./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5df375afe9fb68708289d9f3c6788a2547ede1538b0aa584ee561e48e9fb4c63 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:49:42,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:49:42,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:49:43,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:49:43,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:49:43,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:49:43,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:49:43,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:49:43,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:49:43,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:49:43,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:49:43,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:49:43,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:49:43,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:49:43,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:49:43,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:49:43,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:49:43,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:49:43,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:49:43,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:49:43,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:49:43,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:49:43,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:49:43,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:49:43,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:49:43,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:49:43,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:49:43,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:49:43,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:49:43,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:49:43,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:49:43,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:49:43,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:49:43,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:49:43,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:49:43,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:49:43,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:49:43,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:49:43,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:49:43,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:49:43,061 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:49:43,062 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:49:43,087 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:49:43,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:49:43,088 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:49:43,089 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:49:43,090 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:49:43,090 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:49:43,091 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:49:43,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:49:43,091 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:49:43,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:49:43,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:49:43,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:49:43,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:49:43,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:49:43,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:49:43,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:49:43,093 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:49:43,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:49:43,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:49:43,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:49:43,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:49:43,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:49:43,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:49:43,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:49:43,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:49:43,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:49:43,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:49:43,096 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:49:43,097 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:49:43,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:49:43,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5df375afe9fb68708289d9f3c6788a2547ede1538b0aa584ee561e48e9fb4c63 [2022-11-02 20:49:43,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:49:43,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:49:43,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:49:43,409 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:49:43,410 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:49:43,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-11-02 20:49:43,491 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/data/bea96c1ae/c444eee70195425383a5417a214e6bb2/FLAG81e6258d2 [2022-11-02 20:49:44,490 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:49:44,491 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-11-02 20:49:44,537 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/data/bea96c1ae/c444eee70195425383a5417a214e6bb2/FLAG81e6258d2 [2022-11-02 20:49:44,862 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/data/bea96c1ae/c444eee70195425383a5417a214e6bb2 [2022-11-02 20:49:44,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:49:44,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:49:44,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:49:44,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:49:44,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:49:44,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:49:44" (1/1) ... [2022-11-02 20:49:44,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5203ac84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:44, skipping insertion in model container [2022-11-02 20:49:44,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:49:44" (1/1) ... [2022-11-02 20:49:44,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:49:45,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:49:46,694 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_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[209494,209507] [2022-11-02 20:49:48,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:49:48,720 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:49:48,947 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_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[209494,209507] [2022-11-02 20:49:49,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:49:49,527 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:49:49,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:49 WrapperNode [2022-11-02 20:49:49,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:49:49,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:49:49,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:49:49,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:49:49,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:49" (1/1) ... [2022-11-02 20:49:49,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:49" (1/1) ... [2022-11-02 20:49:50,054 INFO L138 Inliner]: procedures = 382, calls = 4296, calls flagged for inlining = 180, calls inlined = 177, statements flattened = 8043 [2022-11-02 20:49:50,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:49:50,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:49:50,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:49:50,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:49:50,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:49" (1/1) ... [2022-11-02 20:49:50,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:49" (1/1) ... [2022-11-02 20:49:50,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:49" (1/1) ... [2022-11-02 20:49:50,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:49" (1/1) ... [2022-11-02 20:49:50,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:49" (1/1) ... [2022-11-02 20:49:50,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:49" (1/1) ... [2022-11-02 20:49:50,578 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:49" (1/1) ... [2022-11-02 20:49:50,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:49" (1/1) ... [2022-11-02 