./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY --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 70a2ace6fc40caa55e586c636402c0a5dfab1c8b77b7cf0fdf6a2120173a773c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:22:12,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:22:12,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:22:12,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:22:12,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:22:12,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:22:12,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:22:12,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:22:12,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:22:12,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:22:12,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:22:12,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:22:12,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:22:12,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:22:12,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:22:12,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:22:12,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:22:12,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:22:12,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:22:12,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:22:12,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:22:12,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:22:12,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:22:12,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:22:12,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:22:12,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:22:12,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:22:12,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:22:12,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:22:12,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:22:12,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:22:12,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:22:12,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:22:12,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:22:12,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:22:12,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:22:12,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:22:12,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:22:12,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:22:12,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:22:12,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:22:12,945 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 07:22:12,996 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:22:12,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:22:12,997 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:22:12,998 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:22:12,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:22:12,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:22:13,000 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:22:13,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:22:13,000 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:22:13,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:22:13,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:22:13,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:22:13,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:22:13,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:22:13,002 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:22:13,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:22:13,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:22:13,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:22:13,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:22:13,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:22:13,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:22:13,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:22:13,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:22:13,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:22:13,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:22:13,005 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:22:13,006 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:22:13,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:22:13,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:22:13,006 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_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70a2ace6fc40caa55e586c636402c0a5dfab1c8b77b7cf0fdf6a2120173a773c [2021-11-07 07:22:13,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:22:13,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:22:13,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:22:13,372 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:22:13,375 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:22:13,376 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i [2021-11-07 07:22:13,480 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/data/7639b3a15/c41de9c397524bafa2439a7b6c03f5b9/FLAG9d5685927 [2021-11-07 07:22:14,485 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:22:14,486 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i [2021-11-07 07:22:14,545 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/data/7639b3a15/c41de9c397524bafa2439a7b6c03f5b9/FLAG9d5685927 [2021-11-07 07:22:14,876 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/data/7639b3a15/c41de9c397524bafa2439a7b6c03f5b9 [2021-11-07 07:22:14,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:22:14,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:22:14,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:22:14,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:22:14,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:22:14,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:22:14" (1/1) ... [2021-11-07 07:22:14,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@824308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:14, skipping insertion in model container [2021-11-07 07:22:14,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:22:14" (1/1) ... [2021-11-07 07:22:14,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:22:15,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:22:16,609 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_a153fdf9-74e7-4766-9f66-7581c074dcb9/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i[199632,199645] [2021-11-07 07:22:16,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:22:16,744 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:22:17,031 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_a153fdf9-74e7-4766-9f66-7581c074dcb9/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i[199632,199645] [2021-11-07 07:22:17,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:22:17,529 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:22:17,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:17 WrapperNode [2021-11-07 07:22:17,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:22:17,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:22:17,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:22:17,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:22:17,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:17" (1/1) ... [2021-11-07 07:22:17,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:17" (1/1) ... [2021-11-07 07:22:17,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:22:17,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:22:17,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:22:17,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:22:17,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:17" (1/1) ... [2021-11-07 07:22:17,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:17" (1/1) ... [2021-11-07 07:22:17,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:17" (1/1) ... [2021-11-07 07:22:17,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:17" (1/1) ... [2021-11-07 07:22:18,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:17" (1/1) ... [2021-11-07 07:22:18,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:17" (1/1) ... [2021-11-07 07:22:18,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:17" (1/1) ... [2021-11-07 07:22:18,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:22:18,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:22:18,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:22:18,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:22:18,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:17" (1/1) ... [2021-11-07 07:22:18,159 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:22:18,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:22:18,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:22:18,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:22:18,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 07:22:18,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 07:22:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 07:22:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 07:22:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 07:22:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 07:22:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 07:22:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:22:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 07:22:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 07:22:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 07:22:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:22:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 07:22:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-07 07:22:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:22:18,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:22:18,793 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 07:22:18,871 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 07:22:24,204 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##522: assume !false; [2021-11-07 07:22:24,204 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##521: assume false; [2021-11-07 07:22:24,204 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !false; [2021-11-07 07:22:24,205 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume false; [2021-11-07 07:22:24,234 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:22:24,234 INFO L299 CfgBuilder]: Removed 647 assume(true) statements. [2021-11-07 07:22:24,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:22:24 BoogieIcfgContainer [2021-11-07 07:22:24,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:22:24,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:22:24,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:22:24,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:22:24,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:22:14" (1/3) ... [2021-11-07 07:22:24,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e810c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:22:24, skipping insertion in model container [2021-11-07 07:22:24,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:17" (2/3) ... [2021-11-07 07:22:24,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e810c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:22:24, skipping insertion in model container [2021-11-07 07:22:24,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:22:24" (3/3) ... [2021-11-07 07:22:24,250 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-net-usb-catc.ko.cil.out.i [2021-11-07 07:22:24,261 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:22:24,261 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-07 07:22:24,348 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:22:24,361 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 [2021-11-07 07:22:24,361 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-07 07:22:24,410 INFO L276 IsEmpty]: Start isEmpty. Operand has 689 states, 674 states have (on average 1.4940652818991098) internal successors, (1007), 688 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:24,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 07:22:24,431 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:22:24,432 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:22:24,433 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:22:24,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:22:24,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1802578412, now seen corresponding path program 1 times [2021-11-07 07:22:24,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:22:24,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260068273] [2021-11-07 07:22:24,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:22:24,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:22:24,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:22:25,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:22:25,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:22:25,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260068273] [2021-11-07 07:22:25,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260068273] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:22:25,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:22:25,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 07:22:25,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658640897] [2021-11-07 07:22:25,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:22:25,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:22:25,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:22:25,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:22:25,216 INFO L87 Difference]: Start difference. First operand has 689 states, 674 states have (on average 1.4940652818991098) internal successors, (1007), 688 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:25,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:22:25,549 INFO L93 Difference]: Finished difference Result 2020 states and 2970 transitions. [2021-11-07 07:22:25,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:22:25,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-07 07:22:25,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:22:25,588 INFO L225 Difference]: With dead ends: 2020 [2021-11-07 07:22:25,589 INFO L226 Difference]: Without dead ends: 1312 [2021-11-07 07:22:25,601 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:22:25,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2021-11-07 07:22:25,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1288. [2021-11-07 07:22:25,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1274 states have (on average 1.2896389324960753) internal successors, (1643), 1287 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:25,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1643 transitions. [2021-11-07 07:22:25,780 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1643 transitions. Word has length 11 [2021-11-07 07:22:25,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:22:25,781 INFO L470 AbstractCegarLoop]: Abstraction has 1288 states and 1643 transitions. [2021-11-07 07:22:25,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:25,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1643 transitions. [2021-11-07 07:22:25,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 07:22:25,782 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:22:25,782 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:22:25,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 07:22:25,783 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:22:25,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:22:25,784 INFO L85 PathProgramCache]: Analyzing trace with hash 45356904, now seen corresponding path program 1 times [2021-11-07 07:22:25,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:22:25,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450093879] [2021-11-07 07:22:25,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:22:25,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:22:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:22:26,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:22:26,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:22:26,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450093879] [2021-11-07 07:22:26,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450093879] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:22:26,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:22:26,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 07:22:26,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479381969] [2021-11-07 07:22:26,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:22:26,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:22:26,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:22:26,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:22:26,011 INFO L87 Difference]: Start difference. First operand 1288 states and 1643 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:26,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:22:26,096 INFO L93 Difference]: Finished difference Result 1288 states and 1643 transitions. [2021-11-07 07:22:26,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:22:26,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-07 07:22:26,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:22:26,106 INFO L225 Difference]: With dead ends: 1288 [2021-11-07 07:22:26,106 INFO L226 Difference]: Without dead ends: 1283 [2021-11-07 07:22:26,107 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:22:26,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2021-11-07 07:22:26,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1283. [2021-11-07 07:22:26,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1270 states have (on average 1.2858267716535432) internal successors, (1633), 1282 states have internal predecessors, (1633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:26,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1633 transitions. [2021-11-07 07:22:26,214 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1633 transitions. Word has length 12 [2021-11-07 07:22:26,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:22:26,215 INFO L470 AbstractCegarLoop]: Abstraction has 1283 states and 1633 transitions. [2021-11-07 07:22:26,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:26,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1633 transitions. [2021-11-07 07:22:26,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-07 07:22:26,219 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:22:26,219 INFO L513 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] [2021-11-07 07:22:26,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 07:22:26,220 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:22:26,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:22:26,221 INFO L85 PathProgramCache]: Analyzing trace with hash -965110428, now seen corresponding path program 1 times [2021-11-07 07:22:26,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:22:26,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842611285] [2021-11-07 07:22:26,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:22:26,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:22:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:22:26,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:22:26,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:22:26,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842611285] [2021-11-07 07:22:26,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842611285] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:22:26,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:22:26,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:22:26,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472521127] [2021-11-07 07:22:26,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:22:26,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:22:26,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:22:26,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:22:26,390 INFO L87 Difference]: Start difference. First operand 1283 states and 1633 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:26,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:22:26,513 INFO L93 Difference]: Finished difference Result 3119 states and 4010 transitions. [2021-11-07 07:22:26,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:22:26,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-07 07:22:26,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:22:26,528 INFO L225 Difference]: With dead ends: 3119 [2021-11-07 07:22:26,528 INFO L226 Difference]: Without dead ends: 1844 [2021-11-07 07:22:26,531 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:22:26,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2021-11-07 07:22:26,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1840. [2021-11-07 07:22:26,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1840 states, 1827 states have (on average 1.30103995621237) internal successors, (2377), 1839 states have internal predecessors, (2377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:26,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1840 states to 1840 states and 2377 transitions. [2021-11-07 07:22:26,636 INFO L78 Accepts]: Start accepts. Automaton has 1840 states and 2377 transitions. Word has length 35 [2021-11-07 07:22:26,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:22:26,637 INFO L470 AbstractCegarLoop]: Abstraction has 1840 states and 2377 transitions. [2021-11-07 07:22:26,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:26,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1840 states and 2377 transitions. [2021-11-07 07:22:26,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 07:22:26,651 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:22:26,651 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 07:22:26,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 07:22:26,652 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:22:26,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:22:26,653 INFO L85 PathProgramCache]: Analyzing trace with hash -2056089327, now seen corresponding path program 1 times [2021-11-07 07:22:26,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:22:26,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369659723] [2021-11-07 07:22:26,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:22:26,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:22:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:22:26,878 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:22:26,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:22:26,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369659723] [2021-11-07 07:22:26,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369659723] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:22:26,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:22:26,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:22:26,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324919217] [2021-11-07 07:22:26,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:22:26,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:22:26,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:22:26,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:22:26,882 INFO L87 Difference]: Start difference. First operand 1840 states and 2377 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:27,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:22:27,240 INFO L93 Difference]: Finished difference Result 3679 states and 4752 