./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5093359d-87c0-4586-a043-bf54bf871a33/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5093359d-87c0-4586-a043-bf54bf871a33/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_5093359d-87c0-4586-a043-bf54bf871a33/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5093359d-87c0-4586-a043-bf54bf871a33/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5093359d-87c0-4586-a043-bf54bf871a33/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_5093359d-87c0-4586-a043-bf54bf871a33/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 a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 --- 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 20:27:43,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:27:43,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:27:43,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:27:43,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:27:43,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:27:43,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:27:43,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:27:43,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:27:43,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:27:43,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:27:43,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:27:43,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:27:43,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:27:43,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:27:43,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:27:43,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:27:43,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:27:43,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:27:43,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:27:43,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:27:43,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:27:43,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:27:43,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:27:43,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:27:43,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:27:43,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:27:43,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:27:43,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:27:43,626 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:27:43,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:27:43,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:27:43,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:27:43,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:27:43,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:27:43,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:27:43,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:27:43,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:27:43,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:27:43,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:27:43,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:27:43,650 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5093359d-87c0-4586-a043-bf54bf871a33/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:27:43,696 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:27:43,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:27:43,702 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:27:43,703 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:27:43,705 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:27:43,705 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:27:43,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:27:43,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:27:43,707 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:27:43,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:27:43,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:27:43,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:27:43,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:27:43,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:27:43,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:27:43,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:27:43,711 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:27:43,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:27:43,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:27:43,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:27:43,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:27:43,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:27:43,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:27:43,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:27:43,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:27:43,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:27:43,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:27:43,716 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:27:43,716 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:27:43,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:27:43,717 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_5093359d-87c0-4586-a043-bf54bf871a33/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5093359d-87c0-4586-a043-bf54bf871a33/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 [2022-11-02 20:27:44,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:27:44,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:27:44,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:27:44,250 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:27:44,252 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:27:44,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5093359d-87c0-4586-a043-bf54bf871a33/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2022-11-02 20:27:44,367 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5093359d-87c0-4586-a043-bf54bf871a33/bin/uautomizer-Dbtcem3rbc/data/d95525d0f/09ac7ef5b8c6459a9ce455b97c0bf997/FLAG08a82d153 [2022-11-02 20:27:45,619 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:27:45,621 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5093359d-87c0-4586-a043-bf54bf871a33/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2022-11-02 20:27:45,724 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5093359d-87c0-4586-a043-bf54bf871a33/bin/uautomizer-Dbtcem3rbc/data/d95525d0f/09ac7ef5b8c6459a9ce455b97c0bf997/FLAG08a82d153 [2022-11-02 20:27:45,957 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5093359d-87c0-4586-a043-bf54bf871a33/bin/uautomizer-Dbtcem3rbc/data/d95525d0f/09ac7ef5b8c6459a9ce455b97c0bf997 [2022-11-02 20:27:45,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:27:45,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:27:45,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:27:45,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:27:45,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:27:45,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:27:45" (1/1) ... [2022-11-02 20:27:45,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1151be1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:45, skipping insertion in model container [2022-11-02 20:27:45,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:27:45" (1/1) ... [2022-11-02 20:27:45,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:27:46,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:27:47,729 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_5093359d-87c0-4586-a043-bf54bf871a33/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2022-11-02 20:27:47,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:27:48,000 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:27:48,461 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_5093359d-87c0-4586-a043-bf54bf871a33/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2022-11-02 20:27:48,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:27:48,872 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:27:48,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:48 WrapperNode [2022-11-02 20:27:48,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:27:48,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:27:48,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:27:48,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:27:48,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:48" (1/1) ... [2022-11-02 20:27:49,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:48" (1/1) ... [2022-11-02 20:27:49,356 INFO L138 Inliner]: procedures = 184, calls = 1937, calls flagged for inlining = 74, calls inlined = 66, statements flattened = 5079 [2022-11-02 20:27:49,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:27:49,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:27:49,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:27:49,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:27:49,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:48" (1/1) ... [2022-11-02 20:27:49,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:48" (1/1) ... [2022-11-02 20:27:49,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:48" (1/1) ... [2022-11-02 20:27:49,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:48" (1/1) ... [2022-11-02 20:27:49,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:48" (1/1) ... [2022-11-02 20:27:49,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:48" (1/1) ... [2022-11-02 20:27:49,843 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:48" (1/1) ... [2022-11-02 20:27:49,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:48" (1/1) ... [2022-11-02 20:27:49,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:27:49,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:27:49,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:27:49,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:27:49,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:48" (1/1) ... [2022-11-02 20:27:49,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:27:49,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5093359d-87c0-4586-a043-bf54bf871a33/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:27:49,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5093359d-87c0-4586-a043-bf54bf871a33/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:27:49,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5093359d-87c0-4586-a043-bf54bf871a33/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:27:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan [2022-11-02 20:27:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan [2022-11-02 20:27:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-02 20:27:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-02 20:27:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_word_swapped [2022-11-02 20:27:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_word_swapped [2022-11-02 20:27:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_asb100_data [2022-11-02 20:27:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_asb100_data [2022-11-02 20:27:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_max [2022-11-02 20:27:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_max [2022-11-02 20:27:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2022-11-02 20:27:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2022-11-02 20:27:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_max [2022-11-02 20:27:50,018 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_max [2022-11-02 20:27:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:27:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_hyst [2022-11-02 20:27:50,018 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_hyst [2022-11-02 20:27:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_TO_REG [2022-11-02 20:27:50,019 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_TO_REG [2022-11-02 20:27:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-02 20:27:50,019 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-02 20:27:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2022-11-02 20:27:50,020 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2022-11-02 20:27:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_hyst [2022-11-02 20:27:50,020 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_hyst [2022-11-02 20:27:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf_temp_from_reg [2022-11-02 20:27:50,021 INFO L138 BoogieDeclarations]: Found implementation of procedure sprintf_temp_from_reg [2022-11-02 20:27:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 20:27:50,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 20:27:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_update_device [2022-11-02 20:27:50,021 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_update_device [2022-11-02 20:27:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_word_swapped [2022-11-02 20:27:50,022 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_word_swapped [2022-11-02 20:27:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_asb100_data [2022-11-02 20:27:50,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_asb100_data [2022-11-02 20:27:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_div [2022-11-02 20:27:50,022 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_div [2022-11-02 20:27:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_div [2022-11-02 20:27:50,023 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_div [2022-11-02 20:27:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_TO_REG [2022-11-02 20:27:50,023 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_TO_REG [2022-11-02 20:27:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:27:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-02 20:27:50,024 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-02 20:27:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 20:27:50,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 20:27:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp [2022-11-02 20:27:50,025 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp [2022-11-02 20:27:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_max [2022-11-02 20:27:50,025 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_max [2022-11-02 20:27:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 20:27:50,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 20:27:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure IN_TO_REG [2022-11-02 20:27:50,026 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_TO_REG [2022-11-02 20:27:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_min [2022-11-02 20:27:50,027 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_min [2022-11-02 20:27:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_write_value [2022-11-02 20:27:50,029 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_write_value [2022-11-02 20:27:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure TEMP_TO_REG [2022-11-02 20:27:50,030 INFO L138 BoogieDeclarations]: Found implementation of procedure TEMP_TO_REG [2022-11-02 20:27:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:27:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-02 20:27:50,030 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-02 20:27:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_min [2022-11-02 20:27:50,031 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_min [2022-11-02 20:27:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:27:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:27:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_min [2022-11-02 20:27:50,033 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_min [2022-11-02 20:27:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_min [2022-11-02 20:27:50,033 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_min [2022-11-02 20:27:50,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:27:50,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_asb100_data [2022-11-02 20:27:50,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_asb100_data [2022-11-02 20:27:50,035 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max [2022-11-02 20:27:50,035 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max [2022-11-02 20:27:50,035 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2022-11-02 20:27:50,035 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2022-11-02 20:27:50,036 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2022-11-02 20:27:50,036 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2022-11-02 20:27:50,036 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2022-11-02 20:27:50,036 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2022-11-02 20:27:50,036 INFO L130 BoogieDeclarations]: Found specification of procedure show_in [2022-11-02 20:27:50,036 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in [2022-11-02 20:27:50,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:27:50,037 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2022-11-02 20:27:50,037 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2022-11-02 20:27:50,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:27:50,038 INFO L130 BoogieDeclarations]: Found specification of procedure IN_FROM_REG [2022-11-02 20:27:50,038 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_FROM_REG [2022-11-02 20:27:50,039 