L276 IsEmpty]: Start isEmpty. Operand 6950 states and 9281 transitions. [2021-11-13 17:48:38,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-13 17:48:38,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:48:38,730 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:48:38,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-11-13 17:48:38,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:48:38,931 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:48:38,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:48:38,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1908486044, now seen corresponding path program 5 times [2021-11-13 17:48:38,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:48:38,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125547089] [2021-11-13 17:48:38,933 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-13 17:48:38,933 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:48:38,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:48:38,934 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:48:38,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-13 17:48:46,967 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-11-13 17:48:46,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:48:47,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 906 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-13 17:48:47,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:48:47,940 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 7 proven. 36 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2021-11-13 17:48:47,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:48:50,904 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 7 proven. 36 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2021-11-13 17:48:50,905 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:48:50,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125547089] [2021-11-13 17:48:50,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125547089] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:48:50,905 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:48:50,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2021-11-13 17:48:50,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629465533] [2021-11-13 17:48:50,905 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:48:50,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-13 17:48:50,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:48:50,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-13 17:48:50,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2021-11-13 17:48:50,907 INFO L87 Difference]: Start difference. First operand 6950 states and 9281 transitions. Second operand has 23 states, 21 states have (on average 6.714285714285714) internal successors, (141), 23 states have internal predecessors, (141), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:49:36,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:49:36,201 INFO L93 Difference]: Finished difference Result 17400 states and 24694 transitions. [2021-11-13 17:49:36,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-13 17:49:36,203 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 6.714285714285714) internal successors, (141), 23 states have internal predecessors, (141), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 222 [2021-11-13 17:49:36,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:49:36,235 INFO L225 Difference]: With dead ends: 17400 [2021-11-13 17:49:36,236 INFO L226 Difference]: Without dead ends: 10767 [2021-11-13 17:49:36,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=141, Invalid=729, Unknown=0, NotChecked=0, Total=870 [2021-11-13 17:49:36,252 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 439 mSDsluCounter, 6492 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39383.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 6913 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.97ms SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41201.61ms IncrementalHoareTripleChecker+Time [2021-11-13 17:49:36,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 6913 Invalid, 896 Unknown, 0 Unchecked, 14.97ms Time], IncrementalHoareTripleChecker [88 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 41201.61ms Time] [2021-11-13 17:49:36,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10767 states. [2021-11-13 17:49:37,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10767 to 6968. [2021-11-13 17:49:37,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6968 states, 5384 states have (on average 1.2680163447251114) internal successors, (6827), 5483 states have internal predecessors, (6827), 1052 states have call successors, (1052), 433 states have call predecessors, (1052), 531 states have return successors, (1438), 1051 states have call predecessors, (1438), 1051 states have call successors, (1438) [2021-11-13 17:49:37,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6968 states to 6968 states and 9317 transitions. [2021-11-13 17:49:37,127 INFO L78 Accepts]: Start accepts. Automaton has 6968 states and 9317 transitions. Word has length 222 [2021-11-13 17:49:37,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:49:37,128 INFO L470 AbstractCegarLoop]: Abstraction has 6968 states and 9317 transitions. [2021-11-13 17:49:37,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 6.714285714285714) internal successors, (141), 23 states have internal predecessors, (141), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:49:37,128 INFO L276 IsEmpty]: Start isEmpty. Operand 6968 states and 9317 transitions. [2021-11-13 17:49:37,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-13 17:49:37,132 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:49:37,132 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:49:37,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-11-13 17:49:37,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:49:37,338 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:49:37,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:37,338 INFO L85 PathProgramCache]: Analyzing trace with hash -2010197746, now seen corresponding path program 6 times [2021-11-13 17:49:37,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:49:37,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566522860] [2021-11-13 17:49:37,340 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-13 17:49:37,341 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:49:37,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:49:37,342 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:49:37,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-11-13 17:49:50,555 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-11-13 17:49:50,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:49:50,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-13 17:49:50,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:49:51,456 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 7 proven. 45 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2021-11-13 17:49:51,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:49:54,995 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 7 proven. 45 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2021-11-13 17:49:54,996 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:49:54,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566522860] [2021-11-13 17:49:54,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566522860] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:49:54,996 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:49:54,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2021-11-13 17:49:54,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571140050] [2021-11-13 17:49:54,997 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:49:54,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-13 17:49:54,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:49:54,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-13 17:49:54,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-11-13 17:49:54,999 INFO L87 Difference]: Start difference. First operand 6968 states and 9317 transitions. Second operand has 25 states, 23 states have (on average 6.217391304347826) internal successors, (143), 25 states have internal predecessors, (143), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:50:46,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:50:46,137 INFO L93 Difference]: Finished difference Result 17508 states and 24982 transitions. [2021-11-13 17:50:46,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-13 17:50:46,139 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 6.217391304347826) internal successors, (143), 25 states have internal predecessors, (143), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 223 [2021-11-13 17:50:46,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:50:46,172 INFO L225 Difference]: With dead ends: 17508 [2021-11-13 17:50:46,172 INFO L226 Difference]: Without dead ends: 10857 [2021-11-13 17:50:46,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=166, Invalid=890, Unknown=0, NotChecked=0, Total=1056 [2021-11-13 17:50:46,188 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 496 mSDsluCounter, 6514 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43865.