./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d19b088c-ed8b-476b-be56-21d8bc09e61a/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d19b088c-ed8b-476b-be56-21d8bc09e61a/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d19b088c-ed8b-476b-be56-21d8bc09e61a/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d19b088c-ed8b-476b-be56-21d8bc09e61a/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d19b088c-ed8b-476b-be56-21d8bc09e61a/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d19b088c-ed8b-476b-be56-21d8bc09e61a/bin/uautomizer-w2VwFs6gM0 --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 7e3ac2fcc053a51503ae18580c98d5f9812f019f35610d9038863980fd24a66a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:14:08,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:14:08,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:14:08,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:14:08,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:14:08,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:14:08,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:14:08,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:14:08,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:14:08,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:14:08,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:14:08,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:14:08,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:14:08,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:14:08,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:14:08,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:14:08,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:14:08,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:14:08,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:14:08,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:14:08,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:14:08,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:14:08,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:14:08,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:14:09,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:14:09,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:14:09,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:14:09,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:14:09,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:14:09,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:14:09,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:14:09,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:14:09,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:14:09,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:14:09,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:14:09,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:14:09,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:14:09,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:14:09,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:14:09,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:14:09,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:14:09,032 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d19b088c-ed8b-476b-be56-21d8bc09e61a/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 15:14:09,093 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:14:09,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:14:09,095 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:14:09,095 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:14:09,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:14:09,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:14:09,107 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:14:09,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:14:09,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:14:09,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:14:09,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:14:09,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:14:09,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:14:09,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:14:09,111 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:14:09,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:14:09,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:14:09,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:14:09,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:14:09,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:14:09,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:14:09,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:14:09,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:14:09,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:14:09,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:14:09,115 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:14:09,115 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:14:09,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:14:09,116 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:14:09,118 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_d19b088c-ed8b-476b-be56-21d8bc09e61a/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d19b088c-ed8b-476b-be56-21d8bc09e61a/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e3ac2fcc053a51503ae18580c98d5f9812f019f35610d9038863980fd24a66a [2021-11-22 15:14:09,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:14:09,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:14:09,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:14:09,566 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:14:09,567 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:14:09,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d19b088c-ed8b-476b-be56-21d8bc09e61a/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i [2021-11-22 15:14:09,657 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d19b088c-ed8b-476b-be56-21d8bc09e61a/bin/uautomizer-w2VwFs6gM0/data/3965e2db2/14279fd576da443eb383f20629fd9acc/FLAGd7df8bdc1 [2021-11-22 15:14:10,879 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:14:10,880 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d19b088c-ed8b-476b-be56-21d8bc09e61a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i [2021-11-22 15:14:10,968 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d19b088c-ed8b-476b-be56-21d8bc09e61a/bin/uautomizer-w2VwFs6gM0/data/3965e2db2/14279fd576da443eb383f20629fd9acc/FLAGd7df8bdc1 [2021-11-22 15:14:11,123 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d19b088c-ed8b-476b-be56-21d8bc09e61a/bin/uautomizer-w2VwFs6gM0/data/3965e2db2/14279fd576da443eb383f20629fd9acc [2021-11-22 15:14:11,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:14:11,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:14:11,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:14:11,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:14:11,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:14:11,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:14:11" (1/1) ... [2021-11-22 15:14:11,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@728ae10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:11, skipping insertion in model container [2021-11-22 15:14:11,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:14:11" (1/1) ... [2021-11-22 15:14:11,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:14:11,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:14:16,986 WARN L230 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_d19b088c-ed8b-476b-be56-21d8bc09e61a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i[423705,423718] [2021-11-22 15:14:17,505 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:14:17,629 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:14:18,196 WARN L230 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_d19b088c-ed8b-476b-be56-21d8bc09e61a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i[423705,423718] [2021-11-22 15:14:18,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:14:18,665 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:14:18,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:18 WrapperNode [2021-11-22 15:14:18,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:14:18,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:14:18,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:14:18,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:14:18,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:18" (1/1) ... [2021-11-22 15:14:18,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:18" (1/1) ... [2021-11-22 15:14:23,228 INFO L137 Inliner]: procedures = 649, calls = 4702, calls flagged for inlining = 1512, calls inlined = 16849, statements flattened = 142315 [2021-11-22 