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-11-02 20:27:50,039 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-11-02 20:27:50,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:27:50,039 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2022-11-02 20:27:50,039 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2022-11-02 20:27:50,039 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_detect [2022-11-02 20:27:50,041 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_detect [2022-11-02 20:27:50,041 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_read_value [2022-11-02 20:27:50,041 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_read_value [2022-11-02 20:27:50,041 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-02 20:27:50,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-02 20:27:50,042 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_FROM_REG [2022-11-02 20:27:50,042 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_FROM_REG [2022-11-02 20:27:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-02 20:27:50,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-02 20:27:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_new_dummy [2022-11-02 20:27:50,043 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_new_dummy [2022-11-02 20:27:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:27:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2022-11-02 20:27:50,044 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2022-11-02 20:27:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:27:50,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:27:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-02 20:27:50,045 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-02 20:27:51,141 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:27:51,149 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:27:58,602 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:27:58,640 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:27:58,641 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:27:58,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:27:58 BoogieIcfgContainer [2022-11-02 20:27:58,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:27:58,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:27:58,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:27:58,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:27:58,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:27:45" (1/3) ... [2022-11-02 20:27:58,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f375c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:27:58, skipping insertion in model container [2022-11-02 20:27:58,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:48" (2/3) ... [2022-11-02 20:27:58,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f375c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:27:58, skipping insertion in model container [2022-11-02 20:27:58,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:27:58" (3/3) ... [2022-11-02 20:27:58,677 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2022-11-02 20:27:58,707 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:27:58,707 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:27:58,827 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:27:58,836 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;@234216d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:27:58,836 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:27:58,848 INFO L276 IsEmpty]: Start isEmpty. Operand has 1289 states, 959 states have (on average 1.4817518248175183) internal successors, (1421), 973 states have internal predecessors, (1421), 277 states have call successors, (277), 51 states have call predecessors, (277), 51 states have return successors, (277), 275 states have call predecessors, (277), 277 states have call successors, (277) [2022-11-02 20:27:58,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-02 20:27:58,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:27:58,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:58,871 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:27:58,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:58,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1333303287, now seen corresponding path program 1 times [2022-11-02 20:27:58,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:58,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089064016] [2022-11-02 20:27:58,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:58,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:00,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:28:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:00,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:00,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:00,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:28:00,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:28:00,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089064016] [2022-11-02 20:28:00,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089064016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:28:00,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:28:00,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:28:00,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966282705] [2022-11-02 20:28:00,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:28:00,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:28:00,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:28:00,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:28:00,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:28:00,334 INFO L87 Difference]: Start difference. First operand has 1289 states, 959 states have (on average 1.4817518248175183) internal successors, (1421), 973 states have internal predecessors, (1421), 277 states have call successors, (277), 51 states have call predecessors, (277), 51 states have return successors, (277), 275 states have call predecessors, (277), 277 states have call successors, (277) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:28:04,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:28:04,652 INFO L93 Difference]: Finished difference Result 3995 states and 6578 transitions. [2022-11-02 20:28:04,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:28:04,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2022-11-02 20:28:04,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:28:04,767 INFO L225 Difference]: With dead ends: 3995 [2022-11-02 20:28:04,767 INFO L226 Difference]: Without dead ends: 2701 [2022-11-02 20:28:04,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:28:04,800 INFO L413 NwaCegarLoop]: 2420 mSDtfsCounter, 2145 mSDsluCounter, 3254 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 658 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2306 SdHoareTripleChecker+Valid, 5674 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 658 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:28:04,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2306 Valid, 5674 Invalid, 1427 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [658 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-02 20:28:04,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2022-11-02 20:28:05,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 2534. [2022-11-02 20:28:05,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2534 states, 1890 states have (on average 1.4804232804232804) internal successors, (2798), 1906 states have internal predecessors, (2798), 543 states have call successors, (543), 101 states have call predecessors, (543), 100 states have return successors, (534), 530 states have call predecessors, (534), 534 states have call successors, (534) [2022-11-02 20:28:05,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2534 states to 2534 states and 3875 transitions. [2022-11-02 20:28:05,211 INFO L78 Accepts]: Start accepts. Automaton has 2534 states and 3875 transitions. Word has length 35 [2022-11-02 20:28:05,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:28:05,212 INFO L495 AbstractCegarLoop]: Abstraction has 2534 states and 3875 transitions. [2022-11-02 20:28:05,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:28:05,213 INFO L276 IsEmpty]: Start isEmpty. Operand 2534 states and 3875 transitions. [2022-11-02 20:28:05,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-02 20:28:05,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:28:05,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:28:05,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:28:05,218 