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 6936 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.97ms SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46052.51ms IncrementalHoareTripleChecker+Time [2021-11-13 17:50:46,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [535 Valid, 6936 Invalid, 1105 Unknown, 0 Unchecked, 15.97ms Time], IncrementalHoareTripleChecker [105 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 46052.51ms Time] [2021-11-13 17:50:46,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10857 states. [2021-11-13 17:50:47,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10857 to 6986. [2021-11-13 17:50:47,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6986 states, 5402 states have (on average 1.2704553868937432) internal successors, (6863), 5501 states have internal predecessors, (6863), 1052 states have call successors, (1052), 433 states have call predecessors, (1052), 531 states have return successors, (1438), 1051 states have call predecessors, (1438), 1051 states have call successors, (1438) [2021-11-13 17:50:47,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6986 states to 6986 states and 9353 transitions. [2021-11-13 17:50:47,058 INFO L78 Accepts]: Start accepts. Automaton has 6986 states and 9353 transitions. Word has length 223 [2021-11-13 17:50:47,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:50:47,058 INFO L470 AbstractCegarLoop]: Abstraction has 6986 states and 9353 transitions. [2021-11-13 17:50:47,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 6.217391304347826) internal successors, (143), 25 states have internal predecessors, (143), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 17:50:47,058 INFO L276 IsEmpty]: Start isEmpty. Operand 6986 states and 9353 transitions. [2021-11-13 17:50:47,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-13 17:50:47,062 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:50:47,062 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:50:47,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-11-13 17:50:47,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:50:47,263 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:50:47,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:50:47,263 INFO L85 PathProgramCache]: Analyzing trace with hash -619778067, now seen corresponding path program 4 times [2021-11-13 17:50:47,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:50:47,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [565876266] [2021-11-13 17:50:47,265 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-13 17:50:47,265 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:50:47,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:50:47,267 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:50:47,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-13 17:50:48,096 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-13 17:50:48,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:50:48,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 17:50:48,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:50:48,654 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 31 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-13 17:50:48,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:50:49,512 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 31 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-13 17:50:49,512 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:50:49,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [565876266] [2021-11-13 17:50:49,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [565876266] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:50:49,513 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:50:49,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-11-13 17:50:49,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148008755] [2021-11-13 17:50:49,513 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:50:49,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 17:50:49,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:50:49,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 17:50:49,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:50:49,514 INFO L87 Difference]: Start difference. First operand 6986 states and 9353 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 17:50:55,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:50:55,126 INFO L93 Difference]: Finished difference Result 16398 states and 22378 transitions. [2021-11-13 17:50:55,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:50:55,127 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 237 [2021-11-13 17:50:55,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:50:55,153 INFO L225 Difference]: With dead ends: 16398 [2021-11-13 17:50:55,153 INFO L226 Difference]: Without dead ends: 9657 [2021-11-13 17:50:55,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:50:55,167 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 234 mSDsluCounter, 2249 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4291.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 2649 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.00ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4486.52ms IncrementalHoareTripleChecker+Time [2021-11-13 17:50:55,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 2649 Invalid, 91 Unknown, 0 Unchecked, 4.00ms Time], IncrementalHoareTripleChecker [23 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 4486.52ms Time] [2021-11-13 17:50:55,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9657 states. [2021-11-13 17:50:55,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9657 to 6986. [2021-11-13 17:50:55,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6986 states, 5402 states have (on average 1.2671232876712328) internal successors, (6845), 5501 states have internal predecessors, (6845), 1052 states have call successors, (1052), 433 states have call predecessors, (1052), 531 states have return successors, (1438), 1051 states have call predecessors, (1438), 1051 states have call successors, (1438) [2021-11-13 17:50:56,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6986 states to 6986 states and 9335 transitions. [2021-11-13 17:50:56,015 INFO L78 Accepts]: Start accepts. Automaton has 6986 states and 9335 transitions. Word has length 237 [2021-11-13 17:50:56,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:50:56,016 INFO L470 AbstractCegarLoop]: Abstraction has 6986 states and 9335 transitions. [2021-11-13 17:50:56,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 17:50:56,016 INFO L276 IsEmpty]: Start isEmpty. Operand 6986 states and 9335 transitions. [2021-11-13 17:50:56,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-11-13 17:50:56,020 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:50:56,020 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:50:56,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-11-13 17:50:56,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:50:56,221 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:50:56,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:50:56,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1713541901, now seen corresponding path program 5 times [2021-11-13 17:50:56,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:50:56,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985917533] [2021-11-13 