./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a1d4a-bbf7-4363-83ae-e7dd7bef5357/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a1d4a-bbf7-4363-83ae-e7dd7bef5357/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a1d4a-bbf7-4363-83ae-e7dd7bef5357/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a1d4a-bbf7-4363-83ae-e7dd7bef5357/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a1d4a-bbf7-4363-83ae-e7dd7bef5357/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a1d4a-bbf7-4363-83ae-e7dd7bef5357/bin/uautomizer-J5u9QxTXDZ --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 fa270183f30c4108ea2b2e80e3a005f959ee3ae47a4a31957eaa79c7226d5c4e --- 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-dbf71c6-m [2022-10-17 11:06:35,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:06:35,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:06:35,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:06:35,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:06:35,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:06:35,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:06:35,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:06:35,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:06:35,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:06:35,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:06:35,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:06:35,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:06:35,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:06:35,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:06:35,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:06:35,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:06:35,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:06:35,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:06:35,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:06:35,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:06:36,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:06:36,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:06:36,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:06:36,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:06:36,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:06:36,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:06:36,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:06:36,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:06:36,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:06:36,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:06:36,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:06:36,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:06:36,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:06:36,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:06:36,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:06:36,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:06:36,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:06:36,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:06:36,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:06:36,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:06:36,031 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a1d4a-bbf7-4363-83ae-e7dd7bef5357/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 11:06:36,063 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:06:36,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:06:36,064 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:06:36,064 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:06:36,065 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:06:36,065 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:06:36,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:06:36,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:06:36,074 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:06:36,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:06:36,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:06:36,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:06:36,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 11:06:36,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:06:36,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 11:06:36,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:06:36,077 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:06:36,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 11:06:36,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:06:36,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:06:36,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:06:36,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:06:36,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:06:36,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:06:36,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 11:06:36,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:06:36,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 11:06:36,083 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 11:06:36,083 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 11:06:36,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 11:06:36,084 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_504a1d4a-bbf7-4363-83ae-e7dd7bef5357/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a1d4a-bbf7-4363-83ae-e7dd7bef5357/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa270183f30c4108ea2b2e80e3a005f959ee3ae47a4a31957eaa79c7226d5c4e [2022-10-17 11:06:36,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:06:36,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:06:36,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:06:36,530 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:06:36,531 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:06:36,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a1d4a-bbf7-4363-83ae-e7dd7bef5357/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko-entry_point.cil.out.i [2022-10-17 11:06:36,637 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a1d4a-bbf7-4363-83ae-e7dd7bef5357/bin/uautomizer-J5u9QxTXDZ/data/0a197cf08/9555fb04a5c74a9c9810c4df1133ac1a/FLAGf1401a559 [2022-10-17 11:06:37,733 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:06:37,734 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a1d4a-bbf7-4363-83ae-e7dd7bef5357/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko-entry_point.cil.out.i [2022-10-17 11:06:37,814 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a1d4a-bbf7-4363-83ae-e7dd7bef5357/bin/uautomizer-J5u9QxTXDZ/data/0a197cf08/9555fb04a5c74a9c9810c4df1133ac1a/FLAGf1401a559 [2022-10-17 11:06:38,061 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a1d4a-bbf7-4363-83ae-e7dd7bef5357/bin/uautomizer-J5u9QxTXDZ/data/0a197cf08/9555fb04a5c74a9c9810c4df1133ac1a [2022-10-17 11:06:38,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:06:38,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:06:38,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:06:38,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:06:38,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:06:38,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:06:38" (1/1) ... [2022-10-17 11:06:38,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eeaa728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:38, skipping insertion in model container [2022-10-17 11:06:38,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:06:38" (1/1) ... [2022-10-17 11:06:38,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:06:38,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:06:40,369 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_504a1d4a-bbf7-4363-83ae-e7dd7bef5357/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko-entry_point.cil.out.i[277190,277203] [2022-10-17 11:06:40,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:06:40,674 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:06:41,217 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_504a1d4a-bbf7-4363-83ae-e7dd7bef5357/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko-entry_point.cil.out.i[277190,277203] [2022-10-17 11:06:41,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:06:41,365 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:06:41,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:41 WrapperNode [2022-10-17 11:06:41,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:06:41,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:06:41,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:06:41,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:06:41,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:41" (1/1) ... [2022-10-17 11:06:41,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:41" (1/1) ... [2022-10-17 11:06:41,733 INFO L138 Inliner]: procedures = 225, calls = 1809, calls flagged for inlining = 92, calls inlined = 81, statements flattened = 3779 [2022-10-17 11:06:41,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:06:41,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:06:41,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:06:41,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:06:41,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:41" (1/1) ... [2022-10-17 11:06:41,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:41" (1/1) ... [2022-10-17 11:06:41,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:41" (1/1) ... [2022-10-17 11:06:41,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:41" (1/1) ... [2022-10-17 11:06:41,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:41" (1/1) ... [2022-10-17 11:06:41,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:41" (1/1) ... [2022-10-17 11:06:42,065 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:41" (1/1) ... [2022-10-17 11:06:42,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:41" (1/1) ... [2022-10-17 11:06:42,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:06:42,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:06:42,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:06:42,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:06:42,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:41" (1/1) ... [2022-10-17 11:06:42,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:06:42,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a1d4a-bbf7-4363-83ae-e7dd7bef5357/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:06:42,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a1d4a-bbf7-4363-83ae-e7dd7bef5357/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:06:42,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a1d4a-bbf7-4363-83ae-e7dd7bef5357/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:06:42,253 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-10-17 11:06:42,253 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-10-17 11:06:42,253 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-10-17 11:06:42,253 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-10-17 11:06:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 11:06:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 11:06:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 11:06:42,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 11:06:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 11:06:42,255 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 11:06:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_semusb_of_ttusb [2022-10-17 11:06:42,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_semusb_of_ttusb [2022-10-17 11:06:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-10-17 11:06:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-10-17 11:06:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 11:06:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 