15:14:23,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:14:23,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:14:23,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:14:23,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:14:23,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:18" (1/1) ... [2021-11-22 15:14:23,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:18" (1/1) ... [2021-11-22 15:14:24,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:18" (1/1) ... [2021-11-22 15:14:24,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:18" (1/1) ... [2021-11-22 15:14:27,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:18" (1/1) ... [2021-11-22 15:14:27,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:18" (1/1) ... [2021-11-22 15:14:28,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:18" (1/1) ... [2021-11-22 15:14:28,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:14:28,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:14:28,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:14:28,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:14:28,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:18" (1/1) ... [2021-11-22 15:14:28,930 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:14:28,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d19b088c-ed8b-476b-be56-21d8bc09e61a/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:14:28,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d19b088c-ed8b-476b-be56-21d8bc09e61a/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:14:28,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d19b088c-ed8b-476b-be56-21d8bc09e61a/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:14:29,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:14:29,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 15:14:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 15:14:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 15:14:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 15:14:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:14:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 15:14:29,020 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-22 15:14:29,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:14:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:14:29,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 15:14:29,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 15:14:29,020 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-22 15:14:29,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:14:29,021 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2021-11-22 15:14:29,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 15:14:29,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 15:14:29,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 15:14:29,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:14:30,455 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:14:30,457 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:15:50,085 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:15:50,220 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:15:50,221 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 15:15:50,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:15:50 BoogieIcfgContainer [2021-11-22 15:15:50,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:15:50,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:15:50,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:15:50,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:15:50,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:14:11" (1/3) ... [2021-11-22 15:15:50,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffd0779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:15:50, skipping insertion in model container [2021-11-22 15:15:50,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:18" (2/3) ... [2021-11-22 15:15:50,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffd0779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:15:50, skipping insertion in model container [2021-11-22 15:15:50,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:15:50" (3/3) ... [2021-11-22 15:15:50,262 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i [2021-11-22 15:15:50,269 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:15:50,269 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 85 error locations. [2021-11-22 15:15:50,515 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:15:50,530 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 [2021-11-22 15:15:50,530 INFO L340 AbstractCegarLoop]: Starting to check reachability of 85 error locations. [2021-11-22 15:15:51,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 24349 states, 24263 states have (on average 1.19185591229444) internal successors, (28918), 24348 states have internal predecessors, (28918), 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) [2021-11-22 15:15:51,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-22 15:15:51,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:15:51,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:15:51,083 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 82 more)] === [2021-11-22 15:15:51,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:15:51,089 INFO L85 PathProgramCache]: Analyzing trace with hash 342236550, now seen corresponding path program 1 times [2021-11-22 15:15:51,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:15:51,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726098040] [2021-11-22 15:15:51,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:15:51,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:15:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:15:52,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:15:52,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:15:52,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726098040] [2021-11-22 15:15:52,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726098040] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:15:52,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:15:52,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 15:15:52,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904536615] [2021-11-22 15:15:52,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:15:52,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 15:15:52,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:15:52,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 15:15:52,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:15:52,255 INFO L87 Difference]: Start difference. First operand has 24349 states, 24263 states have (on average 1.19185591229444) internal successors, (28918), 24348 states have internal predecessors, (28918), 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 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 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) [2021-11-22 15:15:53,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:15:53,676 INFO L93 Difference]: Finished difference Result 48609 states and 57746 transitions. [2021-11-22 15:15:53,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 15:15:53,678 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 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 77 [2021-11-22 15:15:53,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:15:53,888 INFO L225 Difference]: With dead ends: 48609 [2021-11-22 15:15:53,889 INFO L226 Difference]: Without dead ends: 24239 [2021-11-22 15:15:53,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:15:53,971 INFO L933 BasicCegarLoop]: 28664 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28664 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:15:53,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 28664 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:15:54,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24239 states. [2021-11-22 15:15:55,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24239 to 24239. [2021-11-22 15:15:55,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24239 states, 24154 states have (on average 1.184814109464271) internal successors, (28618), 24238 states have internal predecessors, (28618), 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) [2021-11-22 15:15:55,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24239 states to 24239 states and 28618 transitions. [2021-11-22 15:15:55,435 INFO L78 Accepts]: Start accepts. Automaton has 24239 states and 28618 transitions. Word has length 77 [2021-11-22 15:15:55,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:15:55,436 INFO L470 AbstractCegarLoop]: Abstraction has 24239 states and 28618 transitions. [2021-11-22 15:15:55,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 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) [2021-11-22 15:15:55,438 INFO L276 IsEmpty]: Start isEmpty. Operand 24239 states and 28618 transitions. [2021-11-22 15:15:55,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-22 15:15:55,443 