20:49:50,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:49:50,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:49:50,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:49:50,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:49:50,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:49" (1/1) ... [2022-11-02 20:49:50,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:49:50,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:49:50,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:49:50,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:49:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2022-11-02 20:49:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2022-11-02 20:49:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2022-11-02 20:49:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2022-11-02 20:49:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-11-02 20:49:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-11-02 20:49:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-02 20:49:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-02 20:49:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2022-11-02 20:49:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2022-11-02 20:49:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2022-11-02 20:49:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2022-11-02 20:49:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2022-11-02 20:49:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2022-11-02 20:49:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-02 20:49:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 20:49:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_tx [2022-11-02 20:49:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_tx [2022-11-02 20:49:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-02 20:49:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-02 20:49:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-02 20:49:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-02 20:49:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2022-11-02 20:49:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2022-11-02 20:49:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-02 20:49:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-02 20:49:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_5 [2022-11-02 20:49:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_5 [2022-11-02 20:49:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_4 [2022-11-02 20:49:50,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_4 [2022-11-02 20:49:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2022-11-02 20:49:50,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2022-11-02 20:49:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 20:49:50,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 20:49:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2022-11-02 20:49:50,776 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2022-11-02 20:49:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2022-11-02 20:49:50,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2022-11-02 20:49:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2022-11-02 20:49:50,777 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2022-11-02 20:49:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_7 [2022-11-02 20:49:50,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_7 [2022-11-02 20:49:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2022-11-02 20:49:50,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2022-11-02 20:49:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2022-11-02 20:49:50,779 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2022-11-02 20:49:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2022-11-02 20:49:50,779 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2022-11-02 20:49:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2022-11-02 20:49:50,780 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2022-11-02 20:49:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_set_channel [2022-11-02 20:49:50,780 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_set_channel [2022-11-02 20:49:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-02 20:49:50,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-02 20:49:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_writereg [2022-11-02 20:49:50,781 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_writereg [2022-11-02 20:49:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-02 20:49:50,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-02 20:49:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_generic_frame_duration [2022-11-02 20:49:50,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_generic_frame_duration [2022-11-02 20:49:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 20:49:50,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 20:49:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-02 20:49:50,783 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-02 20:49:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-02 20:49:50,783 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-02 20:49:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2022-11-02 20:49:50,783 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2022-11-02 20:49:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 20:49:50,784 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 20:49:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-11-02 20:49:50,784 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-11-02 20:49:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 20:49:50,785 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 20:49:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-11-02 20:49:50,785 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-11-02 20:49:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_int_disable [2022-11-02 20:49:50,785 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_int_disable [2022-11-02 20:49:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-02 20:49:50,786 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-02 20:49:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-02 20:49:50,786 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-02 20:49:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-02 20:49:50,786 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-02 20:49:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2022-11-02 20:49:50,787 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2022-11-02 20:49:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2022-11-02 20:49:50,787 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2022-11-02 20:49:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:49:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2022-11-02 20:49:50,788 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2022-11-02 20:49:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2022-11-02 20:49:50,788 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2022-11-02 20:49:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2022-11-02 20:49:50,788 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2022-11-02 20:49:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:49:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_stop [2022-11-02 20:49:50,789 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_stop [2022-11-02 20:49:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-11-02 20:49:50,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-11-02 20:49:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2022-11-02 20:49:50,790 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2022-11-02 20:49:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2022-11-02 20:49:50,790 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2022-11-02 20:49:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-02 20:49:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2022-11-02 20:49:50,791 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2022-11-02 20:49:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-02 20:49:50,791 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-02 20:49:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-02 20:49:50,791 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-02 20:49:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:49:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:49:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2022-11-02 20:49:50,792 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2022-11-02 