11:06:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 11:06:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 11:06:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 11:06:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 11:06:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2022-10-17 11:06:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2022-10-17 11:06:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 11:06:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 11:06:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 11:06:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 11:06:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2022-10-17 11:06:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2022-10-17 11:06:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-17 11:06:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-17 11:06:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 11:06:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-17 11:06:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 11:06:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure tda1004x_writereg [2022-10-17 11:06:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure tda1004x_writereg [2022-10-17 11:06:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-10-17 11:06:42,261 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-10-17 11:06:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 11:06:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-10-17 11:06:42,262 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-10-17 11:06:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 11:06:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_semi2c_of_ttusb [2022-10-17 11:06:42,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_semi2c_of_ttusb [2022-10-17 11:06:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-10-17 11:06:42,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-10-17 11:06:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-10-17 11:06:42,263 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-10-17 11:06:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 11:06:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-10-17 11:06:42,264 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-10-17 11:06:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-10-17 11:06:42,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-10-17 11:06:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 11:06:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure master_xfer [2022-10-17 11:06:42,265 INFO L138 BoogieDeclarations]: Found implementation of procedure master_xfer [2022-10-17 11:06:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-10-17 11:06:42,265 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-10-17 11:06:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 11:06:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_frontend_detach [2022-10-17 11:06:42,266 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_frontend_detach [2022-10-17 11:06:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 11:06:42,267 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 11:06:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2022-10-17 11:06:42,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2022-10-17 11:06:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-17 11:06:42,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-17 11:06:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_stop_iso_xfer [2022-10-17 11:06:42,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_stop_iso_xfer [2022-10-17 11:06:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 11:06:42,268 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 11:06:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 11:06:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-10-17 11:06:42,269 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-10-17 11:06:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-10-17 11:06:42,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-10-17 11:06:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_cmd [2022-10-17 11:06:42,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_cmd [2022-10-17 11:06:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 11:06:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-10-17 11:06:42,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-10-17 11:06:42,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:06:42,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-17 11:06:42,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-17 11:06:42,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 11:06:42,272 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_get [2022-10-17 11:06:42,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_get [2022-10-17 11:06:42,272 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2022-10-17 11:06:42,272 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2022-10-17 11:06:42,273 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-10-17 11:06:42,273 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-10-17 11:06:42,273 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_adapter [2022-10-17 11:06:42,273 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_adapter [2022-10-17 11:06:42,274 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_result [2022-10-17 11:06:42,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_result [2022-10-17 11:06:42,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_semi2c_of_ttusb [2022-10-17 11:06:42,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_semi2c_of_ttusb [2022-10-17 11:06:42,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 11:06:42,275 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_free_iso_urbs [2022-10-17 11:06:42,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_free_iso_urbs [2022-10-17 11:06:42,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:06:42,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:06:43,146 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:06:43,153 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:06:44,185 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 11:06:54,242 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:06:54,261 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:06:54,261 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 11:06:54,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:06:54 BoogieIcfgContainer [2022-10-17 11:06:54,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:06:54,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:06:54,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:06:54,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:06:54,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:06:38" (1/3) ... [2022-10-17 11:06:54,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b414744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:06:54, skipping insertion in model container [2022-10-17 11:06:54,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:41" (2/3) ... [2022-10-17 11:06:54,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b414744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:06:54, skipping insertion in model container [2022-10-17 11:06:54,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:06:54" (3/3) ... [2022-10-17 11:06:54,277 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko-entry_point.cil.out.i [2022-10-17 11:06:54,301 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:06:54,301 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 11:06:54,390 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:06:54,399 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;@6b8735d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:06:54,399 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 11:06:54,409 INFO L276 IsEmpty]: Start isEmpty. Operand has 838 states, 620 states have (on average 1.4016129032258065) internal successors, (869), 648 states have internal predecessors, (869), 175 states have call successors, (175), 42 states have call predecessors, (175), 41 states have return successors, (169), 169 states have call predecessors, (169), 169 states have call successors, (169) [2022-10-17 11:06:54,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-10-17 11:06:54,430 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:06:54,431 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:06:54,432 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:06:54,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:06:54,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1865142948, now seen corresponding path program 1 times [2022-10-17 11:06:54,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:06:54,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522261326] [2022-10-17 11:06:54,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:06:54,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:06:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 11:06:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:06:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 11:06:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:06:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-17 11:06:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:06:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 11:06:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:06:55,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 11:06:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:06:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-17 11:06:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:06:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-17 11:06:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:55,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:56,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-17 11:06:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:56,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:56,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-17 11:06:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:56,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:56,213 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2022-10-17 11:06:56,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:06:56,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522261326] [2022-10-17 11:06:56,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522261326] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:06:56,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:06:56,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 11:06:56,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357724231] [2022-10-17 11:06:56,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:06:56,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 11:06:56,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:06:56,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 11:06:56,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:06:56,284 INFO L87 Difference]: Start difference. First operand has 838 states, 620 states have (on average 1.4016129032258065) internal successors, (869), 648 states have internal predecessors, (869), 175 states have call successors, (175), 42 states have call predecessors, (175), 41 states have return successors, (169), 169 states have call predecessors, (169), 169 states have call successors, (169) Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-17 11:07:02,323 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 [] [2022-10-17 11:07:04,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 11:07:06,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []