./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.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_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 73b3ed2538f968a3e44c5d7fd04ec7d3b91dc8bba4b6c9eed0228eaab08d1208 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:33:45,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:33:45,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:33:45,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:33:45,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:33:45,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:33:45,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:33:45,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:33:45,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:33:45,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:33:45,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:33:45,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:33:45,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:33:45,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:33:45,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:33:45,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:33:45,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:33:45,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:33:45,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:33:45,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:33:45,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:33:45,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:33:45,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:33:45,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:33:45,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:33:45,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:33:45,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:33:45,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:33:45,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:33:45,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:33:45,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:33:45,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:33:45,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:33:45,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:33:45,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:33:45,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:33:45,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:33:45,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:33:45,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:33:45,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:33:45,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:33:45,733 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:33:45,787 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:33:45,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:33:45,788 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:33:45,788 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:33:45,795 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:33:45,796 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:33:45,796 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:33:45,796 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:33:45,796 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:33:45,797 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:33:45,798 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:33:45,798 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:33:45,798 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:33:45,799 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:33:45,799 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:33:45,799 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:33:45,800 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:33:45,800 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:33:45,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:33:45,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:33:45,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:33:45,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:33:45,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:33:45,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:33:45,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:33:45,803 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:33:45,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:33:45,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:33:45,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:33:45,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:33:45,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:33:45,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:33:45,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:33:45,807 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:33:45,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:33:45,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:33:45,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:33:45,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:33:45,808 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73b3ed2538f968a3e44c5d7fd04ec7d3b91dc8bba4b6c9eed0228eaab08d1208 [2021-11-23 02:33:46,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:33:46,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:33:46,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:33:46,152 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:33:46,154 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:33:46,155 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2021-11-23 02:33:46,243 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/data/2dce9e989/d490d7d9273b474ea022c2d78370e6b1/FLAGf6c3df144 [2021-11-23 02:33:47,075 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:33:47,076 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2021-11-23 02:33:47,120 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/data/2dce9e989/d490d7d9273b474ea022c2d78370e6b1/FLAGf6c3df144 [2021-11-23 02:33:47,603 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/data/2dce9e989/d490d7d9273b474ea022c2d78370e6b1 [2021-11-23 02:33:47,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:33:47,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:33:47,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:33:47,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:33:47,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:33:47,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:33:47" (1/1) ... [2021-11-23 02:33:47,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3618da53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:47, skipping insertion in model container [2021-11-23 02:33:47,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:33:47" (1/1) ... [2021-11-23 02:33:47,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:33:47,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:33:48,429 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_5c718366-655f-4f11-80c4-0e0e136adde3/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i[153414,153427] [2021-11-23 02:33:48,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:33:48,692 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:33:48,940 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_5c718366-655f-4f11-80c4-0e0e136adde3/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i[153414,153427] [2021-11-23 02:33:49,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:33:49,061 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:33:49,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:49 WrapperNode [2021-11-23 02:33:49,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:33:49,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:33:49,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:33:49,065 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:33:49,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:49" (1/1) ... [2021-11-23 02:33:49,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:49" (1/1) ... [2021-11-23 02:33:49,196 INFO L137 Inliner]: procedures = 84, calls = 171, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 522 [2021-11-23 02:33:49,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:33:49,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:33:49,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:33:49,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:33:49,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:49" (1/1) ... [2021-11-23 02:33:49,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:49" (1/1) ... [2021-11-23 02:33:49,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:49" (1/1) ... [2021-11-23 02:33:49,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:49" (1/1) ... [2021-11-23 02:33:49,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:49" (1/1) ... [2021-11-23 02:33:49,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:49" (1/1) ... [2021-11-23 02:33:49,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:49" (1/1) ... [2021-11-23 02:33:49,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:33:49,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:33:49,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:33:49,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:33:49,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:49" (1/1) ... [2021-11-23 02:33:49,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:33:49,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:33:49,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:33:49,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:33:49,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:33:49,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:33:49,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:33:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:33:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:33:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:33:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:33:49,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:33:49,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:33:49,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 02:33:49,459 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 02:33:49,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:33:49,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-11-23 02:33:49,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-11-23 02:33:49,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:33:49,460 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:33:49,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:33:49,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:33:49,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:33:49,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:33:49,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-11-23 02:33:49,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-11-23 02:33:49,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2021-11-23 02:33:49,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2021-11-23 02:33:49,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:33:49,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 02:33:49,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 02:33:49,462 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 02:33:49,462 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 02:33:49,463 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 02:33:49,463 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 02:33:49,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:33:49,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:33:49,463 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2021-11-23 02:33:49,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2021-11-23 02:33:49,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:33:49,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:33:49,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:33:49,800 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:33:49,802 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:33:49,921 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:33:50,403 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:33:50,716 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:33:50,716 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 02:33:50,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:33:50 BoogieIcfgContainer [2021-11-23 02:33:50,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:33:50,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:33:50,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:33:50,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:33:50,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:33:47" (1/3) ... [2021-11-23 02:33:50,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ecd061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:33:50, skipping insertion in model container [2021-11-23 02:33:50,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:49" (2/3) ... [2021-11-23 02:33:50,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ecd061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:33:50, skipping insertion in model container [2021-11-23 02:33:50,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:33:50" (3/3) ... [2021-11-23 02:33:50,732 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2021-11-23 02:33:50,744 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:33:50,744 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:33:50,801 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:33:50,809 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=FINITE_AUTOMATA, 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 [2021-11-23 02:33:50,809 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:33:50,832 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 91 states have (on average 1.4615384615384615) internal successors, (133), 96 states have internal predecessors, (133), 25 states have call successors, (25), 11 states have call predecessors, (25), 10 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-23 02:33:50,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 02:33:50,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:33:50,840 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] [2021-11-23 02:33:50,841 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:33:50,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:33:50,848 INFO L85 PathProgramCache]: Analyzing trace with hash 851092055, now seen corresponding path program 1 times [2021-11-23 02:33:50,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:33:50,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83385996] [2021-11-23 02:33:50,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:33:50,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:33:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:33:51,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:33:51,263 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:33:51,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83385996] [2021-11-23 02:33:51,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83385996] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:33:51,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:33:51,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:33:51,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218900334] [2021-11-23 02:33:51,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:33:51,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:33:51,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:33:51,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:33:51,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:33:51,311 INFO L87 Difference]: Start difference. First operand has 128 states, 91 states have (on average 1.4615384615384615) internal successors, (133), 96 states have internal predecessors, (133), 25 states have call successors, (25), 11 states have call predecessors, (25), 10 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 02:33:51,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:33:51,762 INFO L93 Difference]: Finished difference Result 362 states and 516 transitions. [2021-11-23 02:33:51,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:33:51,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2021-11-23 02:33:51,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:33:51,778 INFO L225 Difference]: With dead ends: 362 [2021-11-23 02:33:51,778 INFO L226 Difference]: Without dead ends: 228 [2021-11-23 02:33:51,782 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 [2021-11-23 02:33:51,786 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 147 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:33:51,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 301 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:33:51,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-11-23 02:33:51,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2021-11-23 02:33:51,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 169 states have (on average 1.3727810650887573) internal successors, (232), 169 states have internal predecessors, (232), 40 states have call successors, (40), 19 states have call predecessors, (40), 18 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-11-23 02:33:51,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 311 transitions. [2021-11-23 02:33:51,864 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 311 transitions. Word has length 24 [2021-11-23 02:33:51,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:33:51,865 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 311 transitions. [2021-11-23 02:33:51,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 02:33:51,866 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 311 transitions. [2021-11-23 02:33:51,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 02:33:51,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:33:51,868 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] [2021-11-23 02:33:51,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:33:51,869 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:33:51,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:33:51,870 INFO L85 PathProgramCache]: Analyzing trace with hash -969970112, now seen corresponding path program 1 times [2021-11-23 02:33:51,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:33:51,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23332916] [2021-11-23 02:33:51,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:33:51,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:33:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:33:52,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:33:52,008 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:33:52,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23332916] [2021-11-23 02:33:52,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23332916] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:33:52,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:33:52,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:33:52,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474460412] [2021-11-23 