20:49:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_init [2022-11-02 20:49:50,792 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_init [2022-11-02 20:49:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2022-11-02 20:49:50,793 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2022-11-02 20:49:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-02 20:49:50,793 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-02 20:49:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___skb_dequeue_14 [2022-11-02 20:49:50,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___skb_dequeue_14 [2022-11-02 20:49:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-02 20:49:50,794 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-02 20:49:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2022-11-02 20:49:50,794 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2022-11-02 20:49:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2022-11-02 20:49:50,795 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2022-11-02 20:49:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-02 20:49:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-02 20:49:50,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-02 20:49:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2022-11-02 20:49:50,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2022-11-02 20:49:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-02 20:49:50,796 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-02 20:49:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-02 20:49:50,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-02 20:49:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2022-11-02 20:49:50,796 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2022-11-02 20:49:50,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 20:49:50,797 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2022-11-02 20:49:50,797 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2022-11-02 20:49:50,797 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2022-11-02 20:49:50,797 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2022-11-02 20:49:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_readreg [2022-11-02 20:49:50,798 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_readreg [2022-11-02 20:49:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:49:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-02 20:49:50,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-02 20:49:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2022-11-02 20:49:50,799 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2022-11-02 20:49:50,799 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2022-11-02 20:49:50,799 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2022-11-02 20:49:50,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-02 20:49:50,799 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-02 20:49:50,799 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-02 20:49:50,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-02 20:49:50,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-11-02 20:49:50,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-11-02 20:49:50,800 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2022-11-02 20:49:50,801 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2022-11-02 20:49:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_rx [2022-11-02 20:49:50,801 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_rx [2022-11-02 20:49:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-11-02 20:49:50,801 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-11-02 20:49:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-02 20:49:50,802 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-02 20:49:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2022-11-02 20:49:50,802 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2022-11-02 20:49:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2022-11-02 20:49:50,802 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2022-11-02 20:49:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2022-11-02 20:49:50,803 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2022-11-02 20:49:50,803 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-02 20:49:50,803 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-02 20:49:50,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:49:50,803 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-02 20:49:50,803 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-02 20:49:50,804 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2022-11-02 20:49:50,804 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2022-11-02 20:49:50,804 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2022-11-02 20:49:50,804 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2022-11-02 20:49:50,804 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2022-11-02 20:49:50,805 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2022-11-02 20:49:50,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 20:49:50,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 20:49:50,805 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2022-11-02 20:49:50,805 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2022-11-02 20:49:50,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-11-02 20:49:50,806 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2022-11-02 20:49:50,806 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2022-11-02 20:49:50,806 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2022-11-02 20:49:50,806 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2022-11-02 20:49:50,806 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_conf_ac_parm [2022-11-02 20:49:50,806 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_conf_ac_parm [2022-11-02 20:49:50,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:49:50,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:49:50,807 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-02 20:49:50,807 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-02 20:49:50,807 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-11-02 20:49:50,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-11-02 20:49:50,808 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2022-11-02 20:49:50,808 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2022-11-02 20:49:50,808 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-02 20:49:50,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-02 20:49:50,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:49:50,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-02 20:49:50,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-02 20:49:50,809 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_RXCB [2022-11-02 20:49:50,809 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_RXCB [2022-11-02 20:49:50,809 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:49:50,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:49:50,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-11-02 20:49:50,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-11-02 20:49:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2022-11-02 20:49:50,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2022-11-02 20:49:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_stop [2022-11-02 20:49:50,810 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_stop [2022-11-02 20:49:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-02 20:49:50,811 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-02 20:49:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_init [2022-11-02 20:49:50,811 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_init [2022-11-02 20:49:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2022-11-02 20:49:50,811 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2022-11-02 20:49:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2022-11-02 20:49:50,812 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2022-11-02 20:49:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-02 20:49:50,812 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-02 20:49:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-02 20:49:50,812 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-02 20:49:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-02 20:49:50,813 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-02 20:49:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2022-11-02 20:49:50,813 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2022-11-02 20:49:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2022-11-02 20:49:50,813 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2022-11-02 20:49:50,814 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam2 [2022-11-02 20:49:50,814 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam2 [2022-11-02 20:49:50,814 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2022-11-02 20:49:50,814 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2022-11-02 20:49:50,814 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2022-11-02 20:49:50,814 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2022-11-02 20:49:50,814 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2022-11-02 20:49:50,815 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2022-11-02 20:49:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:49:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2022-11-02 20:49:50,815 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2022-11-02 20:49:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_three_wire_io [2022-11-02 20:49:50,815 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_three_wire_io [2022-11-02 20:49:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_basic_rates [2022-11-02 20:49:50,816 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_basic_rates [2022-11-02 20:49:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2022-11-02 20:49:50,816 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2022-11-02 20:49:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2022-11-02 20:49:50,816 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2022-11-02 20:49:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-02 20:49:50,817 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-02 20:49:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-11-02 20:49:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:49:50,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:49:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-11-02 20:49:50,818 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-11-02 20:49:51,916 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:49:51,920 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:49:52,344 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-02 20:50:05,261 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:50:05,297 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:50:05,297 INFO L300 CfgBuilder]: Removed 81 assume(true) statements. [2022-11-02 20:50:05,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:50:05 BoogieIcfgContainer [2022-11-02 20:50:05,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:50:05,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:50:05,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:50:05,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:50:05,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:49:44" (1/3) ... [2022-11-02 20:50:05,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22768d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:50:05, skipping insertion in model container [2022-11-02 20:50:05,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:49" (2/3) ... [2022-11-02 20:50:05,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22768d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:50:05, skipping insertion in model container [2022-11-02 20:50:05,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:50:05" (3/3) ... [2022-11-02 20:50:05,314 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-11-02 20:50:05,337 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:50:05,337 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:50:05,483 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:50:05,490 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@698af8f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:50:05,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:50:05,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 3635 states, 2087 states have (on average 1.3143267848586488) internal successors, (2743), 2242 states have internal predecessors, (2743), 1503 states have call successors, (1503), 122 states have call predecessors, (1503), 121 states have return successors, (1489), 1454 states have call predecessors, (1489), 1489 states have call successors, (1489) [2022-11-02 20:50:05,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-02 20:50:05,532 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:50:05,533 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2022-11-02 20:50:05,534 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:50:05,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:05,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1146511857, now seen corresponding path program 1 times [2022-11-02 20:50:05,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:05,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573767864] [2022-11-02 20:50:05,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:05,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:06,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:50:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:06,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:50:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:06,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:50:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:06,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:50:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:06,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 20:50:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:06,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:50:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:06,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-02 20:50:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:06,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-02 20:50:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:07,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 20:50:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:07,029 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-11-02 20:50:07,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:07,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573767864] [2022-11-02 20:50:07,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573767864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:07,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:07,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:50:07,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301475413] [2022-11-02 20:50:07,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:07,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:50:07,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:07,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:50:07,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:50:07,095 INFO L87 Difference]: Start difference. First operand has 3635 states, 2087 states have (on average 1.3143267848586488) internal successors, (2743), 2242 states have internal predecessors, (2743), 1503 states have call successors, (1503), 122 states have call predecessors, (1503), 121 states have return successors, (1489), 1454 states have call predecessors, (1489), 1489 states have call successors, (1489) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-02 20:50:10,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:50:16,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:50:26,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:50:44,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:50:44,901 INFO L93 Difference]: Finished difference Result 10779 states and 17210 transitions. [2022-11-02 20:50:44,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:50:44,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 78 [2022-11-02 20:50:44,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:50:45,017 INFO L225 Difference]: With dead ends: 10779 [2022-11-02 20:50:45,018 INFO L226 Difference]: Without dead ends: 7107 [2022-11-02 20:50:45,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:50:45,067 INFO L413 NwaCegarLoop]: 4717 mSDtfsCounter, 7650 mSDsluCounter, 4963 mSDsCounter, 0 mSdLazyCounter, 7904 mSolverCounterSat, 10834 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8147 SdHoareTripleChecker+Valid, 9680 SdHoareTripleChecker+Invalid, 18740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 10834 