17:50:56,224 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-13 17:50:56,224 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:50:56,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:50:56,227 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:50:56,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-13 17:51:02,845 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-11-13 17:51:02,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:51:02,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 932 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 17:51:02,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:51:03,583 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-13 17:51:03,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:51:05,136 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-13 17:51:05,136 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:51:05,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985917533] [2021-11-13 17:51:05,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985917533] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:51:05,137 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:51:05,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-11-13 17:51:05,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822314903] [2021-11-13 17:51:05,137 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:51:05,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:51:05,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:51:05,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:51:05,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:51:05,139 INFO L87 Difference]: Start difference. First operand 6986 states and 9335 transitions. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 17:51:14,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:51:14,293 INFO L93 Difference]: Finished difference Result 16398 states and 22342 transitions. [2021-11-13 17:51:14,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:51:14,294 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 238 [2021-11-13 17:51:14,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:51:14,326 INFO L225 Difference]: With dead ends: 16398 [2021-11-13 17:51:14,327 INFO L226 Difference]: Without dead ends: 9657 [2021-11-13 17:51:14,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2021-11-13 17:51:14,344 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 239 mSDsluCounter, 2222 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7222.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.17ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7535.26ms IncrementalHoareTripleChecker+Time [2021-11-13 17:51:14,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 2618 Invalid, 130 Unknown, 0 Unchecked, 4.17ms Time], IncrementalHoareTripleChecker [24 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 7535.26ms Time] [2021-11-13 17:51:14,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9657 states. [2021-11-13 17:51:15,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9657 to 6986. [2021-11-13 17:51:15,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6986 states, 5402 states have (on average 1.2637911884487227) internal successors, (6827), 5501 states have internal predecessors, (6827), 1052 states have call successors, (1052), 433 states have call predecessors, (1052), 531 states have return successors, (1438), 1051 states have call predecessors, (1438), 1051 states have call successors, (1438) [2021-11-13 17:51:15,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6986 states to 6986 states and 9317 transitions. [2021-11-13 17:51:15,320 INFO L78 Accepts]: Start accepts. Automaton has 6986 states and 9317 transitions. Word has length 238 [2021-11-13 17:51:15,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:51:15,321 INFO L470 AbstractCegarLoop]: Abstraction has 6986 states and 9317 transitions. [2021-11-13 17:51:15,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 17:51:15,321 INFO L276 IsEmpty]: Start isEmpty. Operand 6986 states and 9317 transitions. [2021-11-13 17:51:15,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-13 17:51:15,324 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:51:15,325 INFO L514 BasicCegarLoop]: trace histogram [10, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:51:15,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-11-13 17:51:15,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:51:15,526 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:51:15,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:51:15,526 INFO L85 PathProgramCache]: Analyzing trace with hash -868293212, now seen corresponding path program 7 times [2021-11-13 17:51:15,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:51:15,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744810274] [2021-11-13 17:51:15,527 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-13 17:51:15,527 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:51:15,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:51:15,528 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:51:15,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dcdc331-419f-461f-a03a-cdf945bc27fc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-11-13 17:51:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:20,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 233 conjunts are in the unsatisfiable core [2021-11-13 17:51:20,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:51:22,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-13 17:51:22,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-13 17:51:24,334 INFO L354 Elim1Store]: treesize reduction 125, result has 15.0 percent of original size [2021-11-13 17:51:24,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 37 [2021-11-13 17:51:24,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:51:24,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:51:24,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 37 [2021-11-13 17:51:26,188 INFO L354 Elim1Store]: treesize reduction 86, result has 1.1 percent of original size [2021-11-13 17:51:26,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 133 treesize of output 61 [2021-11-13 17:51:26,223 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-13 17:51:26,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 23 [2021-11-13 17:51:27,236 INFO L354 Elim1Store]: treesize reduction 269, result has 15.4 percent of original size [2021-11-13 17:51:27,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 195 treesize of output 143 [2021-11-13 17:51:27,373 INFO L354 Elim1Store]: treesize reduction 143, result has 15.9 percent of original size [2021-11-13 17:51:27,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 131 treesize of output 82 [2021-11-13 17:51:28,155 INFO L354 Elim1Store]: treesize reduction 251, result has 16.3 percent of original size [2021-11-13 17:51:28,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 183 treesize of output 146 [2021-11-13 17:51:28,308 INFO L354 Elim1Store]: treesize reduction 125, result has 17.8 percent of original size [2021-11-13 17:51:28,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 125 treesize of output 91 [2021-11-13 17:51:28,650 INFO L354 Elim1Store]: treesize reduction 86, result has 1.1 percent of original size [2021-11-13 17:51:28,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 133 treesize of output 61 [2021-11-13 17:51:28,688 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-13 17:51:28,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 23 [2021-11-13 17:51:29,539 INFO L354 Elim1Store]: treesize reduction 231, result has 16.3 percent of original size [2021-11-13 17:51:29,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 195 treesize of output 146 [2021-11-13 17:51:29,707 INFO L354 Elim1Store]: treesize reduction 269, result has 15.4 percent of original size [2021-11-13 17:51:29,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 176 treesize of output 124 [2021-11-13 17:51:32,538 INFO L354 Elim1Store]: treesize reduction 86, result has 1.1 percent of original size [2021-11-13 17:51:32,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 133 treesize of output 61 [2021-11-13 17:51:32,576 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-13 17:51:32,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 23