02:33:52,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:33:52,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:33:52,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:33:52,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:33:52,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:33:52,013 INFO L87 Difference]: Start difference. First operand 228 states and 311 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 02:33:52,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:33:52,420 INFO L93 Difference]: Finished difference Result 452 states and 620 transitions. [2021-11-23 02:33:52,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:33:52,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2021-11-23 02:33:52,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:33:52,430 INFO L225 Difference]: With dead ends: 452 [2021-11-23 02:33:52,430 INFO L226 Difference]: Without dead ends: 447 [2021-11-23 02:33:52,432 INFO L932 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 [2021-11-23 02:33:52,433 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 149 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:33:52,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 448 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 02:33:52,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-11-23 02:33:52,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 439. [2021-11-23 02:33:52,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 324 states have (on average 1.3703703703703705) internal successors, (444), 324 states have internal predecessors, (444), 78 states have call successors, (78), 37 states have call predecessors, (78), 36 states have return successors, (81), 77 states have call predecessors, (81), 77 states have call successors, (81) [2021-11-23 02:33:52,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 603 transitions. [2021-11-23 02:33:52,539 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 603 transitions. Word has length 27 [2021-11-23 02:33:52,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:33:52,540 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 603 transitions. [2021-11-23 02:33:52,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 02:33:52,541 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 603 transitions. [2021-11-23 02:33:52,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 02:33:52,546 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:33:52,547 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:33:52,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:33:52,547 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:33:52,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:33:52,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1418459575, now seen corresponding path program 1 times [2021-11-23 02:33:52,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:33:52,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993092880] [2021-11-23 02:33:52,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:33:52,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:33:52,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:33:52,686 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 02:33:52,687 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:33:52,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993092880] [2021-11-23 02:33:52,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993092880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:33:52,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:33:52,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:33:52,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406854702] [2021-11-23 02:33:52,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:33:52,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:33:52,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:33:52,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:33:52,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:33:52,690 INFO L87 Difference]: Start difference. First operand 439 states and 603 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-23 02:33:52,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:33:52,946 INFO L93 Difference]: Finished difference Result 945 states and 1297 transitions. [2021-11-23 02:33:52,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:33:52,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2021-11-23 02:33:52,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:33:52,954 INFO L225 Difference]: With dead ends: 945 [2021-11-23 02:33:52,954 INFO L226 Difference]: Without dead ends: 510 [2021-11-23 02:33:52,958 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 [2021-11-23 02:33:52,960 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 38 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:33:52,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 265 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:33:52,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2021-11-23 02:33:53,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 505. [2021-11-23 02:33:53,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 385 states have (on average 1.374025974025974) internal successors, (529), 385 states have internal predecessors, (529), 80 states have call successors, (80), 40 states have call predecessors, (80), 39 states have return successors, (83), 79 states have call predecessors, (83), 79 states have call successors, (83) [2021-11-23 02:33:53,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 692 transitions. [2021-11-23 02:33:53,084 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 692 transitions. Word has length 64 [2021-11-23 02:33:53,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:33:53,084 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 692 transitions. [2021-11-23 02:33:53,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-23 02:33:53,085 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 692 transitions. [2021-11-23 02:33:53,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-23 02:33:53,092 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:33:53,092 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:33:53,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:33:53,093 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:33:53,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:33:53,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1157109761, now seen corresponding path program 1 times [2021-11-23 02:33:53,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:33:53,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517543652] [2021-11-23 02:33:53,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:33:53,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:33:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:33:53,361 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-23 02:33:53,361 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:33:53,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517543652] [2021-11-23 02:33:53,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517543652] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:33:53,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:33:53,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-23 02:33:53,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436176240] [2021-11-23 02:33:53,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:33:53,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 02:33:53,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:33:53,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 02:33:53,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-23 02:33:53,364 INFO L87 Difference]: Start difference. First operand 505 states and 692 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-23 02:33:54,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:33:54,130 INFO L93 Difference]: Finished difference Result 1111 states and 1546 transitions. [2021-11-23 02:33:54,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 02:33:54,131 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2021-11-23 02:33:54,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:33:54,137 INFO L225 Difference]: With dead ends: 1111 [2021-11-23 02:33:54,137 INFO L226 Difference]: Without dead ends: 620 [2021-11-23 02:33:54,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-23 02:33:54,141 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 81 mSDsluCounter, 1712 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:33:54,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 1627 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 02:33:54,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2021-11-23 02:33:54,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 505. [2021-11-23 02:33:54,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 385 states have (on average 1.3532467532467531) internal successors, (521), 385 states have internal predecessors, (521), 80 states have call successors, (80), 40 states have call predecessors, (80), 39 states have return successors, (83), 79 states have call predecessors, (83), 79 states have call successors, (83) [2021-11-23 02:33:54,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 684 transitions. [2021-11-23 02:33:54,188 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 684 transitions. Word has length 94 [2021-11-23 02:33:54,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:33:54,189 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 684 transitions. [2021-11-23 02:33:54,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-23 02:33:54,190 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 684 transitions. [2021-11-23 02:33:54,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-23 02:33:54,194 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:33:54,195 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:33:54,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:33:54,196 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:33:54,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:33:54,196 INFO L85 PathProgramCache]: Analyzing trace with hash 408442954, now seen corresponding path program 1 times [2021-11-23 02:33:54,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:33:54,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826888364] [2021-11-23 02:33:54,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:33:54,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:33:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:33:54,368 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-23 02:33:54,368 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:33:54,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826888364] [2021-11-23 02:33:54,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826888364] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:33:54,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:33:54,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:33:54,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97939918] [2021-11-23 02:33:54,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:33:54,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:33:54,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:33:54,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:33:54,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:33:54,371 INFO L87 Difference]: Start difference. First operand 505 states and 684 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-23 02:33:54,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:33:54,640 INFO L93 Difference]: Finished difference Result 997 states and 1355 transitions. [2021-11-23 02:33:54,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:33:54,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 100 [2021-11-23 02:33:54,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:33:54,647 INFO L225 Difference]: With dead ends: 997 [2021-11-23 02:33:54,647 INFO L226 Difference]: Without dead ends: 506 [2021-11-23 02:33:54,649 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 [2021-11-23 02:33:54,654 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:33:54,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 266 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:33:54,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2021-11-23 02:33:54,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2021-11-23 02:33:54,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 386 states have (on average 1.3523316062176165) internal successors, (522), 386 states have internal predecessors, (522), 80 states have call successors, (80), 40 states have call predecessors, (80), 39 states have return successors, (83), 79 states have call predecessors, (83), 79 states have call successors, (83) [2021-11-23 02:33:54,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 685 transitions. [2021-11-23 02:33:54,710 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 685 transitions. Word has length 100 [2021-11-23 02:33:54,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:33:54,711 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 685 transitions. [2021-11-23 02:33:54,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-23 02:33:54,712 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 685 transitions. [2021-11-23 02:33:54,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-23 02:33:54,715 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:33:54,716 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:33:54,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:33:54,716 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:33:54,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:33:54,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1698186184, now seen corresponding path program 1 times [2021-11-23 02:33:54,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:33:54,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269929152] [2021-11-23 02:33:54,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:33:54,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:33:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 02:33:54,920 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 02:33:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 02:33:55,123 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 02:33:55,123 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 02:33:55,124 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:33:55,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:33:55,130 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-23 02:33:55,134 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:33:55,155 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,156 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,157 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,157 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,158 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,158 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,159 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,159 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,160 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,160 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,160 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,161 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,161 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,161 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,161 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,162 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,162 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,162 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,163 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,163 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,163 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,164 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,164 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,164 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,165 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,165 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,165 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,166 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,166 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,166 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,167 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,167 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,167 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,168 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,168 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,168 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,168 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,169 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,169 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,169 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,172 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,172 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,173 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,173 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,173 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,174 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,174 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,174 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,176 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,176 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,177 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,177 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,177 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,177 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,178 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,178 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,178 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,179 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,179 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,179 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,179 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,180 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,180 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,180 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,180 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,181 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,181 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,181 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,181 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,182 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,182 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,182 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,183 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,183 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,183 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,183 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,184 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,184 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,184 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,184 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,185 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,185 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,185 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,185 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,186 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,186 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,186 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,187 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,187 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,187 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,188 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,188 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,188 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,188 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,189 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,189 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,191 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,197 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,197 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,198 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,198 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,198 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,199 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,199 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,199 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,199 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,200 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,200 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,200 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,201 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,201 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,201 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,202 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,202 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,202 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,202 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,203 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,203 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,203 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,204 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,204 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,204 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,204 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,205 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,205 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,205 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,205 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,206 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,206 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,207 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,207 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,207 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,207 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,208 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,208 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,208 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,209 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,209 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,210 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,210 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,210 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,210 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,211 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,211 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,211 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,212 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,212 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,212 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,212 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,213 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,213 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,213 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,214 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,214 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,214 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,214 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,215 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,215 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-23 02:33:55,215 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,216 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-23 02:33:55,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:33:55 BoogieIcfgContainer [2021-11-23 02:33:55,335 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:33:55,336 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:33:55,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:33:55,336 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:33:55,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:33:50" (3/4) ... [2021-11-23 02:33:55,340 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 02:33:55,340 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:33:55,341 INFO L158 Benchmark]: Toolchain (without parser) took 7734.11ms. Allocated memory was 90.2MB in the beginning and 201.3MB in the end (delta: 111.1MB). Free memory was 66.3MB in the beginning and 60.5MB in the end (delta: 5.8MB). Peak memory consumption was 116.8MB. Max. memory is 16.1GB. [2021-11-23 02:33:55,341 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 90.2MB. Free memory was 59.7MB in the beginning and 59.7MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:33:55,342 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1454.06ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 66.0MB in the beginning and 49.2MB in the end (delta: 16.8MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. [2021-11-23 02:33:55,342 INFO L158 Benchmark]: Boogie Procedure Inliner took 134.05ms. Allocated memory is still 109.1MB. Free memory was 49.2MB in the beginning and 45.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 02:33:55,342 INFO L158 Benchmark]: Boogie Preprocessor took 170.19ms. Allocated memory is still 109.1MB. Free memory was 45.1MB in the beginning and 62.9MB in the end (delta: -17.8MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2021-11-23 02:33:55,343 INFO L158 Benchmark]: RCFGBuilder took 1351.16ms. Allocated memory was 109.1MB in the beginning and 159.4MB in the end (delta: 50.3MB). Free memory was 62.9MB in the beginning and 99.7MB in the end (delta: -36.9MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2021-11-23 02:33:55,343 INFO L158 Benchmark]: TraceAbstraction took 4612.98ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 99.0MB in the beginning and 61.6MB in the end (delta: 37.4MB). Peak memory consumption was 78.0MB. Max. memory is 16.1GB. [2021-11-23 02:33:55,344 INFO L158 Benchmark]: Witness Printer took 4.58ms. Allocated memory is still 201.3MB. Free memory was 61.6MB in the beginning and 60.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:33:55,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 90.2MB. Free memory was 59.7MB in the beginning and 59.7MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1454.06ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 66.0MB in the beginning and 49.2MB in the end (delta: 16.8MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 134.05ms. Allocated memory is still 109.1MB. Free memory was 49.2MB in the beginning and 45.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 170.19ms. Allocated memory is still 109.1MB. Free memory was 45.1MB in the beginning and 62.9MB in the end (delta: -17.8MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1351.16ms. Allocated memory was 109.1MB in the beginning and 159.4MB in the end (delta: 50.3MB). Free memory was 62.9MB in the beginning and 99.7MB in the end (delta: -36.9MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4612.98ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 99.0MB in the beginning and 61.6MB in the end (delta: 37.4MB). Peak memory consumption was 78.0MB. Max. memory is 16.1GB. * Witness Printer took 4.58ms. Allocated memory is still 201.3MB. Free memory was 61.6MB in the beginning and 60.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 5332]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 5457. Possible FailurePath: [L5355] int ldv_state_variable_1 ; [L5356] int LDV_IN_INTERRUPT = 1; [L5357] struct archdr *rfc1051_proto_group0 ; [L5358] int ref_cnt ; [L5359] int ldv_state_variable_0 ; [L5360] struct net_device *rfc1051_proto_group1 ; [L5379-L5382] static struct ArcProto rfc1051_proto = {115, 507, 1, & rx, & build_header, & prepare_tx, (int (*)(struct net_device * , int ))0, (int (*)(struct net_device * , int ))0}; [L5565] int ldv_retval_0 ; [L5761] Element set_impl[15] ; [L5762] int last_index = 0; [L5896] Set LDV_SKBS ; [L5582] int ldvarg1 ; [L5583] int tmp ; [L5584] unsigned short ldvarg4 ; [L5585] unsigned short tmp___0 ; [L5586] struct sk_buff *ldvarg3 ; [L5587] void *tmp___1 ; [L5588] int ldvarg0 ; [L5589] int tmp___2 ; [L5590] int ldvarg5 ; [L5591] int tmp___3 ; [L5592] uint8_t ldvarg2 ; [L5593] int ldvarg6 ; [L5594] int tmp___4 ; [L5595] int tmp___5 ; [L5596] int tmp___6 ; [L5597] int tmp___7 ; [L5599] tmp = __VERIFIER_nondet_int() [L5600] ldvarg1 = tmp [L5601] tmp___0 = __VERIFIER_nondet_ushort() [L5602] ldvarg4 = tmp___0 VAL [last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg4=9, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}, tmp=0, tmp___0=9] [L5603] CALL, EXPR ldv_successful_zalloc(232UL) VAL [\old(__size)=232, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5274] EXPR, FCALL calloc(1UL, __size) VAL [\old(__size)=232, __size=232, calloc(1UL, __size)={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5274] void *p = calloc(1UL, __size); VAL [\old(__size)=232, __size=232, calloc(1UL, __size)={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, p={13:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5275] CALL assume_abort_if_not(p != (void *)0) VAL [\old(cond)=1, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5271] COND FALSE !(!cond) [L5275] RET assume_abort_if_not(p != (void *)0) VAL [\old(__size)=232, __size=232, calloc(1UL, __size)={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, p={13:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5276] return p; [L5603] RET, EXPR ldv_successful_zalloc(232UL) VAL [last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_successful_zalloc(232UL)={13:0}, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg4=9, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}, tmp=0, tmp___0=9] [L5603] tmp___1 = ldv_successful_zalloc(232UL) [L5604] ldvarg3 = (struct sk_buff *)tmp___1 [L5605] tmp___2 = __VERIFIER_nondet_int() [L5606] ldvarg0 = tmp___2 [L5607] tmp___3 = __VERIFIER_nondet_int() [L5608] ldvarg5 = tmp___3 [L5609] tmp___4 = __VERIFIER_nondet_int() [L5610] ldvarg6 = tmp___4 [L5611] CALL ldv_initialize() [L5915] CALL ldv_set_init(LDV_SKBS) [L5767] set = set_impl [L5768] last_index = 0 [L5915] RET ldv_set_init(LDV_SKBS) [L5611] RET ldv_initialize() [L5612] FCALL memset((void *)(& ldvarg2), 0, 1UL) [L5613] ldv_state_variable_1 = 0 [L5614] ref_cnt = 0 [L5615] ldv_state_variable_0 = 1 VAL [last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldvarg0=257, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={13:0}, ldvarg4=9, ldvarg5=-3, ldvarg6=-2, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}, tmp=0, tmp___0=9, tmp___1={13:0}, tmp___2=257, tmp___3=-3, tmp___4=-2] [L5617] tmp___5 = __VERIFIER_nondet_int() [L5619] case 0: [L5651] case 1: VAL [last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldvarg0=257, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={13:0}, ldvarg4=9, ldvarg5=-3, ldvarg6=-2, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}, tmp=0, tmp___0=9, tmp___1={13:0}, tmp___2=257, tmp___3=-3, tmp___4=-2, tmp___5=1] [L5652] COND TRUE ldv_state_variable_0 != 0 [L5653] tmp___7 = __VERIFIER_nondet_int() [L5655] case 0: [L5663] case 1: VAL [last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldvarg0=257, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={13:0}, ldvarg4=9, ldvarg5=-3, ldvarg6=-2, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}, tmp=0, tmp___0=9, tmp___1={13:0}, tmp___2=257, tmp___3=-3, tmp___4=-2, tmp___5=1, tmp___7=1] [L5664] COND TRUE ldv_state_variable_0 == 1 [L5665] CALL, EXPR arcnet_rfc1051_init() [L5387] arc_proto_map[241] = & rfc1051_proto [L5388] EXPR arc_proto_map[241] [L5388] arc_proto_map[240] = arc_proto_map[241] [L5389] COND FALSE !((unsigned long )arc_bcast_proto == (unsigned long )arc_proto_default) [L5393] return (0); [L5665] RET, EXPR arcnet_rfc1051_init() [L5665] ldv_retval_0 = arcnet_rfc1051_init() [L5666] COND TRUE ldv_retval_0 == 0 [L5667] ldv_state_variable_0 = 3 [L5668] ldv_state_variable_1 = 1 [L5669] CALL ldv_initialize_ArcProto_1() [L5570] void *tmp ; [L5571] void *tmp___0 ; VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5573] CALL, EXPR ldv_successful_zalloc(20UL) VAL [\old(__size)=20, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5274] EXPR, FCALL calloc(1UL, __size) VAL [\old(__size)=20, __size=20, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, calloc(1UL, __size)={-4:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5274] void *p = calloc(1UL, __size); VAL [\old(__size)=20, __size=20, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, calloc(1UL, __size)={-4:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-4:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5275] CALL assume_abort_if_not(p != (void *)0) VAL [\old(cond)=1, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5271] COND FALSE !(!cond) [L5275] RET assume_abort_if_not(p != (void *)0) VAL [\old(__size)=20, __size=20, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, calloc(1UL, __size)={-4:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-4:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5276] return p; [L5573] RET, EXPR ldv_successful_zalloc(20UL) VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_successful_zalloc(20UL)={-4:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5573] tmp = ldv_successful_zalloc(20UL) [L5574] rfc1051_proto_group0 = (struct archdr *)tmp VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}, tmp={-4:0}] [L5575] CALL, EXPR ldv_successful_zalloc(3264UL) VAL [\old(__size)=3264, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5274] EXPR, FCALL calloc(1UL, __size) VAL [\old(__size)=3264, __size=3264, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, calloc(1UL, __size)={18446744073709551615:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5274] void *p = calloc(1UL, __size); VAL [\old(__size)=3264, __size=3264, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, calloc(1UL, __size)={18446744073709551615:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, p={18446744073709551615:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5275] CALL assume_abort_if_not(p != (void *)0) VAL [\old(cond)=1, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5271] COND FALSE !(!cond) [L5275] RET assume_abort_if_not(p != (void *)0) VAL [\old(__size)=3264, __size=3264, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, calloc(1UL, __size)={18446744073709551615:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, p={18446744073709551615:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5276] return p; [L5575] RET, EXPR ldv_successful_zalloc(3264UL) VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_successful_zalloc(3264UL)={18446744073709551615:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}, tmp={-4:0}] [L5575] tmp___0 = ldv_successful_zalloc(3264UL) [L5576] rfc1051_proto_group1 = (struct net_device *)tmp___0 [L5669] RET ldv_initialize_ArcProto_1() [L5672] COND FALSE !(ldv_retval_0 != 0) VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0=257, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={13:0}, ldvarg4=9, ldvarg5=-3, ldvarg6=-2, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}, tmp=0, tmp___0=9, tmp___1={13:0}, tmp___2=257, tmp___3=-3, tmp___4=-2, tmp___5=1, tmp___7=1] [L5617] tmp___5 = __VERIFIER_nondet_int() [L5619] case 0: VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0=257, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={13:0}, ldvarg4=9, ldvarg5=-3, ldvarg6=-2, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}, tmp=0, tmp___0=9, tmp___1={13:0}, tmp___2=257, tmp___3=-3, tmp___4=-2, tmp___5=0, tmp___7=1] [L5620] COND TRUE ldv_state_variable_1 != 0 [L5621] tmp___6 = __VERIFIER_nondet_int() [L5623] case 0: [L5630] case 1: [L5637] case 2: VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0=257, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={13:0}, ldvarg4=9, ldvarg5=-3, ldvarg6=-2, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}, tmp=0, tmp___0=9, tmp___1={13:0}, tmp___2=257, tmp___3=-3, tmp___4=-2, tmp___5=0, tmp___6=2, tmp___7=1] [L5638] COND TRUE ldv_state_variable_1 == 1 [L5639] CALL rx(rfc1051_proto_group1, ldvarg1, rfc1051_proto_group0, ldvarg0) [L5439] struct arcnet_local *lp ; [L5440] void *tmp ; [L5441] struct sk_buff *skb ; [L5442] struct archdr *pkt ; [L5443] int ofs ; [L5444] size_t __len ; [L5445] void *__ret ; VAL [\old(bufnum)=0, \old(length)=257, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, bufnum=0, dev={18446744073709551615:0}, dev={18446744073709551615:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, length=257, pkthdr={-4:0}, pkthdr={-4:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}] [L5447] CALL, EXPR netdev_priv((struct net_device const *)dev) VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, dev={18446744073709551615:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}] [L5365] return ((void *)dev + 3264U); [L5447] RET, EXPR netdev_priv((struct net_device const *)dev) VAL [\old(bufnum)=0, \old(length)=257, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, bufnum=0, dev={18446744073709551615:0}, dev={18446744073709551615:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, length=257, netdev_priv((struct net_device const *)dev)={18446744073709551615:3264}, pkthdr={-4:0}, pkthdr={-4:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}] [L5447] tmp = netdev_priv((struct net_device const *)dev) [L5448] lp = (struct arcnet_local *)tmp [L5449] pkt = pkthdr [L5450] COND TRUE length > 256 [L5451] ofs = 512 - length [L5455] CALL, EXPR ldv_alloc_skb_14((unsigned int )(length + 4), 32U) [L5741] struct sk_buff *tmp ; VAL [\old(priority)=32, \old(size)=261, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, priority=32, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}, size=261] [L5743] CALL, EXPR ldv_skb_alloc() VAL [\old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}] [L5899] void *skb ; [L5900] void *tmp___7 ; VAL [\old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}] [L5902] CALL, EXPR ldv_successful_zalloc(sizeof(struct sk_buff___0 )) VAL [\old(__size)=248, \old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}] [L5274] EXPR, FCALL calloc(1UL, __size) VAL [\old(__size)=248, \old(last_index)=0, __size=248, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, calloc(1UL, __size)={18446744073709551616:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}] [L5274] void *p = calloc(1UL, __size); VAL [\old(__size)=248, \old(last_index)=0, __size=248, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, calloc(1UL, __size)={18446744073709551616:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, p={18446744073709551616:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}] [L5275] CALL assume_abort_if_not(p != (void *)0) VAL [\old(cond)=1, \old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}] [L5271] COND FALSE !(!cond) [L5275] RET assume_abort_if_not(p != (void *)0) VAL [\old(__size)=248, \old(last_index)=0, __size=248, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, calloc(1UL, __size)={18446744073709551616:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, p={18446744073709551616:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}] [L5276] return p; [L5902] RET, EXPR ldv_successful_zalloc(sizeof(struct sk_buff___0 )) VAL [\old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_successful_zalloc(sizeof(struct sk_buff___0 ))={18446744073709551616:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}] [L5902] tmp___7 = ldv_successful_zalloc(sizeof(struct sk_buff___0 )) [L5903] skb = (struct sk_buff___0 *)tmp___7 VAL [\old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}, skb={18446744073709551616:0}, tmp___7={18446744073709551616:0}] [L5904] COND FALSE !(! skb) [L5907] CALL ldv_set_add(LDV_SKBS, skb) [L5775] int i ; [L5777] i = 0 VAL [\old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, e={18446744073709551616:0}, e={18446744073709551616:0}, i=0, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set={0:0}, set={0:0}, set_impl={11:0}] [L5778] COND TRUE 1 VAL [\old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, e={18446744073709551616:0}, e={18446744073709551616:0}, i=0, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set={0:0}, set={0:0}, set_impl={11:0}] [L5779] COND FALSE !(i < last_index) VAL [\old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, e={18446744073709551616:0}, e={18446744073709551616:0}, i=0, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set={0:0}, set={0:0}, set_impl={11:0}] [L5789] COND TRUE last_index < 15 [L5790] set_impl[last_index] = e [L5791] last_index = last_index + 1 VAL [\old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, e={18446744073709551616:0}, e={18446744073709551616:0}, i=0, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set={0:0}, set={0:0}, set_impl={11:0}] [L5907] RET ldv_set_add(LDV_SKBS, skb) [L5908] return (skb); VAL [\old(last_index)=0, \result={18446744073709551616:0}, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}, skb={18446744073709551616:0}, tmp___7={18446744073709551616:0}] [L5743] RET, EXPR ldv_skb_alloc() VAL [\old(priority)=32, \old(size)=261, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_skb_alloc()={18446744073709551616:0}, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, priority=32, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}, size=261] [L5743] tmp = ldv_skb_alloc() [L5744] COND TRUE \read(*tmp) VAL [\old(priority)=32, \old(size)=261, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, priority=32, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}, size=261, tmp={18446744073709551616:0}] [L5746] CALL, EXPR ldv_malloc(size) VAL [\old(size)=261, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}] [L5280] void *p ; [L5281] void *tmp ; [L5282] int tmp___0 ; [L5284] tmp___0 = __VERIFIER_nondet_int() [L5285] COND TRUE tmp___0 != 0 [L5286] return ((void *)0); VAL [\old(size)=261, \result={0:0}, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}, size=261, tmp___0=1] [L5746] RET, EXPR ldv_malloc(size) VAL [\old(priority)=32, \old(size)=261, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_malloc(size)={0:0}, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, priority=32, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}, size=261, tmp={18446744073709551616:0}] [L5746] tmp->head = ldv_malloc(size) [L5747] EXPR tmp->head [L5747] tmp->data = tmp->head [L5749] return (tmp); [L5455] RET, EXPR ldv_alloc_skb_14((unsigned int )(length + 4), 32U) [L5455] skb = ldv_alloc_skb_14((unsigned int )(length + 4), 32U) [L5456] COND TRUE (unsigned long )skb == (unsigned long )((struct sk_buff *)0) [L5457] COND FALSE !(arcnet_debug & 1) [L5461] EXPR dev->stats.rx_dropped [L5461] dev->stats.rx_dropped = dev->stats.rx_dropped + 1UL [L5639] RET rx(rfc1051_proto_group1, ldvarg1, rfc1051_proto_group0, ldvarg0) [L5640] ldv_state_variable_1 = 1 VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0=257, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={13:0}, ldvarg4=9, ldvarg5=-3, ldvarg6=-2, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}, tmp=0, tmp___0=9, tmp___1={13:0}, tmp___2=257, tmp___3=-3, tmp___4=-2, tmp___5=0, tmp___6=2, tmp___7=1] [L5617] tmp___5 = __VERIFIER_nondet_int() [L5619] case 0: [L5651] case 1: VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0=257, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={13:0}, ldvarg4=9, ldvarg5=-3, ldvarg6=-2, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}, tmp=0, tmp___0=9, tmp___1={13:0}, tmp___2=257, tmp___3=-3, tmp___4=-2, tmp___5=1, tmp___6=2, tmp___7=1] [L5652] COND TRUE ldv_state_variable_0 != 0 [L5653] tmp___7 = __VERIFIER_nondet_int() [L5655] case 0: VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0=257, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={13:0}, ldvarg4=9, ldvarg5=-3, ldvarg6=-2, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}, tmp=0, tmp___0=9, tmp___1={13:0}, tmp___2=257, tmp___3=-3, tmp___4=-2, tmp___5=1, tmp___6=2, tmp___7=0] [L5656] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L5657] CALL arcnet_rfc1051_exit() [L5399] FCALL arcnet_unregister_proto(& rfc1051_proto) [L5657] RET arcnet_rfc1051_exit() [L5658] ldv_state_variable_0 = 2 VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldvarg0=257, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={13:0}, ldvarg4=9, ldvarg5=-3, ldvarg6=-2, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}, tmp=0, tmp___0=9, tmp___1={13:0}, tmp___2=257, tmp___3=-3, tmp___4=-2, tmp___5=1, tmp___6=2, tmp___7=0] [L5693] CALL ldv_check_final_state() [L5966] int tmp___7 ; [L5968] CALL, EXPR ldv_set_is_empty(LDV_SKBS) [L5857] return (last_index == 0); [L5968] RET, EXPR ldv_set_is_empty(LDV_SKBS) [L5968] tmp___7 = ldv_set_is_empty(LDV_SKBS) [L5969] COND FALSE !(\read(tmp___7)) VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}, tmp___7=0] [L5971] CALL ldv_error() VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}] [L5332] reach_error() VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={11:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={18446744073709551615:0}, set_impl={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 430 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 415 mSDsluCounter, 2907 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2523 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 691 IncrementalHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 789 mSDtfsCounter, 691 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=506occurred in iteration=5, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 128 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 410 NumberOfCodeBlocks, 410 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 304 ConstructedInterpolants, 0 QuantifiedInterpolants, 397 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 150/150 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 [2021-11-23 02:33:55,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/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_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 73b3ed2538f968a3e44c5d7fd04ec7d3b91dc8bba4b6c9eed0228eaab08d1208 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:33:58,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:33:58,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:33:58,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:33:58,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:33:58,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:33:58,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:33:58,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:33:58,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:33:58,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:33:58,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:33:58,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:33:58,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:33:58,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:33:58,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:33:58,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:33:58,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:33:58,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:33:58,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:33:58,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:33:58,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:33:58,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:33:58,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:33:58,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:33:58,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:33:58,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:33:58,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:33:58,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:33:58,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:33:58,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:33:58,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:33:58,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:33:58,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:33:58,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:33:58,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:33:58,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:33:58,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:33:58,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:33:58,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:33:58,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:33:58,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:33:58,216 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-23 02:33:58,243 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:33:58,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:33:58,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:33:58,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:33:58,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:33:58,245 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:33:58,245 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:33:58,246 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:33:58,246 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:33:58,246 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:33:58,246 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:33:58,246 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:33:58,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:33:58,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:33:58,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:33:58,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:33:58,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:33:58,248 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 02:33:58,248 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 02:33:58,249 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 02:33:58,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:33:58,249 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:33:58,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:33:58,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:33:58,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 02:33:58,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:33:58,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:33:58,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:33:58,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:33:58,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:33:58,251 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 02:33:58,254 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 02:33:58,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:33:58,254 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:33:58,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:33:58,255 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_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73b3ed2538f968a3e44c5d7fd04ec7d3b91dc8bba4b6c9eed0228eaab08d1208 [2021-11-23 02:33:58,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:33:58,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:33:58,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:33:58,674 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:33:58,674 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:33:58,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2021-11-23 02:33:58,747 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/data/8fae9c81d/1bb4ec130aa7432db9a05cd12f58affe/FLAG2ba515c7e [2021-11-23 02:33:59,723 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:33:59,724 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2021-11-23 02:33:59,765 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/data/8fae9c81d/1bb4ec130aa7432db9a05cd12f58affe/FLAG2ba515c7e [2021-11-23 02:34:00,175 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/data/8fae9c81d/1bb4ec130aa7432db9a05cd12f58affe [2021-11-23 02:34:00,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:34:00,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:34:00,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:34:00,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:34:00,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:34:00,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:34:00" (1/1) ... [2021-11-23 02:34:00,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1bdfc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:00, skipping insertion in model container [2021-11-23 02:34:00,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:34:00" (1/1) ... [2021-11-23 02:34:00,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:34:00,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:34:01,165 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_5c718366-655f-4f11-80c4-0e0e136adde3/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i[153414,153427] [2021-11-23 02:34:01,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:34:01,365 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 02:34:01,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:34:01,593 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_5c718366-655f-4f11-80c4-0e0e136adde3/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i[153414,153427] [2021-11-23 02:34:01,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:34:01,706 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:34:01,879 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_5c718366-655f-4f11-80c4-0e0e136adde3/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i[153414,153427] [2021-11-23 02:34:01,928 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:34:01,968 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:34:01,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:01 WrapperNode [2021-11-23 02:34:01,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:34:01,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:34:01,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:34:01,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:34:01,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:01" (1/1) ... [2021-11-23 02:34:02,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:01" (1/1) ... [2021-11-23 02:34:02,073 INFO L137 Inliner]: procedures = 97, calls = 171, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 509 [2021-11-23 02:34:02,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:34:02,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:34:02,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:34:02,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:34:02,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:01" (1/1) ... [2021-11-23 02:34:02,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:01" (1/1) ... [2021-11-23 02:34:02,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:01" (1/1) ... [2021-11-23 02:34:02,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:01" (1/1) ... [2021-11-23 02:34:02,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:01" (1/1) ... [2021-11-23 02:34:02,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:01" (1/1) ... [2021-11-23 02:34:02,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:01" (1/1) ... [2021-11-23 02:34:02,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:34:02,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:34:02,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:34:02,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:34:02,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:01" (1/1) ... [2021-11-23 02:34:02,248 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:34:02,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:34:02,275 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:34:02,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:34:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-23 02:34:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-23 02:34:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 02:34:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:34:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:34:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:34:02,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:34:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 02:34:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 02:34:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:34:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:34:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:34:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:34:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~X~C_INT~X~$Pointer$~X~C_INT~TO~VOID [2021-11-23 02:34:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~X~C_INT~X~$Pointer$~X~C_INT~TO~VOID [2021-11-23 02:34:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-11-23 02:34:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-11-23 02:34:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 02:34:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 02:34:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-23 02:34:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-23 02:34:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-23 02:34:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-23 02:34:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 02:34:02,340 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 02:34:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:34:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:34:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:34:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:34:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-23 02:34:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-23 02:34:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-23 02:34:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:34:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-11-23 02:34:02,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-11-23 02:34:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-23 02:34:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-23 02:34:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-23 02:34:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:34:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 02:34:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:34:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 02:34:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 02:34:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2021-11-23 02:34:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2021-11-23 02:34:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 02:34:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 02:34:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-23 02:34:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:34:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:34:02,838 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:34:02,841 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:34:03,046 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:34:09,397 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:34:09,409 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:34:09,409 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 02:34:09,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:34:09 BoogieIcfgContainer [2021-11-23 02:34:09,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:34:09,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:34:09,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:34:09,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:34:09,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:34:00" (1/3) ... [2021-11-23 02:34:09,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb3e639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:34:09, skipping insertion in model container [2021-11-23 02:34:09,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:01" (2/3) ... [2021-11-23 02:34:09,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb3e639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:34:09, skipping insertion in model container [2021-11-23 02:34:09,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:34:09" (3/3) ... [2021-11-23 02:34:09,423 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2021-11-23 02:34:09,430 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:34:09,430 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:34:09,492 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:34:09,501 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=FINITE_AUTOMATA, 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 [2021-11-23 02:34:09,501 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:34:09,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 146 states have (on average 1.4246575342465753) internal successors, (208), 151 states have internal predecessors, (208), 25 states have call successors, (25), 11 states have call predecessors, (25), 10 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-23 02:34:09,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 02:34:09,539 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:34:09,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:34:09,540 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:34:09,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:34:09,547 INFO L85 PathProgramCache]: Analyzing trace with hash -2020398219, now seen corresponding path program 1 times [2021-11-23 02:34:09,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:34:09,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887968312] [2021-11-23 02:34:09,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:09,566 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:34:09,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:34:09,574 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:34:09,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 02:34:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:09,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:34:09,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:34:10,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:34:10,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:34:10,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:34:10,321 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:34:10,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887968312] [2021-11-23 02:34:10,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887968312] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:34:10,322 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:34:10,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-23 02:34:10,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136791013] [2021-11-23 02:34:10,325 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:34:10,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:34:10,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:34:10,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:34:10,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:34:10,388 INFO L87 Difference]: Start difference. First operand has 183 states, 146 states have (on average 1.4246575342465753) internal successors, (208), 151 states have internal predecessors, (208), 25 states have call successors, (25), 11 states have call predecessors, (25), 10 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 02:34:10,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:34:10,498 INFO L93 Difference]: Finished difference Result 362 states and 520 transitions. [2021-11-23 02:34:10,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:34:10,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2021-11-23 02:34:10,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:34:10,529 INFO L225 Difference]: With dead ends: 362 [2021-11-23 02:34:10,530 INFO L226 Difference]: Without dead ends: 174 [2021-11-23 02:34:10,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:34:10,549 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 0 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:34:10,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 728 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:34:10,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-11-23 02:34:10,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2021-11-23 02:34:10,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 142 states have (on average 1.352112676056338) internal successors, (192), 142 states have internal predecessors, (192), 22 states have call successors, (22), 10 states have call predecessors, (22), 9 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-23 02:34:10,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 235 transitions. [2021-11-23 02:34:10,652 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 235 transitions. Word has length 35 [2021-11-23 02:34:10,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:34:10,654 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 235 transitions. [2021-11-23 02:34:10,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 02:34:10,655 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 235 transitions. [2021-11-23 02:34:10,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 02:34:10,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:34:10,658 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:34:10,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:34:10,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:34:10,861 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:34:10,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:34:10,862 INFO L85 PathProgramCache]: Analyzing trace with hash 21026425, now seen corresponding path program 1 times [2021-11-23 02:34:10,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:34:10,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474411721] [2021-11-23 02:34:10,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:10,863 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:34:10,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:34:10,865 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:34:10,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 02:34:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:11,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 02:34:11,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:34:11,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:34:11,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:34:11,364 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:34:11,364 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:34:11,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474411721] [2021-11-23 02:34:11,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474411721] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:34:11,365 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:34:11,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-23 02:34:11,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023823147] [2021-11-23 02:34:11,366 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:34:11,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:34:11,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:34:11,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:34:11,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:34:11,369 INFO L87 Difference]: Start difference. First operand 174 states and 235 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 02:34:11,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:34:11,729 INFO L93 Difference]: Finished difference Result 634 states and 865 transitions. [2021-11-23 02:34:11,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:34:11,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2021-11-23 02:34:11,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:34:11,736 INFO L225 Difference]: With dead ends: 634 [2021-11-23 02:34:11,737 INFO L226 Difference]: Without dead ends: 469 [2021-11-23 02:34:11,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:34:11,750 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 407 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:34:11,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 847 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:34:11,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2021-11-23 02:34:11,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2021-11-23 02:34:11,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 383 states have (on average 1.3629242819843341) internal successors, (522), 383 states have internal predecessors, (522), 58 states have call successors, (58), 28 states have call predecessors, (58), 27 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2021-11-23 02:34:11,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 637 transitions. [2021-11-23 02:34:11,812 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 637 transitions. Word has length 36 [2021-11-23 02:34:11,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:34:11,813 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 637 transitions. [2021-11-23 02:34:11,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 02:34:11,814 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 637 transitions. [2021-11-23 02:34:11,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 02:34:11,817 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:34:11,817 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] [2021-11-23 02:34:11,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:34:12,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:34:12,018 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:34:12,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:34:12,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1989051346, now seen corresponding path program 1 times [2021-11-23 02:34:12,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:34:12,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273756461] [2021-11-23 02:34:12,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:12,021 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:34:12,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:34:12,028 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:34:12,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 02:34:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:12,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:34:12,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:34:12,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:34:12,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:34:12,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:34:12,536 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:34:12,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273756461] [2021-11-23 02:34:12,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273756461] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:34:12,536 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:34:12,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-23 02:34:12,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062409775] [2021-11-23 02:34:12,537 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:34:12,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:34:12,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:34:12,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:34:12,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:34:12,539 INFO L87 Difference]: Start difference. First operand 469 states and 637 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 02:34:12,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:34:12,760 INFO L93 Difference]: Finished difference Result 928 states and 1261 transitions. [2021-11-23 02:34:12,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:34:12,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2021-11-23 02:34:12,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:34:12,766 INFO L225 Difference]: With dead ends: 928 [2021-11-23 02:34:12,767 INFO L226 Difference]: Without dead ends: 468 [2021-11-23 02:34:12,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:34:12,772 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 363 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:34:12,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 579 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:34:12,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2021-11-23 02:34:12,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2021-11-23 02:34:12,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 382 states have (on average 1.356020942408377) internal successors, (518), 382 states have internal predecessors, (518), 58 states have call successors, (58), 28 states have call predecessors, (58), 27 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2021-11-23 02:34:12,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 633 transitions. [2021-11-23 02:34:12,820 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 633 transitions. Word has length 40 [2021-11-23 02:34:12,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:34:12,821 INFO L470 AbstractCegarLoop]: Abstraction has 468 states and 633 transitions. [2021-11-23 02:34:12,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 02:34:12,821 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 633 transitions. [2021-11-23 02:34:12,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-23 02:34:12,827 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:34:12,827 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:34:12,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:34:13,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:34:13,043 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:34:13,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:34:13,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1384341438, now seen corresponding path program 1 times [2021-11-23 02:34:13,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:34:13,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517814673] [2021-11-23 02:34:13,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:13,046 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:34:13,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:34:13,048 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:34:13,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 02:34:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:13,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 02:34:13,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:34:13,762 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:34:13,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:34:14,119 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-23 02:34:14,120 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:34:14,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517814673] [2021-11-23 02:34:14,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517814673] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:34:14,121 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:34:14,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-23 02:34:14,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868991926] [2021-11-23 02:34:14,122 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:34:14,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 02:34:14,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:34:14,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 02:34:14,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:34:14,124 INFO L87 Difference]: Start difference. First operand 468 states and 633 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-23 02:34:14,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:34:14,420 INFO L93 Difference]: Finished difference Result 1383 states and 1884 transitions. [2021-11-23 02:34:14,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:34:14,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 81 [2021-11-23 02:34:14,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:34:14,436 INFO L225 Difference]: With dead ends: 1383 [2021-11-23 02:34:14,436 INFO L226 Difference]: Without dead ends: 919 [2021-11-23 02:34:14,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:34:14,442 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 184 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:34:14,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 1193 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:34:14,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2021-11-23 02:34:14,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 907. [2021-11-23 02:34:14,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 738 states have (on average 1.3577235772357723) internal successors, (1002), 738 states have internal predecessors, (1002), 114 states have call successors, (114), 55 states have call predecessors, (114), 54 states have return successors, (119), 113 states have call predecessors, (119), 113 states have call successors, (119) [2021-11-23 02:34:14,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1235 transitions. [2021-11-23 02:34:14,569 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1235 transitions. Word has length 81 [2021-11-23 02:34:14,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:34:14,570 INFO L470 AbstractCegarLoop]: Abstraction has 907 states and 1235 transitions. [2021-11-23 