IncrementalHoareTripleChecker+Valid, 7904 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:50:45,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8147 Valid, 9680 Invalid, 18740 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [10834 Valid, 7904 Invalid, 2 Unknown, 0 Unchecked, 36.2s Time] [2022-11-02 20:50:45,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7107 states. [2022-11-02 20:50:45,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7107 to 6695. [2022-11-02 20:50:45,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6695 states, 3651 states have (on average 1.301287318542865) internal successors, (4751), 3791 states have internal predecessors, (4751), 2803 states have call successors, (2803), 241 states have call predecessors, (2803), 240 states have return successors, (2802), 2732 states have call predecessors, (2802), 2802 states have call successors, (2802) [2022-11-02 20:50:46,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6695 states to 6695 states and 10356 transitions. [2022-11-02 20:50:46,085 INFO L78 Accepts]: Start accepts. Automaton has 6695 states and 10356 transitions. Word has length 78 [2022-11-02 20:50:46,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:50:46,088 INFO L495 AbstractCegarLoop]: Abstraction has 6695 states and 10356 transitions. [2022-11-02 20:50:46,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-02 20:50:46,090 INFO L276 IsEmpty]: Start isEmpty. Operand 6695 states and 10356 transitions. [2022-11-02 20:50:46,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-02 20:50:46,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:50:46,103 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2022-11-02 20:50:46,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:50:46,104 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:50:46,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:46,105 INFO L85 PathProgramCache]: Analyzing trace with hash 673830489, now seen corresponding path program 1 times [2022-11-02 20:50:46,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:46,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425759900] [2022-11-02 20:50:46,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:46,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:47,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:50:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:47,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:50:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:47,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:50:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:47,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:50:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:47,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 20:50:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:47,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:50:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:47,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-02 20:50:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:47,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-02 20:50:47,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:47,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 20:50:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:47,771 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-11-02 20:50:47,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:47,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425759900] [2022-11-02 20:50:47,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425759900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:47,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:47,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:50:47,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222885633] [2022-11-02 20:50:47,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:47,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:50:47,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:47,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:50:47,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:50:47,791 INFO L87 Difference]: Start difference. First operand 6695 states and 10356 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-02 20:50:52,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:50:59,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:51:03,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:51:27,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:27,858 INFO L93 Difference]: Finished difference Result 20720 states and 32379 transitions. [2022-11-02 20:51:27,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:51:27,861 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (10), 3 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 81 [2022-11-02 20:51:27,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:27,985 INFO L225 Difference]: With dead ends: 20720 [2022-11-02 20:51:27,985 INFO L226 Difference]: Without dead ends: 14042 [2022-11-02 20:51:28,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:51:28,041 INFO L413 NwaCegarLoop]: 4780 mSDtfsCounter, 7375 mSDsluCounter, 9945 mSDsCounter, 0 mSdLazyCounter, 16772 mSolverCounterSat, 10698 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7845 SdHoareTripleChecker+Valid, 14725 SdHoareTripleChecker+Invalid, 27472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 10698 IncrementalHoareTripleChecker+Valid, 16772 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:28,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7845 Valid, 14725 Invalid, 27472 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [10698 Valid, 16772 Invalid, 2 Unknown, 0 Unchecked, 38.4s Time] [2022-11-02 20:51:28,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14042 states. [2022-11-02 20:51:29,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14042 to 13376. [2022-11-02 20:51:29,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13376 states, 7291 states have (on average 1.3021533397339184) internal successors, (9494), 7591 states have internal predecessors, (9494), 5588 states have call successors, (5588), 479 states have call predecessors, (5588), 496 states have return successors, (5750), 5459 states have call predecessors, (5750), 5587 states have call successors, (5750) [2022-11-02 20:51:29,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13376 states to 13376 states and 20832 transitions. [2022-11-02 20:51:29,461 INFO L78 Accepts]: Start accepts. Automaton has 13376 states and 20832 transitions. Word has length 81 [2022-11-02 20:51:29,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:29,464 INFO L495 AbstractCegarLoop]: Abstraction has 13376 states and 20832 transitions. [2022-11-02 20:51:29,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-02 20:51:29,464 INFO L276 IsEmpty]: Start isEmpty. Operand 13376 states and 20832 transitions. [2022-11-02 20:51:29,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-02 20:51:29,491 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:29,492 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:29,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:51:29,492 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:51:29,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:29,493 INFO L85 PathProgramCache]: Analyzing trace with hash -451464136, now seen corresponding path program 1 times [2022-11-02 20:51:29,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:29,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918672547] [2022-11-02 20:51:29,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:29,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:29,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:29,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918672547] [2022-11-02 20:51:29,831 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:51:29,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945977011] [2022-11-02 20:51:29,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:29,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:29,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:29,834 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:29,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:51:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:31,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 4692 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:51:31,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:31,346 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-11-02 20:51:31,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:51:31,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945977011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:31,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:31,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:51:31,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663347720] [2022-11-02 20:51:31,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:31,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:31,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:31,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:31,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:31,350 INFO L87 Difference]: Start difference. First operand 13376 states and 20832 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 20:51:32,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:32,181 INFO L93 Difference]: Finished difference Result 26734 states and 41889 transitions. [2022-11-02 20:51:32,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:32,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 158 [2022-11-02 20:51:32,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:32,298 INFO L225 Difference]: With dead ends: 26734 [2022-11-02 20:51:32,298 INFO L226 Difference]: Without dead ends: 13380 [2022-11-02 20:51:32,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:32,406 INFO L413 NwaCegarLoop]: 5217 mSDtfsCounter, 0 mSDsluCounter, 5213 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10430 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 [2022-11-02 20:51:32,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10430 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:51:32,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13380 states. [2022-11-02 20:51:33,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13380 to 13380. [2022-11-02 20:51:33,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13380 states, 7295 states have (on average 1.3019876627827278) internal successors, (9498), 7595 states have internal predecessors, (9498), 5588 states have call successors, (5588), 479 states have call predecessors, (5588), 496 states have return successors, (5750), 5459 states have call predecessors, (5750), 5587 states have call successors, (5750) [2022-11-02 20:51:33,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13380 states to 13380 states and 20836 transitions. [2022-11-02 20:51:33,804 INFO L78 Accepts]: Start accepts. Automaton has 13380 states and 20836 transitions. Word has length 158 [2022-11-02 20:51:33,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:33,804 INFO L495 AbstractCegarLoop]: Abstraction has 13380 states and 20836 transitions. [2022-11-02 20:51:33,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 20:51:33,806 INFO L276 IsEmpty]: Start isEmpty. Operand 13380 states and 20836 transitions. [2022-11-02 20:51:33,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-02 20:51:33,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:33,824 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:33,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:34,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:34,038 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:51:34,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:34,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1657569113, now seen corresponding path program 1 times [2022-11-02 20:51:34,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:34,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255710039] [2022-11-02 20:51:34,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:34,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:34,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:34,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255710039] [2022-11-02 20:51:34,271 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:51:34,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166749400] [2022-11-02 20:51:34,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:34,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:34,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:34,275 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:34,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:51:35,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:35,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 4692 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:51:35,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:35,762 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-11-02 20:51:35,762 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:51:35,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166749400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:35,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:35,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:51:35,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180992756] [2022-11-02 20:51:35,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:35,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:35,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:35,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:35,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:35,769 INFO L87 Difference]: Start difference. First operand 13380 states and 20836 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 20:51:36,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:36,636 INFO L93 Difference]: Finished difference Result 26742 states and 41649 transitions. [2022-11-02 20:51:36,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:36,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 158 [2022-11-02 20:51:36,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:36,754 INFO L225 Difference]: With dead ends: 26742 [2022-11-02 20:51:36,755 INFO L226 Difference]: Without dead ends: 13384 [2022-11-02 20:51:36,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:36,834 INFO L413 NwaCegarLoop]: 5217 mSDtfsCounter, 0 mSDsluCounter, 5212 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10429 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:36,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10429 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:51:36,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13384 states. [2022-11-02 20:51:38,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13384 to 13384. [2022-11-02 20:51:38,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13384 states, 7299 states have (on average 1.3018221674201946) internal successors, (9502), 7599 states have internal predecessors, (9502), 5588 states have call successors, (5588), 479 states have call predecessors, (5588), 496 states have return successors, (5750), 5459 states have call predecessors, (5750), 5587 states have call successors, (5750) [2022-11-02 20:51:38,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13384 states to 13384 states and 20840 transitions. [2022-11-02 20:51:38,297 INFO L78 Accepts]: Start accepts. Automaton has 13384 states and 20840 transitions. Word has length 158 [2022-11-02 20:51:38,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:38,298 INFO L495 AbstractCegarLoop]: Abstraction has 13384 states and 20840 transitions. [2022-11-02 20:51:38,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 20:51:38,299 INFO L276 IsEmpty]: Start isEmpty. Operand 13384 states and 20840 transitions. [2022-11-02 20:51:38,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-02 20:51:38,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:38,317 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:38,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:38,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:38,542 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:51:38,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:38,543 INFO L85 PathProgramCache]: Analyzing trace with hash 2091298199, now seen corresponding path program 1 times [2022-11-02 20:51:38,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:38,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099897140] [2022-11-02 20:51:38,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:38,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:38,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:38,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099897140] [2022-11-02 20:51:38,878 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:51:38,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592011510] [2022-11-02 20:51:38,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:38,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:38,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:38,880 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:38,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:51:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:40,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 4697 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:51:40,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:40,382 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-11-02 20:51:40,382 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:51:40,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592011510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:40,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:40,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:51:40,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391858078] [2022-11-02 20:51:40,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:40,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:40,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:40,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:40,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:40,385 INFO L87 Difference]: Start difference. First operand 13384 states and 20840 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 20:51:41,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:41,675 INFO L93 Difference]: Finished difference Result 36464 states and 57105 transitions. [2022-11-02 20:51:41,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:41,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 158 [2022-11-02 20:51:41,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:41,833 INFO L225 Difference]: With dead ends: 36464 [2022-11-02 20:51:41,833 INFO L226 Difference]: Without dead ends: 23102 [2022-11-02 20:51:41,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:41,919 INFO L413 NwaCegarLoop]: 6325 mSDtfsCounter, 3876 mSDsluCounter, 5124 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3876 SdHoareTripleChecker+Valid, 11449 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:41,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3876 Valid, 11449 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:51:41,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23102 states. [2022-11-02 20:51:44,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23102 to 23084. [2022-11-02 20:51:44,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23084 states, 12207 states have (on average 1.3040058982550995) internal successors, (15918), 12693 states have internal predecessors, (15918), 10006 states have call successors, (10006), 839 states have call predecessors, (10006), 870 states have return successors, (10275), 9827 states have call predecessors, (10275), 10005 states have call successors, (10275) [2022-11-02 20:51:44,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23084 states to 23084 states and 36199 transitions. [2022-11-02 20:51:44,622 INFO L78 Accepts]: Start accepts. Automaton has 23084 states and 36199 transitions. Word has length 158 [2022-11-02 20:51:44,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:44,623 INFO L495 AbstractCegarLoop]: Abstraction has 23084 states and 36199 transitions. [2022-11-02 20:51:44,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 20:51:44,624 INFO L276 IsEmpty]: Start isEmpty. Operand 23084 states and 36199 transitions. [2022-11-02 20:51:44,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-02 20:51:44,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:44,641 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:44,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:44,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:44,866 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:51:44,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:44,867 INFO L85 PathProgramCache]: Analyzing trace with hash 998043126, now seen corresponding path program 1 times [2022-11-02 20:51:44,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:44,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926939366] [2022-11-02 20:51:44,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:44,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:45,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:45,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926939366] [2022-11-02 20:51:45,108 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:51:45,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458205375] [2022-11-02 20:51:45,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:45,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:45,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:45,111 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:45,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:51:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:46,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 4932 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:51:46,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:47,313 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-11-02 20:51:47,314 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:51:47,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458205375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:47,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:47,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:51:47,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301360234] [2022-11-02 20:51:47,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:47,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:51:47,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:47,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:51:47,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:51:47,317 INFO L87 Difference]: Start difference. First operand 23084 states and 36199 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-02 20:51:57,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:57,280 INFO L93 Difference]: Finished difference Result 69224 states and 108607 transitions. [2022-11-02 20:51:57,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:51:57,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 171 [2022-11-02 20:51:57,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:57,773 INFO L225 Difference]: With dead ends: 69224 [2022-11-02 20:51:57,773 INFO L226 Difference]: Without dead ends: 46162 [2022-11-02 20:51:57,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:51:57,990 INFO L413 NwaCegarLoop]: 7784 mSDtfsCounter, 5143 mSDsluCounter, 9908 mSDsCounter, 0 mSdLazyCounter, 5687 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5147 SdHoareTripleChecker+Valid, 17692 SdHoareTripleChecker+Invalid, 5702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 5687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:57,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5147 Valid, 17692 Invalid, 5702 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 5687 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-11-02 20:51:58,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46162 states. [2022-11-02 20:52:01,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46162 to 46122. [2022-11-02 20:52:01,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46122 states, 24371 states have (on average 1.3045422838619671) internal successors, (31793), 25383 states have internal predecessors, (31793), 20002 states have call successors, (20002), 1677 states have call predecessors, (20002), 1748 states have return successors, (20589), 19613 states have call predecessors, (20589), 20001 states have call successors, (20589) [2022-11-02 20:52:02,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46122 states to 46122 states and 72384 transitions. [2022-11-02 20:52:02,465 INFO L78 Accepts]: Start accepts. Automaton has 46122 states and 72384 transitions. Word has length 171 [2022-11-02 20:52:02,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:52:02,466 INFO L495 AbstractCegarLoop]: Abstraction has 46122 states and 72384 transitions. [2022-11-02 20:52:02,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-02 20:52:02,467 INFO L276 IsEmpty]: Start isEmpty. Operand 46122 states and 72384 transitions. [2022-11-02 20:52:02,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-02 20:52:02,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:52:02,497 