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:15:55,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:15:55,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:15:55,444 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 82 more)] === [2021-11-22 15:15:55,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:15:55,445 INFO L85 PathProgramCache]: Analyzing trace with hash 671176248, now seen corresponding path program 1 times [2021-11-22 15:15:55,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:15:55,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999309418] [2021-11-22 15:15:55,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:15:55,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:15:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:15:55,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:15:55,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:15:55,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999309418] [2021-11-22 15:15:55,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999309418] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:15:55,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:15:55,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:15:55,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610562575] [2021-11-22 15:15:55,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:15:55,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:15:55,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:15:55,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:15:55,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:15:55,983 INFO L87 Difference]: Start difference. First operand 24239 states and 28618 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2021-11-22 15:15:58,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:15:58,100 INFO L93 Difference]: Finished difference Result 72465 states and 85584 transitions. [2021-11-22 15:15:58,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:15:58,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2021-11-22 15:15:58,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:15:58,528 INFO L225 Difference]: With dead ends: 72465 [2021-11-22 15:15:58,528 INFO L226 Difference]: Without dead ends: 48289 [2021-11-22 15:15:58,605 INFO L932 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 [2021-11-22 15:15:58,611 INFO L933 BasicCegarLoop]: 28615 mSDtfsCounter, 28415 mSDsluCounter, 28599 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28415 SdHoareTripleChecker+Valid, 57214 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:15:58,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28415 Valid, 57214 Invalid, 15 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 15:15:58,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48289 states. [2021-11-22 15:16:00,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48289 to 48133. [2021-11-22 15:16:00,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48133 states, 48048 states have (on average 1.1853979353979354) internal successors, (56956), 48132 states have internal predecessors, (56956), 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) [2021-11-22 15:16:00,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48133 states to 48133 states and 56956 transitions. [2021-11-22 15:16:00,462 INFO L78 Accepts]: Start accepts. Automaton has 48133 states and 56956 transitions. Word has length 77 [2021-11-22 15:16:00,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:16:00,465 INFO L470 AbstractCegarLoop]: Abstraction has 48133 states and 56956 transitions. [2021-11-22 15:16:00,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2021-11-22 15:16:00,466 INFO L276 IsEmpty]: Start isEmpty. Operand 48133 states and 56956 transitions. [2021-11-22 15:16:00,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-22 15:16:00,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:16:00,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:16:00,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 15:16:00,483 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 82 more)] === [2021-11-22 15:16:00,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:16:00,484 INFO L85 PathProgramCache]: Analyzing trace with hash -653819496, now seen corresponding path program 1 times [2021-11-22 15:16:00,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:16:00,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673563128] [2021-11-22 15:16:00,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:16:00,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:16:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:16:01,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:16:01,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:16:01,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673563128] [2021-11-22 15:16:01,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673563128] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:16:01,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:16:01,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:16:01,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973373452] [2021-11-22 15:16:01,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:16:01,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:16:01,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:16:01,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:16:01,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:16:01,142 INFO L87 Difference]: Start difference. First operand 48133 states and 56956 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) 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) [2021-11-22 15:16:04,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:16:04,528 INFO L93 Difference]: Finished difference Result 134136 states and 158765 transitions. [2021-11-22 15:16:04,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:16:04,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) 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 [2021-11-22 15:16:04,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:16:04,881 INFO L225 Difference]: With dead ends: 134136 [2021-11-22 15:16:04,882 INFO L226 Difference]: Without dead ends: 86066 [2021-11-22 15:16:05,056 INFO L932 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 [2021-11-22 15:16:05,058 INFO L933 BasicCegarLoop]: 28622 mSDtfsCounter, 22600 mSDsluCounter, 28523 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22600 SdHoareTripleChecker+Valid, 57145 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:16:05,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22600 Valid, 57145 Invalid, 26 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 15:16:05,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86066 states. [2021-11-22 15:16:08,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86066 to 85856. [2021-11-22 15:16:08,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85856 states, 85771 states have (on average 1.1861118559886208) internal successors, (101734), 85855 states have internal predecessors, (101734), 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) [2021-11-22 15:16:09,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85856 states to 85856 states and 101734 transitions. [2021-11-22 15:16:09,190 INFO L78 Accepts]: Start accepts. Automaton has 85856 states and 101734 transitions. Word has length 79 [2021-11-22 15:16:09,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:16:09,192 INFO L470 AbstractCegarLoop]: Abstraction has 85856 states and 101734 transitions. [2021-11-22 15:16:09,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) 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) [2021-11-22 15:16:09,192 INFO L276 IsEmpty]: Start isEmpty. Operand 85856 states and 101734 transitions. [2021-11-22 15:16:09,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-22 15:16:09,196 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:16:09,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:16:09,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 15:16:09,198 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 82 more)] === [2021-11-22 15:16:09,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:16:09,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1758267383, now seen corresponding path program 1 times [2021-11-22 15:16:09,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:16:09,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767428669] [2021-11-22 15:16:09,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:16:09,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:16:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:16:09,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:16:09,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:16:09,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767428669] [2021-11-22 15:16:09,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767428669] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:16:09,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:16:09,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 15:16:09,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616011149] [2021-11-22 15:16:09,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:16:09,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:16:09,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:16:09,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:16:09,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:16:09,974 INFO L87 Difference]: Start difference. First operand 85856 states and 101734 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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) [2021-11-22 15:16:14,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:16:14,962 INFO L93 Difference]: Finished difference Result 170931 states and 202540 transitions. [2021-11-22 15:16:14,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:16:14,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 81 [2021-11-22 15:16:14,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:16:15,563 INFO L225 Difference]: With dead ends: 170931 [2021-11-22 15:16:15,563 INFO L226 Difference]: Without dead ends: 170821 [2021-11-22 15:16:15,886 INFO L932 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 [2021-11-22 15:16:15,895 INFO L933 BasicCegarLoop]: 28609 mSDtfsCounter, 28321 mSDsluCounter, 28258 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28321 SdHoareTripleChecker+Valid, 56867 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 15:16:15,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28321 Valid, 56867 Invalid, 273 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [109 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 15:16:16,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170821 states. [2021-11-22 15:16:20,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170821 to 170773. [2021-11-22 15:16:21,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170773 states, 170688 states have (on average 1.1849104799400074) internal successors, (202250), 170772 states have internal predecessors, (202250), 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) [2021-11-22 15:16:21,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170773 states to 170773 states and 202250 transitions. [2021-11-22 15:16:21,817 INFO L78 Accepts]: Start accepts. Automaton has 170773 states and 202250 transitions. Word has length 81 [2021-11-22 15:16:21,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:16:21,818 INFO L470 AbstractCegarLoop]: Abstraction has 170773 states and 202250 transitions. [2021-11-22 15:16:21,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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) [2021-11-22 15:16:21,818 INFO L276 IsEmpty]: Start isEmpty. Operand 170773 states and 202250 transitions. [2021-11-22 15:16:21,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-22 15:16:21,820 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:16:21,820 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:16:21,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 15:16:21,821 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr79ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 82 more)] === [2021-11-22 15:16:21,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:16:21,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1328356209, now seen corresponding path program 1 times [2021-11-22 15:16:21,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:16:21,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685239608] [2021-11-22 15:16:21,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:16:21,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:16:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:16:22,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:16:22,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:16:22,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685239608] [2021-11-22 15:16:22,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685239608] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:16:22,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:16:22,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 15:16:22,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626276704] [2021-11-22 15:16:22,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:16:22,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:16:22,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:16:22,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:16:22,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:16:22,408 INFO L87 Difference]: Start difference. First operand 170773 states and 202250 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 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) [2021-11-22 15:16:27,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:16:27,652 INFO L93 Difference]: Finished difference Result 170773 states and 202250 transitions. [2021-11-22 15:16:27,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:16:27,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 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 82 [2021-11-22 15:16:27,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:16:28,093 INFO L225 Difference]: With dead ends: 170773 [2021-11-22 15:16:28,095 INFO L226 Difference]: Without dead ends: 170771 [2021-11-22 15:16:28,199 INFO L932 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 [2021-11-22 15:16:28,202 INFO L933 BasicCegarLoop]: 28615 mSDtfsCounter, 28536 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28536 SdHoareTripleChecker+Valid, 28615 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:16:28,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28536 Valid, 28615 Invalid, 1 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:16:28,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170771 states. [2021-11-22 15:16:34,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170771 to 170771. [2021-11-22 15:16:34,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170771 states, 170687 states have (on average 1.1849057045937885) internal successors, (202248), 170770 states have internal predecessors, (202248), 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) [2021-11-22 15:16:34,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170771 states to 170771 states and 202248 transitions. [2021-11-22 15:16:34,890 INFO L78 Accepts]: Start accepts. Automaton has 170771 states and 202248 transitions. Word has length 82 [2021-11-22 15:16:34,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:16:34,891 INFO L470 AbstractCegarLoop]: Abstraction has 170771 states and 202248 transitions. [2021-11-22 15:16:34,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 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) [2021-11-22 15:16:34,892 INFO L276 IsEmpty]: Start isEmpty. Operand 170771 states and 202248 transitions. [2021-11-22 15:16:34,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-22 15:16:34,894 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:16:34,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:16:34,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 15:16:34,895 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 82 more)] === [2021-11-22 15:16:34,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:16:34,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1770560236, now seen corresponding path program 1 times [2021-11-22 15:16:34,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:16:34,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565732997] [2021-11-22 15:16:34,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:16:34,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:16:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:16:36,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:16:36,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:16:36,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565732997] [2021-11-22 15:16:36,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565732997] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:16:36,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:16:36,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 15:16:36,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864924368] [2021-11-22 15:16:36,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:16:36,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:16:36,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:16:36,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:16:36,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:16:36,034 INFO L87 Difference]: Start difference. First operand 170771 states and 202248 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 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)