02:34:14,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-23 02:34:14,571 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1235 transitions. [2021-11-23 02:34:14,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-23 02:34:14,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:34:14,584 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:34:14,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 02:34:14,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:34:14,804 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:34:14,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:34:14,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1203544401, now seen corresponding path program 1 times [2021-11-23 02:34:14,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:34:14,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2130038536] [2021-11-23 02:34:14,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:14,807 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:34:14,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:34:14,809 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:34:14,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 02:34:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:15,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 02:34:15,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:34:15,740 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-23 02:34:15,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:34:16,415 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-23 02:34:16,415 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:34:16,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2130038536] [2021-11-23 02:34:16,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2130038536] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:34:16,416 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:34:16,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2021-11-23 02:34:16,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18819436] [2021-11-23 02:34:16,417 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:34:16,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 02:34:16,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:34:16,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 02:34:16,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-23 02:34:16,419 INFO L87 Difference]: Start difference. First operand 907 states and 1235 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-23 02:34:16,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:34:16,866 INFO L93 Difference]: Finished difference Result 1977 states and 2728 transitions. [2021-11-23 02:34:16,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 02:34:16,867 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 128 [2021-11-23 02:34:16,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:34:16,880 INFO L225 Difference]: With dead ends: 1977 [2021-11-23 02:34:16,880 INFO L226 Difference]: Without dead ends: 1079 [2021-11-23 02:34:16,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-23 02:34:16,884 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 136 mSDsluCounter, 2384 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:34:16,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 2702 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:34:16,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2021-11-23 02:34:16,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 907. [2021-11-23 02:34:16,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 738 states have (on average 1.3414634146341464) internal successors, (990), 738 states have internal predecessors, (990), 114 states have call successors, (114), 55 states have call predecessors, (114), 54 states have return successors, (119), 113 states have call predecessors, (119), 113 states have call successors, (119) [2021-11-23 02:34:16,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1223 transitions. [2021-11-23 02:34:16,983 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1223 transitions. Word has length 128 [2021-11-23 02:34:16,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:34:16,984 INFO L470 AbstractCegarLoop]: Abstraction has 907 states and 1223 transitions. [2021-11-23 02:34:16,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-23 02:34:16,984 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1223 transitions. [2021-11-23 02:34:16,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-23 02:34:16,988 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:34:16,989 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:34:17,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 02:34:17,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:34:17,210 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:34:17,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:34:17,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1396240182, now seen corresponding path program 1 times [2021-11-23 02:34:17,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:34:17,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114608976] [2021-11-23 02:34:17,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:17,213 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:34:17,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:34:17,214 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:34:17,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 02:34:17,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:17,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 02:34:17,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:34:18,544 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-23 02:34:18,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:34:20,554 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-23 02:34:20,554 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:34:20,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114608976] [2021-11-23 02:34:20,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114608976] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:34:20,555 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:34:20,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-11-23 02:34:20,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056358940] [2021-11-23 02:34:20,555 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:34:20,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-23 02:34:20,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:34:20,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-23 02:34:20,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-11-23 02:34:20,558 INFO L87 Difference]: Start difference. First operand 907 states and 1223 transitions. Second operand has 22 states, 22 states have (on average 4.363636363636363) internal successors, (96), 18 states have internal predecessors, (96), 8 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (16), 11 states have call predecessors, (16), 7 states have call successors, (16) [2021-11-23 02:34:23,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:34:23,142 INFO L93 Difference]: Finished difference Result 1965 states and 2680 transitions. [2021-11-23 02:34:23,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 02:34:23,143 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.363636363636363) internal successors, (96), 18 states have internal predecessors, (96), 8 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (16), 11 states have call predecessors, (16), 7 states have call successors, (16) Word has length 134 [2021-11-23 02:34:23,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:34:23,153 INFO L225 Difference]: With dead ends: 1965 [2021-11-23 02:34:23,153 INFO L226 Difference]: Without dead ends: 1067 [2021-11-23 02:34:23,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2021-11-23 02:34:23,158 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 477 mSDsluCounter, 4582 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 4891 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:34:23,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [477 Valid, 4891 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-23 02:34:23,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2021-11-23 02:34:23,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 895. [2021-11-23 02:34:23,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 726 states have (on average 1.3305785123966942) internal successors, (966), 726 states have internal predecessors, (966), 114 states have call successors, (114), 55 states have call predecessors, (114), 54 states have return successors, (119), 113 states have call predecessors, (119), 113 states have call successors, (119) [2021-11-23 02:34:23,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1199 transitions. [2021-11-23 02:34:23,289 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1199 transitions. Word has length 134 [2021-11-23 02:34:23,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:34:23,291 INFO L470 AbstractCegarLoop]: Abstraction has 895 states and 1199 transitions. [2021-11-23 02:34:23,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.363636363636363) internal successors, (96), 18 states have internal predecessors, (96), 8 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (16), 11 states have call predecessors, (16), 7 states have call successors, (16) [2021-11-23 02:34:23,291 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1199 transitions. [2021-11-23 02:34:23,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-23 02:34:23,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:34:23,302 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:34:23,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 02:34:23,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:34:23,521 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:34:23,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:34:23,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1747283074, now seen corresponding path program 1 times [2021-11-23 02:34:23,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:34:23,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836131392] [2021-11-23 02:34:23,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:23,523 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:34:23,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:34:23,524 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:34:23,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-23 02:34:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:23,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 02:34:23,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:34:24,365 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-11-23 02:34:24,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:34:24,780 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-23 02:34:24,780 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:34:24,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836131392] [2021-11-23 02:34:24,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836131392] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:34:24,780 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:34:24,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-23 02:34:24,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560395266] [2021-11-23 02:34:24,781 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:34:24,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:34:24,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:34:24,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:34:24,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:34:24,783 INFO L87 Difference]: Start difference. First operand 895 states and 1199 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-23 02:34:24,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:34:24,887 INFO L93 Difference]: Finished difference Result 1929 states and 2614 transitions. [2021-11-23 02:34:24,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:34:24,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 165 [2021-11-23 02:34:24,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:34:24,897 INFO L225 Difference]: With dead ends: 1929 [2021-11-23 02:34:24,897 INFO L226 Difference]: Without dead ends: 1043 [2021-11-23 02:34:24,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:34:24,901 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 108 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:34:24,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 692 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:34:24,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2021-11-23 02:34:24,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 883. [2021-11-23 02:34:24,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 720 states have (on average 1.325) internal successors, (954), 720 states have internal predecessors, (954), 108 states have call successors, (108), 55 states have call predecessors, (108), 54 states have return successors, (113), 107 states have call predecessors, (113), 107 states have call successors, (113) [2021-11-23 02:34:24,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1175 transitions. [2021-11-23 02:34:24,984 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1175 transitions. Word has length 165 [2021-11-23 02:34:24,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:34:24,984 INFO L470 AbstractCegarLoop]: Abstraction has 883 states and 1175 transitions. [2021-11-23 02:34:24,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-23 02:34:24,985 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1175 transitions. [2021-11-23 02:34:24,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-23 02:34:24,990 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:34:24,990 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:34:25,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-23 02:34:25,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:34:25,204 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:34:25,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:34:25,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1434773186, now seen corresponding path program 1 times [2021-11-23 02:34:25,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:34:25,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942070765] [2021-11-23 02:34:25,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:25,205 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:34:25,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:34:25,206 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:34:25,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-23 02:34:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:25,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 02:34:25,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:34:26,066 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-11-23 02:34:26,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:34:26,572 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-23 02:34:26,573 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:34:26,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942070765] [2021-11-23 02:34:26,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942070765] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:34:26,575 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:34:26,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-23 02:34:26,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010215775] [2021-11-23 02:34:26,575 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:34:26,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 02:34:26,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:34:26,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 02:34:26,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:34:26,578 INFO L87 Difference]: Start difference. First operand 883 states and 1175 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-23 02:34:28,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:28,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:34:28,932 INFO L93 Difference]: Finished difference Result 1941 states and 2626 transitions. [2021-11-23 02:34:28,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:34:28,934 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) Word has length 165 [2021-11-23 02:34:28,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:34:28,943 INFO L225 Difference]: With dead ends: 1941 [2021-11-23 02:34:28,943 INFO L226 Difference]: Without dead ends: 1049 [2021-11-23 02:34:28,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:34:28,947 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 217 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:34:28,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 1112 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-23 02:34:28,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2021-11-23 02:34:29,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 889. [2021-11-23 02:34:29,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 726 states have (on average 1.322314049586777) internal successors, (960), 726 states have internal predecessors, (960), 108 states have call successors, (108), 55 states have call predecessors, (108), 54 states have return successors, (113), 107 states have call predecessors, (113), 107 states have call successors, (113) [2021-11-23 02:34:29,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1181 transitions. [2021-11-23 02:34:29,033 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1181 transitions. Word has length 165 [2021-11-23 02:34:29,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:34:29,033 INFO L470 AbstractCegarLoop]: Abstraction has 889 states and 1181 transitions. [2021-11-23 02:34:29,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-23 02:34:29,034 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1181 transitions. [2021-11-23 02:34:29,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-23 02:34:29,039 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:34:29,040 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:34:29,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-23 02:34:29,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:34:29,263 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:34:29,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:34:29,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1642622242, now seen corresponding path program 1 times [2021-11-23 02:34:29,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:34:29,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482894530] [2021-11-23 02:34:29,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:29,264 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:34:29,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:34:29,265 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:34:29,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-23 02:34:29,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:29,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:34:29,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:34:30,257 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-11-23 02:34:30,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:34:30,915 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-23 02:34:30,915 