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:52:02,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:52:02,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-02 20:52:02,718 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:52:02,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:02,719 INFO L85 PathProgramCache]: Analyzing trace with hash -190192694, now seen corresponding path program 1 times [2022-11-02 20:52:02,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:02,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439975377] [2022-11-02 20:52:02,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:02,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:02,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:02,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439975377] [2022-11-02 20:52:02,997 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:52:02,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097259489] [2022-11-02 20:52:02,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:02,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:52:02,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:52:02,999 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:52:03,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 20:52:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:04,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 4934 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:52:04,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:52:05,158 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-11-02 20:52:05,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:52:05,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097259489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:05,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:05,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:52:05,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942633508] [2022-11-02 20:52:05,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:05,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:52:05,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:05,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:52:05,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:52:05,163 INFO L87 Difference]: Start difference. First operand 46122 states and 72384 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-02 20:52:17,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:52:17,816 INFO L93 Difference]: Finished difference Result 138338 states and 217218 transitions. [2022-11-02 20:52:17,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:52:17,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 172 [2022-11-02 20:52:17,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:52:18,858 INFO L225 Difference]: With dead ends: 138338 [2022-11-02 20:52:18,859 INFO L226 Difference]: Without dead ends: 92238 [2022-11-02 20:52:19,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:52:19,122 INFO L413 NwaCegarLoop]: 6652 mSDtfsCounter, 5114 mSDsluCounter, 12859 mSDsCounter, 0 mSdLazyCounter, 5690 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5118 SdHoareTripleChecker+Valid, 19511 SdHoareTripleChecker+Invalid, 5706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 5690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:52:19,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5118 Valid, 19511 Invalid, 5706 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 5690 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-11-02 20:52:19,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92238 states. [2022-11-02 20:52:25,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92238 to 92230. [2022-11-02 20:52:25,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92230 states, 48731 states have (on average 1.3046110278877923) internal successors, (63575), 50763 states have internal predecessors, (63575), 39994 states have call successors, (39994), 3353 states have call predecessors, (39994), 3504 states have return successors, (41257), 39217 states have call predecessors, (41257), 39993 states have call successors, (41257) [2022-11-02 20:52:26,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92230 states to 92230 states and 144826 transitions. [2022-11-02 20:52:26,902 INFO L78 Accepts]: Start accepts. Automaton has 92230 states and 144826 transitions. Word has length 172 [2022-11-02 20:52:26,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:52:26,903 INFO L495 AbstractCegarLoop]: Abstraction has 92230 states and 144826 transitions. [2022-11-02 20:52:26,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-02 20:52:26,904 INFO L276 IsEmpty]: Start isEmpty. Operand 92230 states and 144826 transitions. [2022-11-02 20:52:26,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-02 20:52:26,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:52:26,929 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:52:26,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:52:27,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-02 20:52:27,142 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:52:27,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:27,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1116535729, now seen corresponding path program 1 times [2022-11-02 20:52:27,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:27,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375845506] [2022-11-02 20:52:27,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:27,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:27,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:27,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375845506] [2022-11-02 20:52:27,701 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:52:27,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157581955] [2022-11-02 20:52:27,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:27,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:52:27,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:52:27,704 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:52:27,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee4213e-823b-4b84-a6ad-8c0649ac2ce3/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 20:52:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:29,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 4938 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:52:29,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:52:29,606 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-11-02 20:52:29,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:52:29,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157581955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:29,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:29,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:52:29,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648991656] [2022-11-02 20:52:29,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:29,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:52:29,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:29,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:52:29,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:52:29,608 INFO L87 Difference]: Start difference. First operand 92230 states and 144826 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-02 20:52:48,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:52:48,078 INFO L93 Difference]: Finished difference Result 276662 states and 434704 transitions. [2022-11-02 20:52:48,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:52:48,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 174 [2022-11-02 20:52:48,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:52:49,628 INFO L225 Difference]: With dead ends: 276662 [2022-11-02 20:52:49,628 INFO L226 Difference]: Without dead ends: 184454 [2022-11-02 20:52:50,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:52:50,433 INFO L413 NwaCegarLoop]: 6602 mSDtfsCounter, 5144 mSDsluCounter, 9920 mSDsCounter, 0 mSdLazyCounter, 5681 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5148 SdHoareTripleChecker+Valid, 16522 SdHoareTripleChecker+Invalid, 5697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 5681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:52:50,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5148 Valid, 16522 Invalid, 5697 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 5681 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-02 20:52:50,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184454 states.