transitions. [2021-11-07 07:22:27,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:22:27,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-07 07:22:27,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:22:27,253 INFO L225 Difference]: With dead ends: 3679 [2021-11-07 07:22:27,254 INFO L226 Difference]: Without dead ends: 1842 [2021-11-07 07:22:27,257 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:22:27,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2021-11-07 07:22:27,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 1838. [2021-11-07 07:22:27,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1825 states have (on average 1.2991780821917809) internal successors, (2371), 1837 states have internal predecessors, (2371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:27,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2371 transitions. [2021-11-07 07:22:27,361 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2371 transitions. Word has length 53 [2021-11-07 07:22:27,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:22:27,361 INFO L470 AbstractCegarLoop]: Abstraction has 1838 states and 2371 transitions. [2021-11-07 07:22:27,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:27,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2371 transitions. [2021-11-07 07:22:27,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 07:22:27,364 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:22:27,364 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:22:27,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 07:22:27,365 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:22:27,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:22:27,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1050619864, now seen corresponding path program 1 times [2021-11-07 07:22:27,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:22:27,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881540021] [2021-11-07 07:22:27,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:22:27,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:22:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:22:27,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:22:27,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:22:27,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881540021] [2021-11-07 07:22:27,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881540021] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:22:27,657 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:22:27,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:22:27,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326428918] [2021-11-07 07:22:27,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:22:27,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:22:27,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:22:27,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:22:27,660 INFO L87 Difference]: Start difference. First operand 1838 states and 2371 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:28,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:22:28,058 INFO L93 Difference]: Finished difference Result 5464 states and 7047 transitions. [2021-11-07 07:22:28,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:22:28,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-07 07:22:28,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:22:28,087 INFO L225 Difference]: With dead ends: 5464 [2021-11-07 07:22:28,087 INFO L226 Difference]: Without dead ends: 3632 [2021-11-07 07:22:28,094 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:22:28,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3632 states. [2021-11-07 07:22:28,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3632 to 1841. [2021-11-07 07:22:28,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1841 states, 1828 states have (on average 1.298140043763676) internal successors, (2373), 1840 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:28,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2373 transitions. [2021-11-07 07:22:28,250 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2373 transitions. Word has length 78 [2021-11-07 07:22:28,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:22:28,252 INFO L470 AbstractCegarLoop]: Abstraction has 1841 states and 2373 transitions. [2021-11-07 07:22:28,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:28,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2373 transitions. [2021-11-07 07:22:28,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 07:22:28,255 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:22:28,256 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:22:28,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 07:22:28,257 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:22:28,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:22:28,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1494520538, now seen corresponding path program 1 times [2021-11-07 07:22:28,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:22:28,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701305272] [2021-11-07 07:22:28,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:22:28,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:22:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:22:28,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:22:28,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:22:28,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701305272] [2021-11-07 07:22:28,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701305272] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:22:28,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:22:28,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:22:28,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139150397] [2021-11-07 07:22:28,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:22:28,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:22:28,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:22:28,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:22:28,510 INFO L87 Difference]: Start difference. First operand 1841 states and 2373 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:29,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:22:29,017 INFO L93 Difference]: Finished difference Result 5587 states and 7218 transitions. [2021-11-07 07:22:29,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:22:29,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-07 07:22:29,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:22:29,046 INFO L225 Difference]: With dead ends: 5587 [2021-11-07 07:22:29,046 INFO L226 Difference]: Without dead ends: 3755 [2021-11-07 07:22:29,052 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:22:29,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3755 states. [2021-11-07 07:22:29,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 1853. [2021-11-07 07:22:29,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1840 states have (on average 1.296195652173913) internal successors, (2385), 1852 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:29,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 2385 transitions. [2021-11-07 07:22:29,233 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 2385 transitions. Word has length 78 [2021-11-07 07:22:29,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:22:29,235 INFO L470 AbstractCegarLoop]: Abstraction has 1853 states and 2385 transitions. [2021-11-07 07:22:29,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:29,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 2385 transitions. [2021-11-07 07:22:29,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 07:22:29,238 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:22:29,238 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:22:29,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 07:22:29,238 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:22:29,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:22:29,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1517152792, now seen corresponding path program 1 times [2021-11-07 07:22:29,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:22:29,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597427121] [2021-11-07 07:22:29,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:22:29,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:22:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:22:29,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:22:29,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:22:29,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597427121] [2021-11-07 07:22:29,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597427121] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:22:29,481 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:22:29,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:22:29,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025105247] [2021-11-07 07:22:29,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:22:29,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:22:29,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:22:29,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:22:29,484 INFO L87 Difference]: Start difference. First operand 1853 states and 2385 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:38,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:22:38,901 INFO L93 Difference]: Finished difference Result 3616 states and 4663 transitions. [2021-11-07 07:22:38,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:22:38,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-07 07:22:38,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:22:38,927 INFO L225 Difference]: With dead ends: 3616 [2021-11-07 07:22:38,928 INFO L226 Difference]: Without dead ends: 3554 [2021-11-07 07:22:38,930 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:22:38,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3554 states. [2021-11-07 07:22:39,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3554 to 1853. [2021-11-07 07:22:39,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1840 states have (on average 1.295108695652174) internal successors, (2383), 1852 states have internal predecessors, (2383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:39,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 2383 transitions. [2021-11-07 07:22:39,107 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 2383 transitions. Word has length 78 [2021-11-07 07:22:39,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:22:39,109 INFO L470 AbstractCegarLoop]: Abstraction has 1853 states and 2383 transitions. [2021-11-07 07:22:39,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:39,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 2383 transitions. [2021-11-07 07:22:39,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 07:22:39,112 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:22:39,112 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:22:39,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 07:22:39,113 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:22:39,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:22:39,114 INFO L85 PathProgramCache]: Analyzing trace with hash 948357624, now seen corresponding path program 1 times [2021-11-07 07:22:39,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:22:39,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788361976] [2021-11-07 07:22:39,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:22:39,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:22:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:22:39,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:22:39,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:22:39,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788361976] [2021-11-07 07:22:39,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788361976] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:22:39,411 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:22:39,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:22:39,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228323877] [2021-11-07 07:22:39,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:22:39,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:22:39,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:22:39,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:22:39,418 INFO L87 Difference]: Start difference. First operand 1853 states and 2383 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:40,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:22:40,156 INFO L93 Difference]: Finished difference Result 2830 states and 3618 transitions. [2021-11-07 07:22:40,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:22:40,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 07:22:40,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:22:40,177 INFO L225 Difference]: With dead ends: 2830 [2021-11-07 07:22:40,178 INFO L226 Difference]: Without dead ends: 2806 [2021-11-07 07:22:40,179 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:22:40,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2021-11-07 07:22:40,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2756. [2021-11-07 07:22:40,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2756 states, 2743 states have (on average 1.2967553773240976) internal successors, (3557), 2755 states have internal predecessors, (3557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:40,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2756 states to 2756 states and 3557 transitions. [2021-11-07 07:22:40,414 INFO L78 Accepts]: Start accepts. Automaton has 2756 states and 3557 transitions. Word has length 79 [2021-11-07 07:22:40,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:22:40,416 INFO L470 AbstractCegarLoop]: Abstraction has 2756 states and 3557 transitions. [2021-11-07 07:22:40,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:40,416 INFO L276 IsEmpty]: Start isEmpty. Operand 2756 states and 3557 transitions. [2021-11-07 07:22:40,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 07:22:40,425 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:22:40,425 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:22:40,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 07:22:40,426 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:22:40,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:22:40,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1804226248, now seen corresponding path program 1 times [2021-11-07 07:22:40,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:22:40,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727395148] [2021-11-07 07:22:40,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:22:40,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:22:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:22:40,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:22:40,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:22:40,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727395148] [2021-11-07 07:22:40,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727395148] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:22:40,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:22:40,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:22:40,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999165284] [2021-11-07 07:22:40,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:22:40,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:22:40,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:22:40,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:22:40,832 INFO L87 Difference]: Start difference. First operand 2756 states and 3557 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:45,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:22:45,900 INFO L93 Difference]: Finished difference Result 6794 states and 8773 transitions. [2021-11-07 07:22:45,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:22:45,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 07:22:45,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:22:45,929 INFO L225 Difference]: With dead ends: 6794 [2021-11-07 07:22:45,929 INFO L226 Difference]: Without dead ends: 3952 [2021-11-07 07:22:45,935 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:22:45,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2021-11-07 07:22:46,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 2144. [2021-11-07 07:22:46,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2144 states, 2131 states have (on average 1.302674800563116) internal successors, (2776), 2143 states have internal predecessors, (2776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:46,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2144 states to 2144 states and 2776 transitions. [2021-11-07 07:22:46,200 INFO L78 Accepts]: Start accepts. Automaton has 2144 states and 2776 transitions. Word has length 79 [2021-11-07 07:22:46,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:22:46,200 INFO L470 AbstractCegarLoop]: Abstraction has 2144 states and 2776 transitions. [2021-11-07 07:22:46,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:46,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2144 states and 2776 transitions. [2021-11-07 07:22:46,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 07:22:46,203 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:22:46,203 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:22:46,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 07:22:46,204 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:22:46,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:22:46,205 INFO L85 PathProgramCache]: Analyzing trace with hash 559162765, now seen corresponding path program 1 times [2021-11-07 07:22:46,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:22:46,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622981297] [2021-11-07 07:22:46,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:22:46,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:22:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:22:46,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:22:46,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:22:46,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622981297] [2021-11-07 07:22:46,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622981297] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:22:46,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:22:46,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:22:46,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001506096] [2021-11-07 07:22:46,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:22:46,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:22:46,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:22:46,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:22:46,399 INFO L87 Difference]: Start difference. First operand 2144 states and 2776 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:54,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:22:54,487 INFO L93 Difference]: Finished difference Result 3914 states and 5068 transitions. [2021-11-07 07:22:54,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:22:54,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-07 07:22:54,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:22:54,512 INFO L225 Difference]: With dead ends: 3914 [2021-11-07 07:22:54,513 INFO L226 Difference]: Without dead ends: 3859 [2021-11-07 07:22:54,514 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:22:54,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3859 states. [2021-11-07 07:22:54,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3859 to 2149. [2021-11-07 07:22:54,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2149 states, 2136 states have (on average 1.301498127340824) internal successors, (2780), 2148 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:54,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2149 states to 2149 states and 2780 transitions. [2021-11-07 07:22:54,720 INFO L78 Accepts]: Start accepts. Automaton has 2149 states and 2780 transitions. Word has length 85 [2021-11-07 07:22:54,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:22:54,720 INFO L470 AbstractCegarLoop]: Abstraction has 2149 states and 2780 transitions. [2021-11-07 07:22:54,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:54,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2149 states and 2780 transitions. [2021-11-07 07:22:54,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 07:22:54,722 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:22:54,723 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:22:54,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 07:22:54,723 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:22:54,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:22:54,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1810418226, now seen corresponding path program 1 times [2021-11-07 07:22:54,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:22:54,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271376025] [2021-11-07 07:22:54,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:22:54,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:22:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:22:55,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:22:55,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:22:55,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271376025] [2021-11-07 07:22:55,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271376025] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:22:55,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:22:55,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:22:55,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293095135] [2021-11-07 07:22:55,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:22:55,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:22:55,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:22:55,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:22:55,028 INFO L87 Difference]: Start difference. First operand 2149 states and 2780 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:59,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:22:59,613 INFO L93 Difference]: Finished difference Result 5857 states and 7558 transitions. [2021-11-07 07:22:59,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:22:59,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-07 07:22:59,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:22:59,634 INFO L225 Difference]: With dead ends: 5857 [2021-11-07 07:22:59,634 INFO L226 Difference]: Without dead ends: 3975 [2021-11-07 07:22:59,639 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:22:59,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3975 states. [2021-11-07 07:22:59,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3975 to 2169. [2021-11-07 07:22:59,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2169 states, 2156 states have (on average 1.3000927643784788) internal successors, (2803), 2168 states have internal predecessors, (2803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:59,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 2803 transitions. [2021-11-07 07:22:59,854 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 2803 transitions. Word has length 86 [2021-11-07 07:22:59,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:22:59,854 INFO L470 AbstractCegarLoop]: Abstraction