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:34:30,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482894530] [2021-11-23 02:34:30,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1482894530] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:34:30,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1584344184] [2021-11-23 02:34:30,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:30,916 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 02:34:30,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 [2021-11-23 02:34:30,918 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 02:34:30,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-23 02:34:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:31,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 02:34:31,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:34:31,730 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-11-23 02:34:31,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:34:32,295 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-11-23 02:34:32,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1584344184] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:34:32,296 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-23 02:34:32,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 6] total 13 [2021-11-23 02:34:32,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131476872] [2021-11-23 02:34:32,297 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:34:32,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 02:34:32,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:34:32,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 02:34:32,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-11-23 02:34:32,299 INFO L87 Difference]: Start difference. First operand 889 states and 1181 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-23 02:34:34,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:34,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:34:34,570 INFO L93 Difference]: Finished difference Result 1947 states and 2620 transitions. [2021-11-23 02:34:34,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:34:34,572 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) Word has length 166 [2021-11-23 02:34:34,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:34:34,580 INFO L225 Difference]: With dead ends: 1947 [2021-11-23 02:34:34,580 INFO L226 Difference]: Without dead ends: 1055 [2021-11-23 02:34:34,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 661 GetRequests, 649 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-23 02:34:34,584 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 216 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:34:34,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 1114 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-23 02:34:34,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2021-11-23 02:34:34,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 895. [2021-11-23 02:34:34,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 732 states have (on average 1.319672131147541) internal successors, (966), 732 states have internal predecessors, (966), 108 states have call successors, (108), 55 states have call predecessors, (108), 54 states have return successors, (113), 107 states have call predecessors, (113), 107 states have call successors, (113) [2021-11-23 02:34:34,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1187 transitions. [2021-11-23 02:34:34,661 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1187 transitions. Word has length 166 [2021-11-23 02:34:34,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:34:34,662 INFO L470 AbstractCegarLoop]: Abstraction has 895 states and 1187 transitions. [2021-11-23 02:34:34,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-23 02:34:34,663 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1187 transitions. [2021-11-23 02:34:34,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-23 02:34:34,668 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:34:34,668 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:34:34,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-23 02:34:34,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-23 02:34:35,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:34:35,072 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:34:35,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:34:35,073 INFO L85 PathProgramCache]: Analyzing trace with hash -53198716, now seen corresponding path program 1 times [2021-11-23 02:34:35,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:34:35,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494517739] [2021-11-23 02:34:35,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:35,074 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:34:35,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:34:35,075 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:34:35,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-23 02:34:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:35,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:34:35,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:34:35,972 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-11-23 02:34:35,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:34:36,577 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-11-23 02:34:36,577 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:34:36,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494517739] [2021-11-23 02:34:36,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1494517739] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:34:36,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1969671652] [2021-11-23 02:34:36,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:36,579 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 02:34:36,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 [2021-11-23 02:34:36,580 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 02:34:36,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-23 02:34:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:37,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:34:37,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:34:37,734 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-11-23 02:34:37,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:34:38,279 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-11-23 02:34:38,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1969671652] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:34:38,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421557661] [2021-11-23 02:34:38,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:38,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:34:38,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:34:38,283 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:34:38,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-23 02:34:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:38,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 02:34:38,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:34:39,618 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 35 proven. 28 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-23 02:34:39,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:34:40,838 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-11-23 02:34:40,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421557661] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 02:34:40,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-23 02:34:40,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6, 6, 6, 6, 8] total 22 [2021-11-23 02:34:40,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385459598] [2021-11-23 02:34:40,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:34:40,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 02:34:40,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:34:40,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 02:34:40,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2021-11-23 02:34:40,842 INFO L87 Difference]: Start difference. First operand 895 states and 1187 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 5 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-23 02:34:43,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:46,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:50,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:52,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:54,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:55,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:34:55,603 INFO L93 Difference]: Finished difference Result 2902 states and 3858 transitions. [2021-11-23 02:34:55,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 02:34:55,605 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 5 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 167 [2021-11-23 02:34:55,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:34:55,628 INFO L225 Difference]: With dead ends: 2902 [2021-11-23 02:34:55,628 INFO L226 Difference]: Without dead ends: 2407 [2021-11-23 02:34:55,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1013 GetRequests, 980 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=214, Invalid=976, Unknown=0, NotChecked=0, Total=1190 [2021-11-23 02:34:55,633 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 1462 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 355 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:34:55,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1483 Valid, 1262 Invalid, 1034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 674 Invalid, 5 Unknown, 0 Unchecked, 13.3s Time] [2021-11-23 02:34:55,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2407 states. [2021-11-23 02:34:55,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2407 to 2227. [2021-11-23 02:34:55,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2227 states, 1818 states have (on average 1.3217821782178218) internal successors, (2403), 1824 states have internal predecessors, (2403), 267 states have call successors, (267), 136 states have call predecessors, (267), 141 states have return successors, (293), 266 states have call predecessors, (293), 266 states have call successors, (293) [2021-11-23 02:34:55,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 2963 transitions. [2021-11-23 02:34:55,862 INFO L78 Accepts]: Start accepts. Automaton has 2227 states and 2963 transitions. Word has length 167 [2021-11-23 02:34:55,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:34:55,863 INFO L470 AbstractCegarLoop]: Abstraction has 2227 states and 2963 transitions. [2021-11-23 02:34:55,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 5 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-23 02:34:55,863 INFO L276 IsEmpty]: Start isEmpty. Operand 2227 states and 2963 transitions. [2021-11-23 02:34:55,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-23 02:34:55,871 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:34:55,871 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:34:55,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-23 02:34:56,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-23 02:34:56,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-23 02:34:56,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:34:56,485 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:34:56,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:34:56,486 INFO L85 PathProgramCache]: Analyzing trace with hash 167064645, now seen corresponding path program 1 times [2021-11-23 02:34:56,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:34:56,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340635121] [2021-11-23 02:34:56,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:56,488 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:34:56,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:34:56,490 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:34:56,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-23 02:34:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:57,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:34:57,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:34:57,415 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-11-23 02:34:57,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:34:57,989 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-11-23 02:34:57,989 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:34:57,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340635121] [2021-11-23 02:34:57,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340635121] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:34:57,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1046449238] [2021-11-23 02:34:57,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:57,990 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 02:34:57,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 [2021-11-23 02:34:57,992 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 02:34:57,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-23 02:34:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:58,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:34:58,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:34:58,673 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-11-23 02:34:58,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:34:59,074 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-11-23 02:34:59,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1046449238] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:34:59,074 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-23 02:34:59,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [6, 6] total 13 [2021-11-23 02:34:59,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171760156] [2021-11-23 02:34:59,075 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:34:59,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:34:59,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:34:59,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:34:59,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-23 02:34:59,077 INFO L87 Difference]: Start difference. First operand 2227 states and 2963 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-23 02:34:59,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:34:59,504 INFO L93 Difference]: Finished difference Result 4727 states and 6350 transitions. [2021-11-23 02:34:59,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 02:34:59,504 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 169 [2021-11-23 02:34:59,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:34:59,523 INFO L225 Difference]: With dead ends: 4727 [2021-11-23 02:34:59,524 INFO L226 Difference]: Without dead ends: 2509 [2021-11-23 02:34:59,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 661 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2021-11-23 02:34:59,531 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 34 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:34:59,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 868 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:34:59,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2509 states. [2021-11-23 02:34:59,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 2341. [2021-11-23 02:34:59,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2341 states, 1932 states have (on average 1.3307453416149069) internal successors, (2571), 1938 states have internal predecessors, (2571), 267 states have call successors, (267), 136 states have call predecessors, (267), 141 states have return successors, (293), 266 states have call predecessors, (293), 266 states have call successors, (293) [2021-11-23 02:34:59,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2341 states to 2341 states and 3131 transitions. [2021-11-23 02:34:59,726 INFO L78 Accepts]: Start accepts. Automaton has 2341 states and 3131 transitions. Word has length 169 [2021-11-23 02:34:59,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:34:59,727 INFO L470 AbstractCegarLoop]: Abstraction has 2341 states and 3131 transitions. [2021-11-23 02:34:59,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-23 02:34:59,728 INFO L276 IsEmpty]: Start isEmpty. Operand 2341 states and 3131 transitions. [2021-11-23 02:34:59,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-23 02:34:59,734 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:34:59,735 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:34:59,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-23 02:34:59,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-23 02:35:00,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:35:00,138 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:35:00,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:35:00,139 INFO L85 PathProgramCache]: Analyzing trace with hash 217846472, now seen corresponding path program 1 times [2021-11-23 02:35:00,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:35:00,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128836943] [2021-11-23 02:35:00,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:35:00,140 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:35:00,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:35:00,141 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:35:00,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-23 02:35:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:35:00,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:35:00,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:35:01,170 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 35 proven. 28 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-23 02:35:01,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:35:01,833 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-11-23 02:35:01,834 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:35:01,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128836943] [2021-11-23 02:35:01,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1128836943] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 02:35:01,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:35:01,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2021-11-23 02:35:01,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347016665] [2021-11-23 02:35:01,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:35:01,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:35:01,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:35:01,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:35:01,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-23 02:35:01,837 INFO L87 Difference]: Start difference. First operand 2341 states and 3131 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-23 02:35:04,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:06,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:06,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:35:06,774 INFO L93 Difference]: Finished difference Result 4565 states and 6116 transitions. [2021-11-23 02:35:06,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:35:06,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 171 [2021-11-23 02:35:06,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:35:06,789 INFO L225 Difference]: With dead ends: 4565 [2021-11-23 02:35:06,789 INFO L226 Difference]: Without dead ends: 2209 [2021-11-23 02:35:06,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-11-23 02:35:06,796 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 292 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:35:06,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 643 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 216 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2021-11-23 02:35:06,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2209 states. [2021-11-23 02:35:06,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2209 to 2191. [2021-11-23 02:35:06,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 1803 states have (on average 1.3327787021630615) internal successors, (2403), 1812 states have internal predecessors, (2403), 252 states have call successors, (252), 130 states have call predecessors, (252), 135 states have return successors, (281), 248 states have call predecessors, (281), 251 states have call successors, (281) [2021-11-23 02:35:06,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 2936 transitions. [2021-11-23 02:35:06,983 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 2936 transitions. Word has length 171 [2021-11-23 02:35:06,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:35:06,987 INFO L470 AbstractCegarLoop]: Abstraction has 2191 states and 2936 transitions. [2021-11-23 02:35:06,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-23 02:35:06,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 2936 transitions. [2021-11-23 02:35:06,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-23 02:35:06,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:35:06,992 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:35:07,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-23 02:35:07,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:35:07,207 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:35:07,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:35:07,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1899382036, now seen corresponding path program 1 times [2021-11-23 02:35:07,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:35:07,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22088932] [2021-11-23 02:35:07,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:35:07,209 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:35:07,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:35:07,210 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:35:07,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-23 02:35:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:35:07,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:35:07,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:35:08,000 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-23 02:35:08,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:35:08,486 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-11-23 02:35:08,486 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:35:08,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22088932] [2021-11-23 02:35:08,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22088932] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:35:08,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1125240258] [2021-11-23 02:35:08,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:35:08,487 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 02:35:08,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 [2021-11-23 02:35:08,494 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 02:35:08,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-23 02:35:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:35:09,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:35:09,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:35:09,473 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-23 02:35:09,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:35:09,867 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-11-23 02:35:09,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1125240258] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:35:09,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112905389] [2021-11-23 02:35:09,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:35:09,868 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:35:09,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:35:09,869 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:35:09,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-23 02:35:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:35:10,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:35:10,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:35:10,455 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-23 02:35:10,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:35:10,964 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-11-23 02:35:10,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112905389] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:35:10,965 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 02:35:10,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 15 [2021-11-23 02:35:10,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252516902] [2021-11-23 02:35:10,966 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 02:35:10,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-23 02:35:10,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:35:10,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-23 02:35:10,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-11-23 02:35:10,968 INFO L87 Difference]: Start difference. First operand 2191 states and 2936 transitions. Second operand has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 2 states have call predecessors, (17), 5 states have call successors, (17) [2021-11-23 02:35:13,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:15,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:15,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:35:15,468 INFO L93 Difference]: Finished difference Result 4195 states and 5640 transitions. [2021-11-23 02:35:15,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 02:35:15,469 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 2 states have call predecessors, (17), 5 states have call successors, (17) Word has length 171 [2021-11-23 02:35:15,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:35:15,490 INFO L225 Difference]: With dead ends: 4195 [2021-11-23 02:35:15,490 INFO L226 Difference]: Without dead ends: 2215 [2021-11-23 02:35:15,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1023 GetRequests, 1007 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2021-11-23 02:35:15,497 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 226 mSDsluCounter, 2215 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 22 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 2523 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:35:15,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 2523 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 54 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2021-11-23 02:35:15,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2215 states. [2021-11-23 02:35:15,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2215 to 2215. [2021-11-23 02:35:15,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2215 states, 1827 states have (on average 1.3284072249589491) internal successors, (2427), 1836 states have internal predecessors, (2427), 252 states have call successors, (252), 130 states have call predecessors, (252), 135 states have return successors, (281), 248 states have call predecessors, (281), 251 states have call successors, (281) [2021-11-23 02:35:15,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 2960 transitions. [2021-11-23 02:35:15,651 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 2960 transitions. Word has length 171 [2021-11-23 02:35:15,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:35:15,652 INFO L470 AbstractCegarLoop]: Abstraction has 2215 states and 2960 transitions. [2021-11-23 02:35:15,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 2 states have call predecessors, (17), 5 states have call successors, (17) [2021-11-23 02:35:15,652 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 2960 transitions. [2021-11-23 02:35:15,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-23 02:35:15,657 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:35:15,657 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:35:15,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-23 02:35:15,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-11-23 02:35:16,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-11-23 02:35:16,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:35:16,283 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:35:16,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:35:16,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1689207402, now seen corresponding path program 2 times [2021-11-23 02:35:16,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:35:16,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376764112] [2021-11-23 02:35:16,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 02:35:16,284 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:35:16,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:35:16,285 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:35:16,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-23 02:35:16,898 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 02:35:16,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 02:35:16,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 02:35:16,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:35:17,285 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-11-23 02:35:17,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:35:17,902 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-11-23 02:35:17,902 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:35:17,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376764112] [2021-11-23 02:35:17,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376764112] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:35:17,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [70595601] [2021-11-23 02:35:17,903 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 02:35:17,903 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 02:35:17,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 [2021-11-23 02:35:17,904 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 02:35:17,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2021-11-23 02:35:18,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 02:35:18,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 02:35:18,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 02:35:18,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:35:19,062 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-11-23 02:35:19,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:35:19,419 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-11-23 02:35:19,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [70595601] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:35:19,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790105176] [2021-11-23 02:35:19,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 02:35:19,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:35:19,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:35:19,424 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:35:19,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-23 02:35:20,227 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 02:35:20,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 02:35:20,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 02:35:20,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:35:20,687 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-11-23 02:35:20,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:35:21,535 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-11-23 02:35:21,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790105176] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:35:21,536 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 02:35:21,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 19 [2021-11-23 02:35:21,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845720008] [2021-11-23 02:35:21,537 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 02:35:21,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-23 02:35:21,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:35:21,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-23 02:35:21,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-11-23 02:35:21,539 INFO L87 Difference]: Start difference. First operand 2215 states and 2960 transitions. Second operand has 19 states, 19 states have (on average 7.0) internal successors, (133), 19 states have internal predecessors, (133), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 2 states have call predecessors, (17), 5 states have call successors, (17) [2021-11-23 02:35:23,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:25,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:27,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:28,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:35:28,217 INFO L93 Difference]: Finished difference Result 4219 states and 5652 transitions. [2021-11-23 02:35:28,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 02:35:28,217 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.0) internal successors, (133), 19 states have internal predecessors, (133), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 2 states have call predecessors, (17), 5 states have call successors, (17) Word has length 173 [2021-11-23 02:35:28,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:35:28,230 INFO L225 Difference]: With dead ends: 4219 [2021-11-23 02:35:28,231 INFO L226 Difference]: Without dead ends: 2239 [2021-11-23 02:35:28,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1035 GetRequests, 1015 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2021-11-23 02:35:28,235 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 328 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 37 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 3127 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:35:28,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 3127 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 87 Invalid, 3 Unknown, 0 Unchecked, 6.4s Time] [2021-11-23 02:35:28,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2239 states. [2021-11-23 02:35:28,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2239 to 2239. [2021-11-23 02:35:28,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2239 states, 1851 states have (on average 1.3241491085899513) internal successors, (2451), 1860 states have internal predecessors, (2451), 252 states have call successors, (252), 130 states have call predecessors, (252), 135 states have return successors, (281), 248 states have call predecessors, (281), 251 states have call successors, (281) [2021-11-23 02:35:28,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 2984 transitions. [2021-11-23 02:35:28,385 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 2984 transitions. Word has length 173 [2021-11-23 02:35:28,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:35:28,385 INFO L470 AbstractCegarLoop]: Abstraction has 2239 states and 2984 transitions. [2021-11-23 02:35:28,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.0) internal successors, (133), 19 states have internal predecessors, (133), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 2 states have call predecessors, (17), 5 states have call successors, (17) [2021-11-23 02:35:28,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 2984 transitions. [2021-11-23 02:35:28,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-23 02:35:28,391 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:35:28,391 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:35:28,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-23 02:35:28,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2021-11-23 02:35:28,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-23 02:35:29,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:35:29,008 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:35:29,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:35:29,008 INFO L85 PathProgramCache]: Analyzing trace with hash -351419732, now seen corresponding path program 3 times [2021-11-23 02:35:29,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:35:29,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272766956] [2021-11-23 02:35:29,010 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 02:35:29,010 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:35:29,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:35:29,011 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:35:29,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-23 02:35:30,869 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-23 02:35:30,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 02:35:30,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 02:35:30,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:35:31,334 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-11-23 02:35:31,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:35:32,179 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-23 02:35:32,179 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:35:32,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272766956] [2021-11-23 02:35:32,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1272766956] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:35:32,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1314491517] [2021-11-23 02:35:32,180 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 02:35:32,180 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 02:35:32,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 [2021-11-23 02:35:32,181 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 02:35:32,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2021-11-23 02:35:51,129 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-23 02:35:51,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 02:35:51,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 02:35:51,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:35:51,575 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-11-23 02:35:51,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:35:52,087 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-23 02:35:52,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1314491517] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:35:52,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296573816] [2021-11-23 02:35:52,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 02:35:52,088 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:35:52,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:35:52,089 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:35:52,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c718366-655f-4f11-80c4-0e0e136adde3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process