has 2169 states and 2803 transitions. [2021-11-07 07:22:59,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:59,855 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 2803 transitions. [2021-11-07 07:22:59,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 07:22:59,857 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:22:59,857 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:22:59,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 07:22:59,858 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:22:59,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:22:59,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1782949196, now seen corresponding path program 1 times [2021-11-07 07:22:59,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:22:59,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937336293] [2021-11-07 07:22:59,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:22:59,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:22:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:23:00,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:23:00,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:23:00,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937336293] [2021-11-07 07:23:00,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937336293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:23:00,048 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:23:00,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:23:00,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419501523] [2021-11-07 07:23:00,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:23:00,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:23:00,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:23:00,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:23:00,052 INFO L87 Difference]: Start difference. First operand 2169 states and 2803 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:00,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:23:00,720 INFO L93 Difference]: Finished difference Result 7126 states and 9227 transitions. [2021-11-07 07:23:00,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:23:00,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-07 07:23:00,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:23:00,751 INFO L225 Difference]: With dead ends: 7126 [2021-11-07 07:23:00,752 INFO L226 Difference]: Without dead ends: 5242 [2021-11-07 07:23:00,757 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:23:00,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5242 states. [2021-11-07 07:23:01,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5242 to 2169. [2021-11-07 07:23:01,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2169 states, 2156 states have (on average 1.2954545454545454) internal successors, (2793), 2168 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:01,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 2793 transitions. [2021-11-07 07:23:01,055 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 2793 transitions. Word has length 86 [2021-11-07 07:23:01,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:23:01,055 INFO L470 AbstractCegarLoop]: Abstraction has 2169 states and 2793 transitions. [2021-11-07 07:23:01,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:01,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 2793 transitions. [2021-11-07 07:23:01,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 07:23:01,058 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:23:01,058 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:23:01,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 07:23:01,059 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:23:01,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:23:01,059 INFO L85 PathProgramCache]: Analyzing trace with hash 268034802, now seen corresponding path program 1 times [2021-11-07 07:23:01,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:23:01,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771556497] [2021-11-07 07:23:01,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:23:01,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:23:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:23:01,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:23:01,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:23:01,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771556497] [2021-11-07 07:23:01,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771556497] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:23:01,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:23:01,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:23:01,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612982071] [2021-11-07 07:23:01,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:23:01,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:23:01,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:23:01,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:23:01,306 INFO L87 Difference]: Start difference. First operand 2169 states and 2793 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:02,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:23:02,424 INFO L93 Difference]: Finished difference Result 3541 states and 4547 transitions. [2021-11-07 07:23:02,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:23:02,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-07 07:23:02,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:23:02,435 INFO L225 Difference]: With dead ends: 3541 [2021-11-07 07:23:02,435 INFO L226 Difference]: Without dead ends: 3486 [2021-11-07 07:23:02,436 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:23:02,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3486 states. [2021-11-07 07:23:02,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3486 to 2214. [2021-11-07 07:23:02,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2214 states, 2201 states have (on average 1.2925942753293957) internal successors, (2845), 2213 states have internal predecessors, (2845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:02,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2214 states to 2214 states and 2845 transitions. [2021-11-07 07:23:02,662 INFO L78 Accepts]: Start accepts. Automaton has 2214 states and 2845 transitions. Word has length 86 [2021-11-07 07:23:02,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:23:02,663 INFO L470 AbstractCegarLoop]: Abstraction has 2214 states and 2845 transitions. [2021-11-07 07:23:02,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:02,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2214 states and 2845 transitions. [2021-11-07 07:23:02,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-07 07:23:02,665 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:23:02,666 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:23:02,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 07:23:02,666 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:23:02,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:23:02,667 INFO L85 PathProgramCache]: Analyzing trace with hash -642776665, now seen corresponding path program 1 times [2021-11-07 07:23:02,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:23:02,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742429321] [2021-11-07 07:23:02,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:23:02,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:23:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:23:02,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:23:02,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:23:02,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742429321] [2021-11-07 07:23:02,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742429321] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:23:02,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:23:02,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:23:02,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535839627] [2021-11-07 07:23:02,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:23:02,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:23:02,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:23:02,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:23:02,845 INFO L87 Difference]: Start difference. First operand 2214 states and 2845 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:12,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:23:12,675 INFO L93 Difference]: Finished difference Result 4028 states and 5175 transitions. [2021-11-07 07:23:12,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:23:12,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-11-07 07:23:12,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:23:12,686 INFO L225 Difference]: With dead ends: 4028 [2021-11-07 07:23:12,686 INFO L226 Difference]: Without dead ends: 3967 [2021-11-07 07:23:12,688 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:23:12,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3967 states. [2021-11-07 07:23:12,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3967 to 2225. [2021-11-07 07:23:13,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2225 states, 2212 states have (on average 1.2915913200723328) internal successors, (2857), 2224 states have internal predecessors, (2857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:13,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 2857 transitions. [2021-11-07 07:23:13,006 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 2857 transitions. Word has length 92 [2021-11-07 07:23:13,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:23:13,006 INFO L470 AbstractCegarLoop]: Abstraction has 2225 states and 2857 transitions. [2021-11-07 07:23:13,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:13,007 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 2857 transitions. [2021-11-07 07:23:13,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-07 07:23:13,008 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:23:13,009 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:23:13,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 07:23:13,010 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:23:13,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:23:13,011 INFO L85 PathProgramCache]: Analyzing trace with hash -2144683865, now seen corresponding path program 1 times [2021-11-07 07:23:13,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:23:13,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817262151] [2021-11-07 07:23:13,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:23:13,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:23:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:23:13,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:23:13,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:23:13,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817262151] [2021-11-07 07:23:13,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817262151] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:23:13,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:23:13,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:23:13,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717811557] [2021-11-07 07:23:13,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:23:13,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:23:13,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:23:13,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:23:13,221 INFO L87 Difference]: Start difference. First operand 2225 states and 2857 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:18,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:23:18,791 INFO L93 Difference]: Finished difference Result 6090 states and 7800 transitions. [2021-11-07 07:23:18,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:23:18,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-11-07 07:23:18,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:23:18,800 INFO L225 Difference]: With dead ends: 6090 [2021-11-07 07:23:18,801 INFO L226 Difference]: Without dead ends: 4138 [2021-11-07 07:23:18,806 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:23:18,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4138 states. [2021-11-07 07:23:19,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4138 to 2236. [2021-11-07 07:23:19,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2236 states, 2223 states have (on average 1.2905982905982907) internal successors, (2869), 2235 states have internal predecessors, (2869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:19,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 2869 transitions. [2021-11-07 07:23:19,136 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 2869 transitions. Word has length 93 [2021-11-07 07:23:19,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:23:19,136 INFO L470 AbstractCegarLoop]: Abstraction has 2236 states and 2869 transitions. [2021-11-07 07:23:19,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:19,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 2869 transitions. [2021-11-07 07:23:19,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-07 07:23:19,139 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:23:19,139 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:23:19,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-07 07:23:19,139 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:23:19,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:23:19,140 INFO L85 PathProgramCache]: Analyzing trace with hash 607900007, now seen corresponding path program 1 times [2021-11-07 07:23:19,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:23:19,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951452189] [2021-11-07 07:23:19,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:23:19,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:23:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:23:19,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:23:19,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:23:19,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951452189] [2021-11-07 07:23:19,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951452189] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:23:19,358 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:23:19,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:23:19,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336510799] [2021-11-07 07:23:19,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 07:23:19,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:23:19,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 07:23:19,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:23:19,361 INFO L87 Difference]: Start difference. First operand 2236 states and 2869 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:20,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:23:20,133 INFO L93 Difference]: Finished difference Result 4362 states and 5593 transitions. [2021-11-07 07:23:20,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:23:20,133 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-11-07 07:23:20,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:23:20,145 INFO L225 Difference]: With dead ends: 4362 [2021-11-07 07:23:20,146 INFO L226 Difference]: Without dead ends: 4243 [2021-11-07 07:23:20,148 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:23:20,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4243 states. [2021-11-07 07:23:20,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4243 to 2245. [2021-11-07 07:23:20,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2245 states, 2232 states have (on average 1.2898745519713262) internal successors, (2879), 2244 states have internal predecessors, (2879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:20,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2245 states to 2245 states and 2879 transitions. [2021-11-07 07:23:20,454 INFO L78 Accepts]: Start accepts. Automaton has 2245 states and 2879 transitions. Word has length 93 [2021-11-07 07:23:20,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:23:20,455 INFO L470 AbstractCegarLoop]: Abstraction has 2245 states and 2879 transitions. [2021-11-07 07:23:20,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:20,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2245 states and 2879 transitions. [2021-11-07 07:23:20,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-07 07:23:20,458 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:23:20,458 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:23:20,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-07 07:23:20,459 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:23:20,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:23:20,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1307096688, now seen corresponding path program 1 times [2021-11-07 07:23:20,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:23:20,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94733099] [2021-11-07 07:23:20,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:23:20,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:23:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:23:20,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:23:20,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:23:20,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94733099] [2021-11-07 07:23:20,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94733099] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:23:20,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:23:20,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:23:20,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803529950] [2021-11-07 07:23:20,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:23:20,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:23:20,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:23:20,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:23:20,644 INFO L87 Difference]: Start difference. First operand 2245 states and 2879 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:21,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:23:21,202 INFO L93 Difference]: Finished difference Result 4141 states and 5304 transitions. [2021-11-07 07:23:21,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:23:21,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-11-07 07:23:21,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:23:21,209 INFO L225 Difference]: With dead ends: 4141 [2021-11-07 07:23:21,209 INFO L226 Difference]: Without dead ends: 2190 [2021-11-07 07:23:21,214 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:23:21,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2021-11-07 07:23:21,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 2180. [2021-11-07 07:23:21,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2167 states have (on average 1.2833410244577756) internal successors, (2781), 2179 states have internal predecessors, (2781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:21,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 2781 transitions. [2021-11-07 07:23:21,650 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 2781 transitions. Word has length 98 [2021-11-07 07:23:21,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:23:21,651 INFO L470 AbstractCegarLoop]: Abstraction has 2180 states and 2781 transitions. [2021-11-07 07:23:21,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:21,652 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 2781 transitions. [2021-11-07 07:23:21,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-07 07:23:21,654 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:23:21,654 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:23:21,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-07 07:23:21,655 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:23:21,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:23:21,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1984260860, now seen corresponding path program 1 times [2021-11-07 07:23:21,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:23:21,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137430396] [2021-11-07 07:23:21,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:23:21,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:23:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:23:21,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:23:21,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:23:21,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137430396] [2021-11-07 07:23:21,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137430396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:23:21,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:23:21,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:23:21,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494772477] [2021-11-07 07:23:21,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:23:21,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:23:21,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:23:21,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:23:21,876 INFO L87 Difference]: Start difference. First operand 2180 states and 2781 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:27,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:23:27,958 INFO L93 Difference]: Finished difference Result 2190 states and 2788 transitions. [2021-11-07 07:23:27,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:23:27,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-11-07 07:23:27,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:23:27,965 INFO L225 Difference]: With dead ends: 2190 [2021-11-07 07:23:27,965 INFO L226 Difference]: Without dead ends: 2156 [2021-11-07 07:23:27,967 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:23:27,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2021-11-07 07:23:28,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2152. [2021-11-07 07:23:28,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2152 states, 2140 states have (on average 1.2855140186915888) internal successors, (2751), 2151 states have internal predecessors, (2751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:28,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2152 states to 2152 states and 2751 transitions. [2021-11-07 07:23:28,342 INFO L78 Accepts]: Start accepts. Automaton has 2152 states and 2751 transitions. Word has length 99 [2021-11-07 07:23:28,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:23:28,343 INFO L470 AbstractCegarLoop]: Abstraction has 2152 states and 2751 transitions. [2021-11-07 07:23:28,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:28,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2152 states and 2751 transitions. [2021-11-07 07:23:28,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-07 07:23:28,346 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:23:28,346 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:23:28,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-07 07:23:28,347 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:23:28,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:23:28,348 INFO L85 PathProgramCache]: Analyzing trace with hash 973251299, now seen corresponding path program 1 times [2021-11-07 07:23:28,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:23:28,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728579484] [2021-11-07 07:23:28,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:23:28,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:23:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:23:28,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:23:28,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:23:28,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728579484] [2021-11-07 07:23:28,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728579484] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:23:28,627 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:23:28,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:23:28,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945440768] [2021-11-07 07:23:28,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:23:28,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:23:28,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:23:28,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:23:28,629 INFO L87 Difference]: Start difference. First operand 2152 states and 2751 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:29,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:23:29,066 INFO L93 Difference]: Finished difference Result 2160 states and 2757 transitions. [2021-11-07 07:23:29,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:23:29,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2021-11-07 07:23:29,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:23:29,072 INFO L225 Difference]: With dead ends: 2160 [2021-11-07 07:23:29,072 INFO L226 Difference]: Without dead ends: 2156 [2021-11-07 07:23:29,073 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:23:29,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2021-11-07 07:23:29,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2152. [2021-11-07 07:23:29,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2152 states, 2140 states have (on average 1.2845794392523364) internal successors, (2749), 2151 states have internal predecessors, (2749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:29,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2152 states to 2152 states and 2749 transitions. [2021-11-07 07:23:29,430 INFO L78 Accepts]: Start accepts. Automaton has 2152 states and 2749 transitions. Word has length 126 [2021-11-07 07:23:29,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:23:29,431 INFO L470 AbstractCegarLoop]: Abstraction has 2152 states and 2749 transitions. [2021-11-07 07:23:29,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:29,432 INFO L276 IsEmpty]: Start isEmpty. Operand 2152 states and 2749 transitions. [2021-11-07 07:23:29,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-07 07:23:29,434 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:23:29,435 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:23:29,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-07 07:23:29,436 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:23:29,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:23:29,437 INFO L85 PathProgramCache]: Analyzing trace with hash 451476494, now seen corresponding path program 1 times [2021-11-07 07:23:29,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:23:29,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468630263] [2021-11-07 07:23:29,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:23:29,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:23:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:23:29,664 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:23:29,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:23:29,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468630263] [2021-11-07 07:23:29,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468630263] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:23:29,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:23:29,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:23:29,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678957751] [2021-11-07 07:23:29,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:23:29,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:23:29,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:23:29,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:23:29,670 INFO L87 Difference]: Start difference. First operand 2152 states and 2749 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:32,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:23:32,706 INFO L93 Difference]: Finished difference Result 4067 states and 5172 transitions. [2021-11-07 07:23:32,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:23:32,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2021-11-07 07:23:32,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:23:32,712 INFO L225 Difference]: With dead ends: 4067 [2021-11-07 07:23:32,713 INFO L226 Difference]: Without dead ends: 2201 [2021-11-07 07:23:32,717 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:23:32,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2201 states. [2021-11-07 07:23:33,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2201 to 2154. [2021-11-07 07:23:33,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2154 states, 2142 states have (on average 1.284780578898226) internal successors, (2752), 2153 states have internal predecessors, (2752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:33,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2154 states to 2154 states and 2752 transitions. [2021-11-07 07:23:33,106 INFO L78 Accepts]: Start accepts. Automaton has 2154 states and 2752 transitions. Word has length 131 [2021-11-07 07:23:33,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:23:33,107 INFO L470 AbstractCegarLoop]: Abstraction has 2154 states and 2752 transitions. [2021-11-07 07:23:33,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:33,108 INFO L276 IsEmpty]: Start isEmpty. Operand 2154 states and 2752 transitions. [2021-11-07 07:23:33,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-07 07:23:33,110 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:23:33,111 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:23:33,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-07 07:23:33,112 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:23:33,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:23:33,113 INFO L85 PathProgramCache]: Analyzing trace with hash -555431090, now seen corresponding path program 1 times [2021-11-07 07:23:33,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:23:33,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158749084] [2021-11-07 07:23:33,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:23:33,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:23:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:23:33,389 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:23:33,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:23:33,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158749084] [2021-11-07 07:23:33,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158749084] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:23:33,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332367841] [2021-11-07 07:23:33,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:23:33,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:23:33,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:23:33,396 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:23:33,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 07:23:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:23:34,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 2217 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 07:23:34,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:23:34,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:23:34,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332367841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:23:34,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 07:23:34,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-11-07 07:23:34,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399263918] [2021-11-07 07:23:34,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:23:34,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:23:34,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:23:34,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:23:34,785 INFO L87 Difference]: Start difference. First operand 2154 states and 2752 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:35,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:23:35,240 INFO L93 Difference]: Finished difference Result 4018 states and 5120 transitions. [2021-11-07 07:23:35,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:23:35,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2021-11-07 07:23:35,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:23:35,244 INFO L225 Difference]: With dead ends: 4018 [2021-11-07 07:23:35,245 INFO L226 Difference]: Without dead ends: 2158 [2021-11-07 07:23:35,249 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:23:35,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2021-11-07 07:23:35,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 2154. [2021-11-07 07:23:35,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2154 states, 2142 states have (on average 1.2829131652661065) internal successors, (2748), 2153 states have internal predecessors, (2748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:35,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2154 states to 2154 states and 2748 transitions. [2021-11-07 07:23:35,588 INFO L78 Accepts]: Start accepts. Automaton has 2154 states and 2748 transitions. Word has length 131 [2021-11-07 07:23:35,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:23:35,589 INFO L470 AbstractCegarLoop]: Abstraction has 2154 states and 2748 transitions. [2021-11-07 07:23:35,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:35,589 INFO L276 IsEmpty]: Start isEmpty. Operand 2154 states and 2748 transitions. [2021-11-07 07:23:35,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-07 07:23:35,593 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:23:35,593 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:23:35,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 07:23:35,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:23:35,808 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:23:35,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:23:35,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1591853852, now seen corresponding path program 1 times [2021-11-07 07:23:35,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:23:35,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481660331] [2021-11-07 07:23:35,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:23:35,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:23:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:23:36,159 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:23:36,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:23:36,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481660331] [2021-11-07 07:23:36,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481660331] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:23:36,161 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:23:36,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:23:36,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632940377] [2021-11-07 07:23:36,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:23:36,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:23:36,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:23:36,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:23:36,163 INFO L87 Difference]: Start difference. First operand 2154 states and 2748 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:36,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:23:36,710 INFO L93 Difference]: Finished difference Result 4077 states and 5182 transitions. [2021-11-07 07:23:36,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:23:36,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2021-11-07 07:23:36,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:23:36,715 INFO L225 Difference]: With dead ends: 4077 [2021-11-07 07:23:36,716 INFO L226 Difference]: Without dead ends: 2217 [2021-11-07 07:23:36,720 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:23:36,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2217 states. [2021-11-07 07:23:37,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2217 to 2124. [2021-11-07 07:23:37,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2124 states, 2112 states have (on average 1.2727272727272727) internal successors, (2688), 2123 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:37,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2124 states to 2124 states and 2688 transitions. [2021-11-07 07:23:37,091 INFO L78 Accepts]: Start accepts. Automaton has 2124 states and 2688 transitions. Word has length 139 [2021-11-07 07:23:37,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:23:37,092 INFO L470 AbstractCegarLoop]: Abstraction has 2124 states and 2688 transitions. [2021-11-07 07:23:37,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:23:37,093 INFO L276 IsEmpty]: Start isEmpty. Operand 2124 states and 2688 transitions. [2021-11-07 07:23:37,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-07 07:23:37,096 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:23:37,096 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:23:37,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-07 07:23:37,097 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:23:37,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:23:37,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1634788380, now seen corresponding path program 1 times [2021-11-07 07:23:37,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:23:37,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634822755] [2021-11-07 07:23:37,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:23:37,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:23:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:23:38,362 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:23:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:23:39,862 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:23:39,862 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 07:23:39,863 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:23:39,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:23:39,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:23:39,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:23:39,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:23:39,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:23:39,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:23:39,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:23:39,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:23:39,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:23:39,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:23:39,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:23:39,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:23:39,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:23:39,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-07 07:23:39,876 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:23:39,881 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 07:23:40,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:23:40 BoogieIcfgContainer [2021-11-07 07:23:40,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 07:23:40,636 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 07:23:40,636 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 07:23:40,637 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 07:23:40,637 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:22:24" (3/4) ... [2021-11-07 07:23:40,643 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 07:23:40,643 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 07:23:40,645 INFO L168 Benchmark]: Toolchain (without parser) took 85762.80 ms. Allocated memory was 100.7 MB in the beginning and 534.8 MB in the end (delta: 434.1 MB). Free memory was 51.9 MB in the beginning and 377.0 MB in the end (delta: -325.1 MB). Peak memory consumption was 108.7 MB. Max. memory is 16.1 GB. [2021-11-07 07:23:40,646 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 100.7 MB. Free memory was 77.4 MB in the beginning and 77.3 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:23:40,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2649.76 ms. Allocated memory was 100.7 MB in the beginning and 216.0 MB in the end (delta: 115.3 MB). Free memory was 51.7 MB in the beginning and 130.0 MB in the end (delta: -78.4 MB). Peak memory consumption was 73.7 MB. Max. memory is 16.1 GB. [2021-11-07 07:23:40,647 INFO L168 Benchmark]: Boogie Procedure Inliner took 313.29 ms. Allocated memory is still 216.0 MB. Free memory was 130.0 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:23:40,648 INFO L168 Benchmark]: Boogie Preprocessor took 292.58 ms. Allocated memory is still 216.0 MB. Free memory was 107.0 MB in the beginning and 84.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-11-07 07:23:40,649 INFO L168 Benchmark]: RCFGBuilder took 6096.71 ms. Allocated memory was 216.0 MB in the beginning and 293.6 MB in the end (delta: 77.6 MB). Free memory was 84.9 MB in the beginning and 205.1 MB in the end (delta: -120.1 MB). Peak memory consumption was 74.3 MB. Max. memory is 16.1 GB. [2021-11-07 07:23:40,649 INFO L168 Benchmark]: TraceAbstraction took 76390.51 ms. Allocated memory was 293.6 MB in the beginning and 534.8 MB in the end (delta: 241.2 MB). Free memory was 204.0 MB in the beginning and 377.0 MB in the end (delta: -173.0 MB). Peak memory consumption was 328.2 MB. Max. memory is 16.1 GB. [2021-11-07 07:23:40,650 INFO L168 Benchmark]: Witness Printer took 7.01 ms. Allocated memory is still 534.8 MB. Free memory is still 377.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:23:40,656 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 100.7 MB. Free memory was 77.4 MB in the beginning and 77.3 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2649.76 ms. Allocated memory was 100.7 MB in the beginning and 216.0 MB in the end (delta: 115.3 MB). Free memory was 51.7 MB in the beginning and 130.0 MB in the end (delta: -78.4 MB). Peak memory consumption was 73.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 313.29 ms. Allocated memory is still 216.0 MB. Free memory was 130.0 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 292.58 ms. Allocated memory is still 216.0 MB. Free memory was 107.0 MB in the beginning and 84.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 6096.71 ms. Allocated memory was 216.0 MB in the beginning and 293.6 MB in the end (delta: 77.6 MB). Free memory was 84.9 MB in the beginning and 205.1 MB in the end (delta: -120.1 MB). Peak memory consumption was 74.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 76390.51 ms. Allocated memory was 293.6 MB in the beginning and 534.8 MB in the end (delta: 241.2 MB). Free memory was 204.0 MB in the beginning and 377.0 MB in the end (delta: -173.0 MB). Peak memory consumption was 328.2 MB. Max. memory is 16.1 GB. * Witness Printer took 7.01 ms. Allocated memory is still 534.8 MB. Free memory is still 377.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 6946]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 6635, overapproximation of bitwiseOr at line 5696, overapproximation of shiftLeft at line 5141, overapproximation of bitwiseAnd at line 4928. Possible FailurePath: [L5170-L5181] static char const __mod_author63[40] __attribute__((__used__, __unused__, __section__(".modinfo"), __aligned__(1))) = { (char const )'a', (char const )'u', (char const )'t', (char const )'h', (char const )'o', (char const )'r', (char const )'=', (char const )'V', (char const )'o', (char const )'j', (char const )'t', (char const )'e', (char const )'c', (char const )'h', (char const )' ', (char const )'P', (char const )'a', (char const )'v', (char const )'l', (char const )'i', (char const )'k', (char const )' ', (char const )'<', (char const )'v', (char const )'o', (char const )'j', (char const )'t', (char const )'e', (char const )'c', (char const )'h', (char const )'@', (char const )'s', (char const )'u', (char const )'s', (char const )'e', (char const )'.', (char const )'c', (char const )'z', (char const )'>', (char const )'\000'}; [L5182-L5197] static char const __mod_description64[53] __attribute__((__used__, __unused__, __section__(".modinfo"), __aligned__(1))) = { (char const )'d', (char const )'e', (char const )'s', (char const )'c', (char const )'r', (char const )'i', (char const )'p', (char const )'t', (char const )'i', (char const )'o', (char const )'n', (char const )'=', (char const )'C', (char const )'A', (char const )'T', (char const )'C', (char const )' ', (char const )'E', (char const )'L', (char const )'1', (char const )'2', (char const )'1', (char const )'0', (char const )'A', (char const )' ', (char const )'N', (char const )'e', (char const )'t', (char const )'M', (char const )'a', (char const )'t', (char const )'e', (char const )' ', (char const )'U', (char const )'S', (char const )'B', (char const )' ', (char const )'E', (char const )'t', (char const )'h', (char const )'e', (char const )'r', (char const )'n', (char const )'e', (char const )'t', (char const )' ', (char const )'d', (char const )'r', (char const )'i', (char const )'v', (char const )'e', (char const )'r', (char const )'\000'}; [L5198-L5202] static char const __mod_license65[12] __attribute__((__used__, __unused__, __section__(".modinfo"), __aligned__(1))) = { (char const )'l', (char const )'i', (char const )'c', (char const )'e', (char const )'n', (char const )'s', (char const )'e', (char const )'=', (char const )'G', (char const )'P', (char const )'L', (char const )'\000'}; [L5203-L5204] static char const driver_name[5] = { (char const )'c', (char const )'a', (char const )'t', (char const )'c', (char const )'\000'}; [L6129-L6176] static struct ethtool_ops const ops = {& catc_get_settings, (int (*)(struct net_device * , struct ethtool_cmd * ))0, & catc_get_drvinfo, (int (*)(struct net_device * ))0, (void (*)(struct net_device * , struct ethtool_regs * , void * ))0, (void (*)(struct net_device * , struct ethtool_wolinfo * ))0, (int (*)(struct net_device * , struct ethtool_wolinfo * ))0, (u32 (*)(struct net_device * ))0, (void (*)(struct net_device * , u32 ))0, (int (*)(struct net_device * ))0, & ethtool_op_get_link, (int (*)(struct net_device * ))0, (int (*)(struct net_device * , struct ethtool_eeprom * , u8 * ))0, (int (*)(struct net_device * , struct ethtool_eeprom * , u8 * ))0, (int (*)(struct net_device * , struct ethtool_coalesce * ))0, (int (*)(struct net_device * , struct ethtool_coalesce * ))0, (void (*)(struct net_device * , struct ethtool_ringparam * ))0, (int (*)(struct net_device * , struct ethtool_ringparam * ))0, (void (*)(struct net_device * , struct ethtool_pauseparam * ))0, (int (*)(struct net_device * , struct ethtool_pauseparam * ))0, (u32 (*)(struct net_device * ))0, (int (*)(struct net_device * , u32 ))0, (u32 (*)(struct net_device * ))0, (int (*)(struct net_device * , u32 ))0, (u32 (*)(struct net_device * ))0, (int (*)(struct net_device * , u32 ))0, (u32 (*)(struct net_device * ))0, (int (*)(struct net_device * , u32 ))0, (void (*)(struct net_device * , struct ethtool_test * , u64 * ))0, (void (*)(struct net_device * , u32 stringset , u8 * ))0, (int (*)(struct net_device * , enum ethtool_phys_id_state ))0, (void (*)(struct net_device * , struct ethtool_stats * , u64 * ))0, (int (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (u32 (*)(struct net_device * ))0, (int (*)(struct net_device * , u32 ))0, (u32 (*)(struct net_device * ))0, (int (*)(struct net_device * , u32 ))0, (u32 (*)(struct net_device * ))0, (int (*)(struct net_device * , u32 ))0, (int (*)(struct net_device * , int ))0, (int (*)(struct net_device * , struct ethtool_rxnfc * , void * ))0, (int (*)(struct net_device * , struct ethtool_rxnfc * ))0, (int (*)(struct net_device * , struct ethtool_flash * ))0, (int (*)(struct net_device * , u32 * ))0, (int (*)(struct net_device * , struct ethtool_rx_ntuple * ))0, (int (*)(struct net_device * , u32 stringset , void * ))0, (int (*)(struct net_device * , struct ethtool_rxfh_indir * ))0, (int (*)(struct net_device * , struct ethtool_rxfh_indir const * ))0, (void (*)(struct net_device * , struct ethtool_channels * ))0, (int (*)(struct net_device * , struct ethtool_channels * ))0, (int (*)(struct net_device * , struct ethtool_dump * ))0, (int (*)(struct net_device * , struct ethtool_dump * , void * ))0, (int (*)(struct net_device * , struct ethtool_dump * ))0}; [L6231-L6269] static struct net_device_ops const catc_netdev_ops = {(int (*)(struct net_device *dev ))0, (void (*)(struct net_device *dev ))0, & catc_open, & catc_stop, & catc_start_xmit, (u16 (*)(struct net_device *dev , struct sk_buff *skb ))0, (void (*)(struct net_device *dev , int flags ))0, (void (*)(struct net_device *dev ))0, & catc_set_multicast_list, & eth_mac_addr, & eth_validate_addr, (int (*)(struct net_device *dev , struct ifreq *ifr , int cmd ))0, (int (*)(struct net_device *dev , struct ifmap *map ))0, & eth_change_mtu, (int (*)(struct net_device *dev , struct neigh_parms * ))0, & catc_tx_timeout, (struct rtnl_link_stats64 *(*)(struct net_device *dev , struct rtnl_link_stats64 *storage ))0, (struct net_device_stats *(*)(struct net_device *dev ))0, (void (*)(struct net_device *dev , struct vlan_group *grp ))0, (void (*)(struct net_device *dev , unsigned short vid ))0, (void (*)(struct net_device *dev , unsigned short vid ))0, (void (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , struct netpoll_info *info ))0, (void (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , int queue , u8 *mac ))0, (int (*)(struct net_device *dev , int queue , u16 vlan , u8 qos ))0, (int (*)(struct net_device *dev , int vf , int rate ))0, (int (*)(struct net_device *dev , int vf , struct ifla_vf_info *ivf ))0, (int (*)(struct net_device *dev , int vf , struct nlattr **port ))0, (int (*)(struct net_device *dev , int vf , struct sk_buff *skb ))0, (int (*)(struct net_device *dev , u8 tc ))0, (int (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , u16 xid , struct scatterlist *sgl , unsigned int sgc ))0, (int (*)(struct net_device *dev , u16 xid ))0, (int (*)(struct net_device *dev , u16 xid , struct scatterlist *sgl , unsigned int sgc ))0, (int (*)(struct net_device *dev , u64 *wwn , int type ))0, (int (*)(struct net_device *dev , struct sk_buff const *skb , u16 rxq_index , u32 flow_id ))0, (int (*)(struct net_device *dev , struct net_device *slave_dev ))0, (int (*)(struct net_device *dev , struct net_device *slave_dev ))0, (u32 (*)(struct net_device *dev , u32 features ))0, (int (*)(struct net_device *dev , u32 features ))0}; [L6270] static struct lock_class_key __key___9 ; [L6271] static struct lock_class_key __key___10 ; [L6272] static struct lock_class_key __key___11 ; [L6684-L6692] static struct usb_device_id catc_id_table[3] = { {(__u16 )3, (__u16 )1059, (__u16 )10, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {(__u16 )3, (__u16 )1059, (__u16 )12, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {(__u16 )3, (__u16 )2257, (__u16 )1, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}}; [L6695-L6710] static struct usb_driver catc_driver = {driver_name, & catc_probe, & catc_disconnect, (int (*)(struct usb_interface *intf , unsigned int code , void *buf ))0, (int (*)(struct usb_interface *intf , pm_message_t message ))0, (int (*)(struct usb_interface *intf ))0, (int (*)(struct usb_interface *intf ))0, (int (*)(struct usb_interface *intf ))0, (int (*)(struct usb_interface *intf ))0, (struct usb_device_id const *)(catc_id_table), {{{{{0U}, 0U, 0U, (void *)0, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, (char const *)0, 0, 0UL}}}}, {(struct list_head *)0, (struct list_head *)0}}, {{(char const *)0, (struct bus_type *)0, (struct module *)0, (char const *)0, (_Bool)0, (struct of_device_id const *)0, (int (*)(struct device *dev ))0, (int (*)(struct device *dev ))0, (void (*)(struct device *dev ))0, (int (*)(struct device *dev , pm_message_t state ))0, (int (*)(struct device *dev ))0, (struct attribute_group const **)0, (struct dev_pm_ops const *)0, (struct driver_private *)0}, 0}, 0U, 0U, 0U}; [L6763] int LDV_IN_INTERRUPT ; [L6764] static int res_catc_open_15 ; [L6765] static int res_catc_stop_16 ; [L6766] static int res_catc_probe_17 ; [L6959] int ldv_urb_state = 0; [L6960] int ldv_coherent_state = 0; VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=0, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6768] struct net_device *var_group1 ; [L6769] struct ethtool_drvinfo *var_group2 ; [L6770] struct ethtool_cmd *var_group3 ; [L6771] struct sk_buff *var_group4 ; [L6772] struct usb_interface *var_group5 ; [L6773] struct usb_device_id const *var_catc_probe_17_p1 ; [L6774] unsigned long var_catc_stats_timer_10_p0 ; [L6775] int tmp___7 ; [L6776] int ldv_s_catc_netdev_ops_net_device_ops ; [L6777] int ldv_s_catc_driver_usb_driver ; [L6778] int tmp___8 ; [L6779] int tmp___9 ; [L6782] LDV_IN_INTERRUPT = 1 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6714] int result ; [L6715] int tmp___7 ; [L5088] int tmp___7 ; [L7209] return __VERIFIER_nondet_int(); [L5091] tmp___7 = usb_register_driver(driver, & __this_module, "catc") [L5093] return (tmp___7); VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6718] tmp___7 = usb_register(& catc_driver) [L6719] result = tmp___7 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6721] COND TRUE result == 0 [L6727] return (result); VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6784] tmp___7 = catc_init() [L6786] COND FALSE !(\read(tmp___7)) [L6790] ldv_s_catc_netdev_ops_net_device_ops = 0 [L6791] ldv_s_catc_driver_usb_driver = 0 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6793] COND TRUE 1 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6796] tmp___9 = __VERIFIER_nondet_int() [L6798] COND TRUE \read(tmp___9) VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6807] tmp___8 = __VERIFIER_nondet_int() [L6809] COND FALSE !(tmp___8 == 0) VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6812] COND FALSE !(tmp___8 == 1) VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6815] COND FALSE !(tmp___8 == 2) VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6818] COND FALSE !(tmp___8 == 3) VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6821] COND FALSE !(tmp___8 == 4) VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6824] COND FALSE !(tmp___8 == 5) VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6827] COND FALSE !(tmp___8 == 6) VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6830] COND TRUE tmp___8 == 7 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6895] COND TRUE ldv_s_catc_driver_usb_driver == 0 [L6274] struct usb_device *usbdev ; [L6275] struct usb_device *tmp___7 ; [L6276] struct net_device *netdev ; [L6277] struct catc *catc ; [L6278] u8 broadcast[6] ; [L6279] int i ; [L6280] int pktsz ; [L6281] int tmp___8 ; [L6282] void *tmp___9 ; [L6283] unsigned int tmp___10 ; [L6284] unsigned int tmp___11 ; [L6285] unsigned int tmp___12 ; [L6286] unsigned int tmp___13 ; [L6287] char const *tmp___14 ; [L6288] int tmp___15 ; [L5065] struct device const *__mptr ; [L5067] EXPR intf->dev.parent [L5067] __mptr = (struct device const *)intf->dev.parent [L5068] return ((struct usb_device *)((char *)__mptr - (unsigned int )(& ((struct usb_device *)0)->dev))); VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6291] tmp___7 = interface_to_usbdev(intf) [L6292] usbdev = tmp___7 [L6293] EXPR intf->altsetting [L6293] EXPR (intf->altsetting)->desc.bInterfaceNumber [L7213] return __VERIFIER_nondet_int(); [L6293-L6294] tmp___8 = usb_set_interface(usbdev, (int )(intf->altsetting)->desc.bInterfaceNumber, 1) [L6296] COND FALSE !(\read(tmp___8)) [L7113] COND FALSE !(__VERIFIER_nondet_bool()) [L7114] return malloc(size); [L7117] return ldv_malloc(sizeof(struct net_device)); [L6304] netdev = alloc_etherdev_mqs((int )sizeof(struct catc ), 1U, 1U) [L6306] COND FALSE !(! netdev) [L4928] return ((void *)((char *)dev + ((sizeof(struct net_device ) + 31UL) & 0x0fffffffffffffe0UL))); VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6311] tmp___9 = netdev_priv((struct net_device const *)netdev) [L6312] catc = (struct catc *)tmp___9 [L6313] netdev->netdev_ops = & catc_netdev_ops [L6314] netdev->watchdog_timeo = 1250 [L6315] netdev->ethtool_ops = & ops [L6316] catc->usbdev = usbdev [L6317] catc->netdev = netdev VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6320] COND TRUE 1 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L4851] return (& lock->__annonCompField18.rlock); VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6326] COND TRUE 1 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6343] COND TRUE 1 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L4851] return (& lock->__annonCompField18.rlock); VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6349] COND TRUE 1 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6366] COND TRUE 1 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6377] catc->timer.data = (unsigned long )((long )catc) [L6378] catc->timer.function = & catc_stats_timer [L7022] void *arbitrary_memory ; [L7023] void *tmp___7 ; VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7026] COND TRUE 1 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7113] COND FALSE !(__VERIFIER_nondet_bool()) [L7114] return malloc(size); [L7161] return ldv_malloc(0UL); [L7029] tmp___7 = ldv_undefined_pointer() [L7030] arbitrary_memory = tmp___7 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7032] COND FALSE !(! arbitrary_memory) [L7036] ldv_urb_state = ldv_urb_state + 1 [L7037] return ((struct urb *)arbitrary_memory); VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6379] catc->ctrl_urb = usb_alloc_urb(0, 208U) [L7022] void *arbitrary_memory ; [L7023] void *tmp___7 ; VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7026] COND TRUE 1 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7113] COND FALSE !(__VERIFIER_nondet_bool()) [L7114] return malloc(size); [L7161] return ldv_malloc(0UL); [L7029] tmp___7 = ldv_undefined_pointer() [L7030] arbitrary_memory = tmp___7 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7032] COND FALSE !(! arbitrary_memory) [L7036] ldv_urb_state = ldv_urb_state + 1 [L7037] return ((struct urb *)arbitrary_memory); VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=2, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6380] catc->tx_urb = usb_alloc_urb(0, 208U) [L7022] void *arbitrary_memory ; [L7023] void *tmp___7 ; VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=2, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7026] COND TRUE 1 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=2, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7113] COND FALSE !(__VERIFIER_nondet_bool()) [L7114] return malloc(size); [L7161] return ldv_malloc(0UL); [L7029] tmp___7 = ldv_undefined_pointer() [L7030] arbitrary_memory = tmp___7 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=2, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7032] COND FALSE !(! arbitrary_memory) [L7036] ldv_urb_state = ldv_urb_state + 1 [L7037] return ((struct urb *)arbitrary_memory); VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=3, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6381] catc->rx_urb = usb_alloc_urb(0, 208U) [L7022] void *arbitrary_memory ; [L7023] void *tmp___7 ; VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=3, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7026] COND TRUE 1 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=3, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7113] COND FALSE !(__VERIFIER_nondet_bool()) [L7114] return malloc(size); [L7161] return ldv_malloc(0UL); [L7029] tmp___7 = ldv_undefined_pointer() [L7030] arbitrary_memory = tmp___7 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=3, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7032] COND FALSE !(! arbitrary_memory) [L7036] ldv_urb_state = ldv_urb_state + 1 [L7037] return ((struct urb *)arbitrary_memory); VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6382] catc->irq_urb = usb_alloc_urb(0, 208U) [L6384] EXPR catc->ctrl_urb VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6384] COND FALSE !(! catc->ctrl_urb) [L6387] EXPR catc->tx_urb VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6387] COND FALSE !(! catc->tx_urb) [L6390] EXPR catc->rx_urb VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6390] COND FALSE !(! catc->rx_urb) [L6393] EXPR catc->irq_urb VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6393] COND FALSE !(! catc->irq_urb) [L6406] EXPR usbdev->descriptor.idVendor VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6406] COND FALSE !((int )usbdev->descriptor.idVendor == 1059) [L6429] pktsz = 23070 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5167] EXPR dev->devnum [L5167] return ((unsigned int )(dev->devnum << 8) | (endpoint << 15)); [L6432] tmp___10 = __create_pipe(usbdev, 0U) [L6433] catc->ctrl_urb [L5103] urb->dev = dev [L5104] urb->pipe = pipe [L5105] urb->setup_packet = setup_packet [L5106] urb->transfer_buffer = transfer_buffer [L5107] urb->transfer_buffer_length = (u32 )buffer_length [L5108] urb->complete = complete_fn [L5109] urb->context = context VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5167] EXPR dev->devnum [L5167] return ((unsigned int )(dev->devnum << 8) | (endpoint << 15)); [L6436] tmp___11 = __create_pipe(usbdev, 1U) [L6437] catc->tx_urb [L5119] urb->dev = dev [L5120] urb->pipe = pipe [L5121] urb->transfer_buffer = transfer_buffer [L5122] urb->transfer_buffer_length = (u32 )buffer_length [L5123] urb->complete = complete_fn [L5124] urb->context = context VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5167] EXPR dev->devnum [L5167] return ((unsigned int )(dev->devnum << 8) | (endpoint << 15)); [L6439] tmp___12 = __create_pipe(usbdev, 1U) [L6440] catc->rx_urb [L5119] urb->dev = dev [L5120] urb->pipe = pipe [L5121] urb->transfer_buffer = transfer_buffer [L5122] urb->transfer_buffer_length = (u32 )buffer_length [L5123] urb->complete = complete_fn [L5124] urb->context = context VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5167] EXPR dev->devnum [L5167] return ((unsigned int )(dev->devnum << 8) | (endpoint << 15)); [L6442] tmp___13 = __create_pipe(usbdev, 2U) [L6443] catc->irq_urb [L5134] urb->dev = dev [L5135] urb->pipe = pipe [L5136] urb->transfer_buffer = transfer_buffer [L5137] urb->transfer_buffer_length = (u32 )buffer_length [L5138] urb->complete = complete_fn [L5139] urb->context = context [L5140] EXPR dev->speed VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5140] COND TRUE (unsigned int )dev->speed == 3U [L5141] urb->interval = 1 << (interval - 1) VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5148] urb->start_frame = -1 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6446] EXPR catc->is_f5u011 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6446] COND FALSE !(! catc->is_f5u011) [L6599] COND TRUE 1 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5677] int retval ; [L5678] unsigned int tmp___7 ; [L5679] unsigned int tmp___8 ; [L5680] unsigned int tmp___9 ; [L5681] int tmp___10 ; [L5682] int tmp___11 ; VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5684] COND FALSE !(\read(dir)) [L5691] EXPR catc->usbdev [L5167] EXPR dev->devnum [L5167] return ((unsigned int )(dev->devnum << 8) | (endpoint << 15)); [L5691] tmp___8 = __create_pipe(catc->usbdev, 0U) [L5692] tmp___9 = (unsigned int )(2 << 30) | tmp___8 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5696] EXPR catc->usbdev [L7199] return __VERIFIER_nondet_int(); [L5696-L5697] tmp___10 = usb_control_msg(catc->usbdev, tmp___9, request, (__u8 )(64 | (int )dir), value, index, buf, (__u16 )len, 1000) [L5698] retval = tmp___10 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5700] COND TRUE retval < 0 [L5701] tmp___11 = retval VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5705] return (tmp___11); VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6608] netdev->dev_addr [L5677] int retval ; [L5678] unsigned int tmp___7 ; [L5679] unsigned int tmp___8 ; [L5680] unsigned int tmp___9 ; [L5681] int tmp___10 ; [L5682] int tmp___11 ; VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5684] COND TRUE \read(dir) [L5686] EXPR catc->usbdev [L5167] EXPR dev->devnum [L5167] return ((unsigned int )(dev->devnum << 8) | (endpoint << 15)); [L5686] tmp___7 = __create_pipe(catc->usbdev, 0U) [L5687] tmp___9 = ((unsigned int )(2 << 30) | tmp___7) | 128U VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5696] EXPR catc->usbdev [L7199] return __VERIFIER_nondet_int(); [L5696-L5697] tmp___10 = usb_control_msg(catc->usbdev, tmp___9, request, (__u8 )(64 | (int )dir), value, index, buf, (__u16 )len, 1000) [L5698] retval = tmp___10 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5700] COND TRUE retval < 0 [L5701] tmp___11 = retval VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5705] return (tmp___11); VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6612] COND TRUE 1 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6620] catc->rxmode[0] = (u8 )11 [L6621] catc->rxmode[1] = (u8 )0 [L5677] int retval ; [L5678] unsigned int tmp___7 ; [L5679] unsigned int tmp___8 ; [L5680] unsigned int tmp___9 ; [L5681] int tmp___10 ; [L5682] int tmp___11 ; VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5684] COND FALSE !(\read(dir)) [L5691] EXPR catc->usbdev [L5167] EXPR dev->devnum [L5167] return ((unsigned int )(dev->devnum << 8) | (endpoint << 15)); [L5691] tmp___8 = __create_pipe(catc->usbdev, 0U) [L5692] tmp___9 = (unsigned int )(2 << 30) | tmp___8 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5696] EXPR catc->usbdev [L7199] return __VERIFIER_nondet_int(); [L5696-L5697] tmp___10 = usb_control_msg(catc->usbdev, tmp___9, request, (__u8 )(64 | (int )dir), value, index, buf, (__u16 )len, 1000) [L5698] retval = tmp___10 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5700] COND TRUE retval < 0 [L5701] tmp___11 = retval VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5705] return (tmp___11); VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6627] COND TRUE 1 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6634] catc->is_f5u011 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6634] COND TRUE catc->is_f5u011 [L6635] tmp___14 = "Belkin F5U011" VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6640] EXPR usbdev->bus [L6640] (usbdev->bus)->bus_name [L6641] netdev->dev_addr [L7138] return __VERIFIER_nondet_int(); [L6643] netdev->dev.parent = & intf->dev [L7187] return __VERIFIER_nondet_int(); [L6644] tmp___15 = register_netdev(netdev) [L6646] COND FALSE !(tmp___15 != 0) [L6658] return (0); [L6658] return (0); [L6658] return (0); VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6897] res_catc_probe_17 = catc_probe(var_group5, var_catc_probe_17_p1) [L6900] COND FALSE !(\read(res_catc_probe_17)) [L6904] ldv_s_catc_driver_usb_driver = ldv_s_catc_driver_usb_driver + 1 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6793] COND TRUE 1 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6796] tmp___9 = __VERIFIER_nondet_int() [L6798] COND TRUE \read(tmp___9) VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6807] tmp___8 = __VERIFIER_nondet_int() [L6809] COND FALSE !(tmp___8 == 0) VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6812] COND FALSE !(tmp___8 == 1) VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6815] COND TRUE tmp___8 == 2 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6852] COND TRUE ldv_s_catc_netdev_ops_net_device_ops == 0 [L6178] struct catc *catc ; [L6179] void *tmp___7 ; [L6180] int status ; [L4928] return ((void *)((char *)dev + ((sizeof(struct net_device ) + 31UL) & 0x0fffffffffffffe0UL))); VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6183] tmp___7 = netdev_priv((struct net_device const *)netdev) [L6184] catc = (struct catc *)tmp___7 [L6185] EXPR catc->irq_urb [L6185] EXPR catc->usbdev [L6185] (catc->irq_urb)->dev = catc->usbdev [L6186] EXPR catc->irq_urb [L7217] return __VERIFIER_nondet_int(); [L6186] status = usb_submit_urb(catc->irq_urb, 208U) [L6188] COND TRUE status < 0 [L6192] return (-1); VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6854] res_catc_open_15 = catc_open(var_group1) [L6857] COND TRUE res_catc_open_15 < 0 VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=-1, res_catc_probe_17=0, res_catc_stop_16=0] [L7081] COND FALSE !(ldv_urb_state == 0) VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=-1, res_catc_probe_17=0, res_catc_stop_16=0] [L6946] reach_error() VAL [__key___10={94:0}, __key___11={102:0}, __key___9={127:0}, __this_module={18446744073709551687:18446744073709551648}, catc_driver={98:0}, catc_id_table={119:0}, catc_netdev_ops={103:0}, driver_name={113:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={57:0}, res_catc_open_15=-1, res_catc_probe_17=0, res_catc_stop_16=0] - UnprovableResult [Line: 6946]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6946]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6946]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6946]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6946]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6946]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6946]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6946]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6946]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6946]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6946]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6946]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6946]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 689 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 75.5s, OverallIterations: 23, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 59.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 26688 SDtfs, 26255 SDslu, 45548 SDs, 0 SdLazy, 5258 SolverSat, 331 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 48.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 271 GetRequests, 183 SyntacticMatches, 6 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2756occurred in iteration=8, InterpolantAutomatonStates: 113, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.6s AutomataMinimizationTime, 22 MinimizatonAttempts, 20949 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 2118 NumberOfCodeBlocks, 2118 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 1956 ConstructedInterpolants, 0 QuantifiedInterpolants, 4857 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2217 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 23 InterpolantComputations, 22 PerfectInterpolantSequences, 25/28 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-07 07:23:40,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/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_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY --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 70a2ace6fc40caa55e586c636402c0a5dfab1c8b77b7cf0fdf6a2120173a773c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:23:43,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:23:43,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:23:43,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:23:43,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:23:43,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:23:43,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:23:43,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:23:43,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:23:43,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:23:43,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:23:43,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:23:43,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:23:43,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:23:43,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:23:43,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:23:44,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:23:44,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:23:44,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:23:44,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:23:44,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:23:44,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:23:44,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:23:44,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:23:44,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:23:44,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:23:44,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:23:44,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:23:44,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:23:44,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:23:44,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:23:44,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:23:44,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:23:44,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:23:44,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:23:44,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:23:44,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:23:44,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:23:44,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:23:44,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:23:44,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:23:44,079 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-07 07:23:44,142 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:23:44,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:23:44,143 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:23:44,143 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:23:44,145 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:23:44,145 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:23:44,145 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:23:44,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:23:44,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:23:44,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:23:44,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:23:44,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:23:44,147 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 07:23:44,147 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 07:23:44,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:23:44,148 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:23:44,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:23:44,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:23:44,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:23:44,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:23:44,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:23:44,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:23:44,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:23:44,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:23:44,151 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-07 07:23:44,151 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 07:23:44,152 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:23:44,152 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:23:44,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:23:44,153 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:23:44,153 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 07:23:44,153 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_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70a2ace6fc40caa55e586c636402c0a5dfab1c8b77b7cf0fdf6a2120173a773c [2021-11-07 07:23:44,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:23:44,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:23:44,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:23:44,657 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:23:44,660 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:23:44,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i [2021-11-07 07:23:44,784 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/data/c7c0a1058/41c37335dc644fcb9b8db4886b834253/FLAGa4e7aad57 [2021-11-07 07:23:45,924 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:23:45,926 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i [2021-11-07 07:23:45,982 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/data/c7c0a1058/41c37335dc644fcb9b8db4886b834253/FLAGa4e7aad57 [2021-11-07 07:23:46,316 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/data/c7c0a1058/41c37335dc644fcb9b8db4886b834253 [2021-11-07 07:23:46,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:23:46,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:23:46,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:23:46,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:23:46,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:23:46,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:23:46" (1/1) ... [2021-11-07 07:23:46,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55c1241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:46, skipping insertion in model container [2021-11-07 07:23:46,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:23:46" (1/1) ... [2021-11-07 07:23:46,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:23:46,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:23:48,276 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_a153fdf9-74e7-4766-9f66-7581c074dcb9/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i[199632,199645] [2021-11-07 07:23:48,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:23:48,461 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:23:48,781 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_a153fdf9-74e7-4766-9f66-7581c074dcb9/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i[199632,199645] [2021-11-07 07:23:48,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:23:49,400 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:23:49,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:49 WrapperNode [2021-11-07 07:23:49,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:23:49,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:23:49,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:23:49,406 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:23:49,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:49" (1/1) ... [2021-11-07 07:23:49,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:49" (1/1) ... [2021-11-07 07:23:49,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:23:49,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:23:49,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:23:49,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:23:49,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:49" (1/1) ... [2021-11-07 07:23:49,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:49" (1/1) ... [2021-11-07 07:23:49,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:49" (1/1) ... [2021-11-07 07:23:49,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:49" (1/1) ... [2021-11-07 07:23:49,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:49" (1/1) ... [2021-11-07 07:23:49,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:49" (1/1) ... [2021-11-07 07:23:49,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:49" (1/1) ... [2021-11-07 07:23:50,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:23:50,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:23:50,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:23:50,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:23:50,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:49" (1/1) ... [2021-11-07 07:23:50,050 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:23:50,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:23:50,091 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:23:50,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:23:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 07:23:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 07:23:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 07:23:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 07:23:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 07:23:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 07:23:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 07:23:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 07:23:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 07:23:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 07:23:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 07:23:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 07:23:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:23:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 07:23:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 07:23:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 07:23:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 07:23:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 07:23:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 07:23:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 07:23:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 07:23:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 07:23:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 07:23:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 07:23:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 07:23:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 07:23:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 07:23:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 07:23:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-07 07:23:50,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:23:50,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:23:50,925 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 07:23:51,089 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 07:24:30,017 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##522: assume !false; [2021-11-07 07:24:30,018 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##521: assume false; [2021-11-07 07:24:30,018 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !false; [2021-11-07 07:24:30,018 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume false; [2021-11-07 07:24:30,039 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:24:30,039 INFO L299 CfgBuilder]: Removed 647 assume(true) statements. [2021-11-07 07:24:30,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:24:30 BoogieIcfgContainer [2021-11-07 07:24:30,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:24:30,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:24:30,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:24:30,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:24:30,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:23:46" (1/3) ... [2021-11-07 07:24:30,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff1d354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:24:30, skipping insertion in model container [2021-11-07 07:24:30,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:49" (2/3) ... [2021-11-07 07:24:30,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff1d354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:24:30, skipping insertion in model container [2021-11-07 07:24:30,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:24:30" (3/3) ... [2021-11-07 07:24:30,054 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-net-usb-catc.ko.cil.out.i [2021-11-07 07:24:30,061 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:24:30,062 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-07 07:24:30,131 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:24:30,139 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 [2021-11-07 07:24:30,140 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-07 07:24:30,178 INFO L276 IsEmpty]: Start isEmpty. Operand has 689 states, 674 states have (on average 1.4940652818991098) internal successors, (1007), 688 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:30,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 07:24:30,184 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:24:30,185 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:24:30,186 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:24:30,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:24:30,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1802578412, now seen corresponding path program 1 times [2021-11-07 07:24:30,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:24:30,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970373289] [2021-11-07 07:24:30,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:24:30,214 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:24:30,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:24:30,222 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:24:30,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 07:24:31,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:24:31,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 07:24:31,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:24:31,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:24:31,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:24:31,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:24:31,494 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:24:31,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970373289] [2021-11-07 07:24:31,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970373289] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:24:31,496 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:24:31,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 07:24:31,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128024388] [2021-11-07 07:24:31,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:24:31,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:24:31,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:24:31,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:24:31,552 INFO L87 Difference]: Start difference. First operand has 689 states, 674 states have (on average 1.4940652818991098) internal successors, (1007), 688 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:32,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:24:32,024 INFO L93 Difference]: Finished difference Result 2054 states and 3006 transitions. [2021-11-07 07:24:32,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:24:32,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-07 07:24:32,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:24:32,076 INFO L225 Difference]: With dead ends: 2054 [2021-11-07 07:24:32,077 INFO L226 Difference]: Without dead ends: 1338 [2021-11-07 07:24:32,090 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:24:32,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2021-11-07 07:24:32,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 672. [2021-11-07 07:24:32,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 658 states have (on average 1.2917933130699089) internal successors, (850), 671 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:32,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 850 transitions. [2021-11-07 07:24:32,294 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 850 transitions. Word has length 11 [2021-11-07 07:24:32,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:24:32,296 INFO L470 AbstractCegarLoop]: Abstraction has 672 states and 850 transitions. [2021-11-07 07:24:32,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:32,298 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 850 transitions. [2021-11-07 07:24:32,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 07:24:32,299 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:24:32,299 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:24:32,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 07:24:32,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:24:32,513 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:24:32,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:24:32,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1859836714, now seen corresponding path program 1 times [2021-11-07 07:24:32,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:24:32,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843543439] [2021-11-07 07:24:32,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:24:32,517 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:24:32,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:24:32,523 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:24:32,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 07:24:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:24:33,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 07:24:33,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:24:33,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:24:33,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:24:33,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:24:33,802 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:24:33,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [843543439] [2021-11-07 07:24:33,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [843543439] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:24:33,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:24:33,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 07:24:33,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744815565] [2021-11-07 07:24:33,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:24:33,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:24:33,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:24:33,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:24:33,807 INFO L87 Difference]: Start difference. First operand 672 states and 850 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:34,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:24:34,232 INFO L93 Difference]: Finished difference Result 1975 states and 2507 transitions. [2021-11-07 07:24:34,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:24:34,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-07 07:24:34,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:24:34,247 INFO L225 Difference]: With dead ends: 1975 [2021-11-07 07:24:34,247 INFO L226 Difference]: Without dead ends: 1315 [2021-11-07 07:24:34,254 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:24:34,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2021-11-07 07:24:34,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1291. [2021-11-07 07:24:34,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1291 states, 1277 states have (on average 1.2889584964761158) internal successors, (1646), 1290 states have internal predecessors, (1646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:34,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1291 states to 1291 states and 1646 transitions. [2021-11-07 07:24:34,378 INFO L78 Accepts]: Start accepts. Automaton has 1291 states and 1646 transitions. Word has length 11 [2021-11-07 07:24:34,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:24:34,379 INFO L470 AbstractCegarLoop]: Abstraction has 1291 states and 1646 transitions. [2021-11-07 07:24:34,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:34,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states and 1646 transitions. [2021-11-07 07:24:34,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 07:24:34,380 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:24:34,380 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:24:34,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 07:24:34,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:24:34,602 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:24:34,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:24:34,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1820364266, now seen corresponding path program 1 times [2021-11-07 07:24:34,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:24:34,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457645118] [2021-11-07 07:24:34,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:24:34,609 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:24:34,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:24:34,611 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:24:34,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 07:24:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:24:35,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 07:24:35,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:24:35,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:24:35,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:24:35,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:24:35,799 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:24:35,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457645118] [2021-11-07 07:24:35,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457645118] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:24:35,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:24:35,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 07:24:35,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10447879] [2021-11-07 07:24:35,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:24:35,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:24:35,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:24:35,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:24:35,804 INFO L87 Difference]: Start difference. First operand 1291 states and 1646 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:35,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:24:35,926 INFO L93 Difference]: Finished difference Result 1291 states and 1646 transitions. [2021-11-07 07:24:35,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:24:35,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-07 07:24:35,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:24:35,937 INFO L225 Difference]: With dead ends: 1291 [2021-11-07 07:24:35,938 INFO L226 Difference]: Without dead ends: 1286 [2021-11-07 07:24:35,939 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:24:35,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2021-11-07 07:24:36,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1283. [2021-11-07 07:24:36,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1270 states have (on average 1.2858267716535432) internal successors, (1633), 1282 states have internal predecessors, (1633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:36,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1633 transitions. [2021-11-07 07:24:36,065 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1633 transitions. Word has length 12 [2021-11-07 07:24:36,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:24:36,066 INFO L470 AbstractCegarLoop]: Abstraction has 1283 states and 1633 transitions. [2021-11-07 07:24:36,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:36,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1633 transitions. [2021-11-07 07:24:36,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-07 07:24:36,070 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:24:36,070 INFO L513 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] [2021-11-07 07:24:36,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 07:24:36,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:24:36,285 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:24:36,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:24:36,286 INFO L85 PathProgramCache]: Analyzing trace with hash -965110428, now seen corresponding path program 1 times [2021-11-07 07:24:36,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:24:36,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240439266] [2021-11-07 07:24:36,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:24:36,288 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:24:36,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:24:36,290 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:24:36,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 07:24:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:24:37,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 07:24:37,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:24:37,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:24:37,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:24:37,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:24:37,731 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:24:37,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1240439266] [2021-11-07 07:24:37,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1240439266] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:24:37,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:24:37,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 07:24:37,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017907223] [2021-11-07 07:24:37,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:24:37,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:24:37,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:24:37,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:24:37,734 INFO L87 Difference]: Start difference. First operand 1283 states and 1633 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:38,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:24:38,105 INFO L93 Difference]: Finished difference Result 3681 states and 4764 transitions. [2021-11-07 07:24:38,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:24:38,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-07 07:24:38,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:24:38,124 INFO L225 Difference]: With dead ends: 3681 [2021-11-07 07:24:38,125 INFO L226 Difference]: Without dead ends: 2406 [2021-11-07 07:24:38,128 INFO L786 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 [2021-11-07 07:24:38,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2021-11-07 07:24:38,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2398. [2021-11-07 07:24:38,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2398 states, 2385 states have (on average 1.310691823899371) internal successors, (3126), 2397 states have internal predecessors, (3126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:38,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2398 states to 2398 states and 3126 transitions. [2021-11-07 07:24:38,438 INFO L78 Accepts]: Start accepts. Automaton has 2398 states and 3126 transitions. Word has length 35 [2021-11-07 07:24:38,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:24:38,440 INFO L470 AbstractCegarLoop]: Abstraction has 2398 states and 3126 transitions. [2021-11-07 07:24:38,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:38,445 INFO L276 IsEmpty]: Start isEmpty. Operand 2398 states and 3126 transitions. [2021-11-07 07:24:38,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 07:24:38,458 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:24:38,459 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 07:24:38,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 07:24:38,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:24:38,673 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:24:38,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:24:38,674 INFO L85 PathProgramCache]: Analyzing trace with hash -2056089327, now seen corresponding path program 1 times [2021-11-07 07:24:38,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:24:38,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878521641] [2021-11-07 07:24:38,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:24:38,677 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:24:38,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:24:38,683 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:24:38,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 07:24:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:24:39,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 07:24:39,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:24:40,056 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:24:40,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:24:40,325 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:24:40,325 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:24:40,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878521641] [2021-11-07 07:24:40,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878521641] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:24:40,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:24:40,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 07:24:40,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138630544] [2021-11-07 07:24:40,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 07:24:40,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:24:40,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 07:24:40,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:24:40,329 INFO L87 Difference]: Start difference. First operand 2398 states and 3126 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:42,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:24:42,871 INFO L93 Difference]: Finished difference Result 4807 states and 6261 transitions. [2021-11-07 07:24:42,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:24:42,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-07 07:24:42,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:24:42,890 INFO L225 Difference]: With dead ends: 4807 [2021-11-07 07:24:42,891 INFO L226 Difference]: Without dead ends: 2410 [2021-11-07 07:24:42,896 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:24:42,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2410 states. [2021-11-07 07:24:43,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2410 to 2396. [2021-11-07 07:24:43,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2396 states, 2383 states have (on average 1.3092740243390684) internal successors, (3120), 2395 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:43,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2396 states to 2396 states and 3120 transitions. [2021-11-07 07:24:43,172 INFO L78 Accepts]: Start accepts. Automaton has 2396 states and 3120 transitions. Word has length 53 [2021-11-07 07:24:43,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:24:43,173 INFO L470 AbstractCegarLoop]: Abstraction has 2396 states and 3120 transitions. [2021-11-07 07:24:43,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:43,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2396 states and 3120 transitions. [2021-11-07 07:24:43,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 07:24:43,180 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:24:43,180 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:24:43,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 07:24:43,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:24:43,404 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:24:43,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:24:43,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1050619864, now seen corresponding path program 1 times [2021-11-07 07:24:43,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:24:43,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63703410] [2021-11-07 07:24:43,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:24:43,407 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:24:43,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:24:43,413 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:24:43,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 07:24:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:24:44,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 07:24:44,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:24:45,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:24:45,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:24:45,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:24:45,422 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:24:45,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63703410] [2021-11-07 07:24:45,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63703410] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:24:45,422 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:24:45,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 07:24:45,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552200268] [2021-11-07 07:24:45,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:24:45,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:24:45,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:24:45,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:24:45,425 INFO L87 Difference]: Start difference. First operand 2396 states and 3120 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:46,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:24:46,509 INFO L93 Difference]: Finished difference Result 7138 states and 9294 transitions. [2021-11-07 07:24:46,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:24:46,513 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-07 07:24:46,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:24:46,549 INFO L225 Difference]: With dead ends: 7138 [2021-11-07 07:24:46,549 INFO L226 Difference]: Without dead ends: 4748 [2021-11-07 07:24:46,556 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:24:46,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4748 states. [2021-11-07 07:24:46,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4748 to 2399. [2021-11-07 07:24:46,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2399 states, 2386 states have (on average 1.308466051969824) internal successors, (3122), 2398 states have internal predecessors, (3122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:46,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 3122 transitions. [2021-11-07 07:24:46,943 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 3122 transitions. Word has length 78 [2021-11-07 07:24:46,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:24:46,946 INFO L470 AbstractCegarLoop]: Abstraction has 2399 states and 3122 transitions. [2021-11-07 07:24:46,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:46,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 3122 transitions. [2021-11-07 07:24:46,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 07:24:46,950 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:24:46,951 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:24:46,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 07:24:47,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:24:47,165 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:24:47,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:24:47,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1494520538, now seen corresponding path program 1 times [2021-11-07 07:24:47,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:24:47,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111144777] [2021-11-07 07:24:47,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:24:47,168 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:24:47,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:24:47,169 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:24:47,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 07:24:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:24:48,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 07:24:48,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:24:48,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:24:48,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:24:49,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:24:49,045 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:24:49,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2111144777] [2021-11-07 07:24:49,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2111144777] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:24:49,046 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:24:49,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 07:24:49,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216903602] [2021-11-07 07:24:49,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:24:49,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:24:49,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:24:49,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:24:49,048 INFO L87 Difference]: Start difference. First operand 2399 states and 3122 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:50,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:24:50,108 INFO L93 Difference]: Finished difference Result 6982 states and 9092 transitions. [2021-11-07 07:24:50,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:24:50,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-07 07:24:50,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:24:50,144 INFO L225 Difference]: With dead ends: 6982 [2021-11-07 07:24:50,144 INFO L226 Difference]: Without dead ends: 4592 [2021-11-07 07:24:50,150 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:24:50,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4592 states. [2021-11-07 07:24:50,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4592 to 2411. [2021-11-07 07:24:50,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2411 states, 2398 states have (on average 1.3069224353628024) internal successors, (3134), 2410 states have internal predecessors, (3134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:50,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2411 states to 2411 states and 3134 transitions. [2021-11-07 07:24:50,457 INFO L78 Accepts]: Start accepts. Automaton has 2411 states and 3134 transitions. Word has length 78 [2021-11-07 07:24:50,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:24:50,457 INFO L470 AbstractCegarLoop]: Abstraction has 2411 states and 3134 transitions. [2021-11-07 07:24:50,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:24:50,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2411 states and 3134 transitions. [2021-11-07 07:24:50,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 07:24:50,460 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:24:50,460 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:24:50,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 07:24:50,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:24:50,676 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:24:50,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:24:50,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1517152792, now seen corresponding path program 1 times [2021-11-07 07:24:50,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:24:50,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483462893] [2021-11-07 07:24:50,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:24:50,679 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:24:50,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:24:50,681 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:24:50,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 07:24:51,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:24:51,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:24:51,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:24:52,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-11-07 07:24:52,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-07 07:24:52,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:24:52,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:24:52,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:24:52,971 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:24:52,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483462893] [2021-11-07 07:24:52,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483462893] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:24:52,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:24:52,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 07:24:52,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445590291] [2021-11-07 07:24:52,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 07:24:52,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:24:52,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 07:24:52,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:24:52,979 INFO L87 Difference]: Start difference. First operand 2411 states and 3134 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:57,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:57,381 INFO L93 Difference]: Finished difference Result 4732 states and 6161 transitions. [2021-11-07 07:26:57,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:26:57,384 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-07 07:26:57,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:57,425 INFO L225 Difference]: With dead ends: 4732 [2021-11-07 07:26:57,425 INFO L226 Difference]: Without dead ends: 4670 [2021-11-07 07:26:57,428 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 07:26:57,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4670 states. [2021-11-07 07:26:57,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4670 to 2411. [2021-11-07 07:26:57,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2411 states, 2398 states have (on average 1.3060884070058383) internal successors, (3132), 2410 states have internal predecessors, (3132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:57,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2411 states to 2411 states and 3132 transitions. [2021-11-07 07:26:57,842 INFO L78 Accepts]: Start accepts. Automaton has 2411 states and 3132 transitions. Word has length 78 [2021-11-07 07:26:57,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:57,842 INFO L470 AbstractCegarLoop]: Abstraction has 2411 states and 3132 transitions. [2021-11-07 07:26:57,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:57,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2411 states and 3132 transitions. [2021-11-07 07:26:57,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 07:26:57,845 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:57,846 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:57,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:58,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:26:58,072 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:26:58,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:58,073 INFO L85 PathProgramCache]: Analyzing trace with hash 948357624, now seen corresponding path program 1 times [2021-11-07 07:26:58,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:26:58,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851969793] [2021-11-07 07:26:58,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:58,080 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:26:58,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:26:58,082 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:26:58,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 07:26:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:59,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 07:26:59,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:59,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:59,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:27:00,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:27:00,387 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:27:00,387 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851969793] [2021-11-07 07:27:00,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1851969793] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:27:00,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:27:00,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-07 07:27:00,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891076296] [2021-11-07 07:27:00,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 07:27:00,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:27:00,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 07:27:00,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:27:00,389 INFO L87 Difference]: Start difference. First operand 2411 states and 3132 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:06,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:27:06,329 INFO L93 Difference]: Finished difference Result 9667 states and 12640 transitions. [2021-11-07 07:27:06,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:27:06,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 07:27:06,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:27:06,408 INFO L225 Difference]: With dead ends: 9667 [2021-11-07 07:27:06,408 INFO L226 Difference]: Without dead ends: 8419 [2021-11-07 07:27:06,415 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:27:06,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8419 states. [2021-11-07 07:27:07,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8419 to 7045. [2021-11-07 07:27:07,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7045 states, 7032 states have (on average 1.3111490329920363) internal successors, (9220), 7044 states have internal predecessors, (9220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:07,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7045 states to 7045 states and 9220 transitions. [2021-11-07 07:27:07,719 INFO L78 Accepts]: Start accepts. Automaton has 7045 states and 9220 transitions. Word has length 79 [2021-11-07 07:27:07,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:27:07,721 INFO L470 AbstractCegarLoop]: Abstraction has 7045 states and 9220 transitions. [2021-11-07 07:27:07,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:07,722 INFO L276 IsEmpty]: Start isEmpty. Operand 7045 states and 9220 transitions. [2021-11-07 07:27:07,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 07:27:07,732 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:27:07,732 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:27:07,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 07:27:07,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:27:07,960 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:27:07,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:27:07,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1167030794, now seen corresponding path program 1 times [2021-11-07 07:27:07,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:27:07,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256242717] [2021-11-07 07:27:07,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:27:07,963 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:27:07,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:27:07,965 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:27:08,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 07:27:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:27:09,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 07:27:09,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:27:09,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:27:09,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:27:10,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:27:10,113 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:27:10,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256242717] [2021-11-07 07:27:10,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256242717] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:27:10,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:27:10,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 07:27:10,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386507734] [2021-11-07 07:27:10,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:27:10,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:27:10,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:27:10,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:27:10,116 INFO L87 Difference]: Start difference. First operand 7045 states and 9220 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:12,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:27:12,403 INFO L93 Difference]: Finished difference Result 23094 states and 30270 transitions. [2021-11-07 07:27:12,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:27:12,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 07:27:12,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:27:12,461 INFO L225 Difference]: With dead ends: 23094 [2021-11-07 07:27:12,461 INFO L226 Difference]: Without dead ends: 16058 [2021-11-07 07:27:12,481 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:27:12,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16058 states. [2021-11-07 07:27:13,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16058 to 7045. [2021-11-07 07:27:13,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7045 states, 7032 states have (on average 1.30773606370876) internal successors, (9196), 7044 states have internal predecessors, (9196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:13,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7045 states to 7045 states and 9196 transitions. [2021-11-07 07:27:13,676 INFO L78 Accepts]: Start accepts. Automaton has 7045 states and 9196 transitions. Word has length 79 [2021-11-07 07:27:13,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:27:13,676 INFO L470 AbstractCegarLoop]: Abstraction has 7045 states and 9196 transitions. [2021-11-07 07:27:13,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:13,677 INFO L276 IsEmpty]: Start isEmpty. Operand 7045 states and 9196 transitions. [2021-11-07 07:27:13,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 07:27:13,679 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:27:13,680 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:27:13,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 07:27:13,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:27:13,896 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:27:13,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:27:13,897 INFO L85 PathProgramCache]: Analyzing trace with hash -648257224, now seen corresponding path program 1 times [2021-11-07 07:27:13,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:27:13,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210220680] [2021-11-07 07:27:13,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:27:13,899 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:27:13,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:27:13,901 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:27:13,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 07:27:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:27:15,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 07:27:15,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:27:15,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:27:15,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:27:16,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:27:16,643 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:27:16,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210220680] [2021-11-07 07:27:16,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210220680] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:27:16,644 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:27:16,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-07 07:27:16,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122706702] [2021-11-07 07:27:16,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 07:27:16,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:27:16,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 07:27:16,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-07 07:27:16,648 INFO L87 Difference]: Start difference. First operand 7045 states and 9196 transitions. Second operand has 12 states, 12 states have (on average 13.083333333333334) internal successors, (157), 11 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:28,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:27:28,454 INFO L93 Difference]: Finished difference Result 36777 states and 48158 transitions. [2021-11-07 07:27:28,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 07:27:28,455 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 13.083333333333334) internal successors, (157), 11 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 07:27:28,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:27:28,559 INFO L225 Difference]: With dead ends: 36777 [2021-11-07 07:27:28,559 INFO L226 Difference]: Without dead ends: 33220 [2021-11-07 07:27:28,578 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=214, Unknown=0, NotChecked=0, Total=342 [2021-11-07 07:27:28,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33220 states. [2021-11-07 07:27:30,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33220 to 17401. [2021-11-07 07:27:31,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17401 states, 17388 states have (on average 1.3103289625028756) internal successors, (22784), 17400 states have internal predecessors, (22784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:31,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17401 states to 17401 states and 22784 transitions. [2021-11-07 07:27:31,063 INFO L78 Accepts]: Start accepts. Automaton has 17401 states and 22784 transitions. Word has length 79 [2021-11-07 07:27:31,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:27:31,064 INFO L470 AbstractCegarLoop]: Abstraction has 17401 states and 22784 transitions. [2021-11-07 07:27:31,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.083333333333334) internal successors, (157), 11 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:31,064 INFO L276 IsEmpty]: Start isEmpty. Operand 17401 states and 22784 transitions. [2021-11-07 07:27:31,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 07:27:31,067 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:27:31,067 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:27:31,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 07:27:31,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:27:31,280 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:27:31,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:27:31,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1804226248, now seen corresponding path program 1 times [2021-11-07 07:27:31,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:27:31,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656823696] [2021-11-07 07:27:31,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:27:31,283 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:27:31,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:27:31,284 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:27:31,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 07:27:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:27:33,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 07:27:33,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:27:34,104 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 13 treesize of output 9 [2021-11-07 07:27:34,125 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 13 treesize of output 9 [2021-11-07 07:27:34,373 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-07 07:27:34,373 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 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-07 07:27:34,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:27:34,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-07 07:27:34,602 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-07 07:27:34,603 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 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-07 07:27:34,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:27:34,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-07 07:27:34,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 43 [2021-11-07 07:27:34,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2021-11-07 07:27:34,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 47 [2021-11-07 07:27:34,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 52 [2021-11-07 07:27:34,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:27:34,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:27:35,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:27:35,752 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:27:35,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1656823696] [2021-11-07 07:27:35,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1656823696] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:27:35,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:27:35,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 07:27:35,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682255398] [2021-11-07 07:27:35,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:27:35,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:27:35,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:27:35,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:27:35,755 INFO L87 Difference]: Start difference. First operand 17401 states and 22784 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:46,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:46,124 INFO L93 Difference]: Finished difference Result 43355 states and 56710 transitions. [2021-11-07 07:28:46,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:28:46,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 07:28:46,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:46,191 INFO L225 Difference]: With dead ends: 43355 [2021-11-07 07:28:46,192 INFO L226 Difference]: Without dead ends: 25443 [2021-11-07 07:28:46,383 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 150 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:28:46,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25443 states. [2021-11-07 07:28:48,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25443 to 11503. [2021-11-07 07:28:48,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11503 states, 11490 states have (on average 1.306875543951262) internal successors, (15016), 11502 states have internal predecessors, (15016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:48,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11503 states to 11503 states and 15016 transitions. [2021-11-07 07:28:48,231 INFO L78 Accepts]: Start accepts. Automaton has 11503 states and 15016 transitions. Word has length 79 [2021-11-07 07:28:48,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:48,231 INFO L470 AbstractCegarLoop]: Abstraction has 11503 states and 15016 transitions. [2021-11-07 07:28:48,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:48,232 INFO L276 IsEmpty]: Start isEmpty. Operand 11503 states and 15016 transitions. [2021-11-07 07:28:48,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 07:28:48,234 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:48,235 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:48,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:48,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:28:48,444 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:28:48,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:48,445 INFO L85 PathProgramCache]: Analyzing trace with hash 559162765, now seen corresponding path program 1 times [2021-11-07 07:28:48,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:28:48,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004876818] [2021-11-07 07:28:48,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:48,448 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:28:48,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:28:48,450 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:28:48,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 07:28:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:49,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:28:49,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:50,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-11-07 07:28:50,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-07 07:28:50,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:50,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:28:50,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:50,984 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:28:50,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004876818] [2021-11-07 07:28:50,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004876818] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:28:50,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:28:50,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 07:28:50,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136082611] [2021-11-07 07:28:50,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 07:28:50,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:28:50,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 07:28:50,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:28:50,987 INFO L87 Difference]: Start difference. First operand 11503 states and 15016 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:10,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:31:10,664 INFO L93 Difference]: Finished difference Result 22633 states and 29572 transitions. [2021-11-07 07:31:10,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:31:10,667 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-07 07:31:10,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:31:10,714 INFO L225 Difference]: With dead ends: 22633 [2021-11-07 07:31:10,715 INFO L226 Difference]: Without dead ends: 22486 [2021-11-07 07:31:10,722 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 07:31:10,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22486 states. [2021-11-07 07:31:12,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22486 to 11508. [2021-11-07 07:31:12,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11508 states, 11495 states have (on average 1.3059591126576773) internal successors, (15012), 11507 states have internal predecessors, (15012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:12,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11508 states to 11508 states and 15012 transitions. [2021-11-07 07:31:12,496 INFO L78 Accepts]: Start accepts. Automaton has 11508 states and 15012 transitions. Word has length 85 [2021-11-07 07:31:12,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:31:12,496 INFO L470 AbstractCegarLoop]: Abstraction has 11508 states and 15012 transitions. [2021-11-07 07:31:12,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:12,497 INFO L276 IsEmpty]: Start isEmpty. Operand 11508 states and 15012 transitions. [2021-11-07 07:31:12,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 07:31:12,500 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:31:12,500 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:31:12,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-07 07:31:12,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:31:12,716 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:31:12,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:31:12,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1810418226, now seen corresponding path program 1 times [2021-11-07 07:31:12,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:31:12,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246334084] [2021-11-07 07:31:12,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:31:12,718 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:31:12,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:31:12,719 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:31:12,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-07 07:31:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:31:15,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:31:15,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:31:15,993 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 13 treesize of output 9 [2021-11-07 07:31:16,015 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 13 treesize of output 9 [2021-11-07 07:31:16,210 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-07 07:31:16,210 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 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-07 07:31:16,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:31:16,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-07 07:31:16,381 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-07 07:31:16,381 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 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-07 07:31:16,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:31:16,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-07 07:31:16,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-11-07 07:31:16,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-07 07:31:16,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:31:16,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:31:16,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:31:16,933 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:31:16,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246334084] [2021-11-07 07:31:16,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246334084] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:31:16,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:31:16,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 07:31:16,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776813236] [2021-11-07 07:31:16,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:31:16,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:31:16,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:31:16,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:31:16,935 INFO L87 Difference]: Start difference. First operand 11508 states and 15012 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:21,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:21,114 INFO L93 Difference]: Finished difference Result 31957 states and 41687 transitions. [2021-11-07 07:32:21,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:32:21,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-07 07:32:21,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:21,158 INFO L225 Difference]: With dead ends: 31957 [2021-11-07 07:32:21,158 INFO L226 Difference]: Without dead ends: 20223 [2021-11-07 07:32:21,179 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 165 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:32:21,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20223 states. [2021-11-07 07:32:22,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20223 to 10694. [2021-11-07 07:32:22,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10694 states, 10681 states have (on average 1.3048403707518024) internal successors, (13937), 10693 states have internal predecessors, (13937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:22,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10694 states to 10694 states and 13937 transitions. [2021-11-07 07:32:22,795 INFO L78 Accepts]: Start accepts. Automaton has 10694 states and 13937 transitions. Word has length 86 [2021-11-07 07:32:22,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:22,795 INFO L470 AbstractCegarLoop]: Abstraction has 10694 states and 13937 transitions. [2021-11-07 07:32:22,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:22,796 INFO L276 IsEmpty]: Start isEmpty. Operand 10694 states and 13937 transitions. [2021-11-07 07:32:22,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-07 07:32:22,798 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:22,798 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:32:22,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-07 07:32:23,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:32:23,012 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 07:32:23,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:23,013 INFO L85 PathProgramCache]: Analyzing trace with hash -642776665, now seen corresponding path program 1 times [2021-11-07 07:32:23,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:32:23,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631636322] [2021-11-07 07:32:23,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:23,015 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:32:23,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:32:23,017 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:32:23,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a153fdf9-74e7-4766-9f66-7581c074dcb9/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-07 07:32:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:24,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:32:24,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:32:25,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-11-07 07:32:25,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-07 07:32:25,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:25,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:32:25,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:25,656 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:32:25,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [631636322] [2021-11-07 07:32:25,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [631636322] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:25,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:25,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 07:32:25,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248764596] [2021-11-07 07:32:25,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 07:32:25,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:32:25,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 07:32:25,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:32:25,659 INFO L87 Difference]: Start difference. First operand 10694 states and 13937 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)