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:28:05,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:28:05,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1767320045, now seen corresponding path program 1 times [2022-11-02 20:28:05,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:28:05,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959640250] [2022-11-02 20:28:05,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:28:05,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:28:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:05,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:28:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:05,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:05,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:05,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:28:05,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:28:05,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959640250] [2022-11-02 20:28:05,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959640250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:28:05,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:28:05,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:28:05,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469949913] [2022-11-02 20:28:05,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:28:05,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:28:05,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:28:05,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:28:05,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:28:05,999 INFO L87 Difference]: Start difference. First operand 2534 states and 3875 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:28:09,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:28:09,467 INFO L93 Difference]: Finished difference Result 7842 states and 12179 transitions. [2022-11-02 20:28:09,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:28:09,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2022-11-02 20:28:09,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:28:09,515 INFO L225 Difference]: With dead ends: 7842 [2022-11-02 20:28:09,516 INFO L226 Difference]: Without dead ends: 5311 [2022-11-02 20:28:09,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:28:09,537 INFO L413 NwaCegarLoop]: 2343 mSDtfsCounter, 2196 mSDsluCounter, 3349 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 646 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2363 SdHoareTripleChecker+Valid, 5692 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 646 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:28:09,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2363 Valid, 5692 Invalid, 1405 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [646 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-02 20:28:09,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5311 states. [2022-11-02 20:28:09,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5311 to 4996. [2022-11-02 20:28:09,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4996 states, 3734 states have (on average 1.4809855382967327) internal successors, (5530), 3758 states have internal predecessors, (5530), 1061 states have call successors, (1061), 201 states have call predecessors, (1061), 200 states have return successors, (1052), 1044 states have call predecessors, (1052), 1052 states have call successors, (1052) [2022-11-02 20:28:09,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4996 states to 4996 states and 7643 transitions. [2022-11-02 20:28:09,946 INFO L78 Accepts]: Start accepts. Automaton has 4996 states and 7643 transitions. Word has length 39 [2022-11-02 20:28:09,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:28:09,947 INFO L495 AbstractCegarLoop]: Abstraction has 4996 states and 7643 transitions. [2022-11-02 20:28:09,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:28:09,948 INFO L276 IsEmpty]: Start isEmpty. Operand 4996 states and 7643 transitions. [2022-11-02 20:28:09,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-02 20:28:09,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:28:09,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:28:09,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:28:09,956 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:28:09,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:28:09,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1794039467, now seen corresponding path program 1 times [2022-11-02 20:28:09,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:28:09,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889888280] [2022-11-02 20:28:09,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:28:09,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:28:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:10,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-02 20:28:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:10,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:10,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:10,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:28:10,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:28:10,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889888280] [2022-11-02 20:28:10,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889888280] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:28:10,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:28:10,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:28:10,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261943656] [2022-11-02 20:28:10,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:28:10,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:28:10,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:28:10,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:28:10,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:28:10,651 INFO L87 Difference]: Start difference. First operand 4996 states and 7643 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:28:14,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:28:14,728 INFO L93 Difference]: Finished difference Result 15534 states and 24135 transitions. [2022-11-02 20:28:14,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:28:14,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2022-11-02 20:28:14,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:28:14,821 INFO L225 Difference]: With dead ends: 15534 [2022-11-02 20:28:14,821 INFO L226 Difference]: Without dead ends: 10541 [2022-11-02 20:28:14,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:28:14,871 INFO L413 NwaCegarLoop]: 2375 mSDtfsCounter, 2189 mSDsluCounter, 3284 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 665 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2358 SdHoareTripleChecker+Valid, 5659 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 665 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:28:14,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2358 Valid, 5659 Invalid, 1434 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [665 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-02 20:28:14,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10541 states. [2022-11-02 20:28:15,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10541 to 9930. [2022-11-02 20:28:15,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9930 states, 7424 states have (on average 1.4800646551724137) internal successors, (10988), 7464 states have internal predecessors, (10988), 2105 states have call successors, (2105), 401 states have call predecessors, (2105), 400 states have return successors, (2096), 2080 states have call predecessors, (2096), 2096 states have call successors, (2096) [2022-11-02 20:28:15,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9930 states to 9930 states and 15189 transitions. [2022-11-02 20:28:15,662 INFO L78 Accepts]: Start accepts. Automaton has 9930 states and 15189 transitions. Word has length 38 [2022-11-02 20:28:15,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:28:15,664 INFO L495 AbstractCegarLoop]: Abstraction has 9930 states and 15189 transitions. [2022-11-02 20:28:15,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:28:15,666 INFO L276 IsEmpty]: Start isEmpty. Operand 9930 states and 15189 transitions. [2022-11-02 20:28:15,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 20:28:15,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:28:15,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:28:15,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:28:15,671 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:28:15,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:28:15,671 INFO L85 PathProgramCache]: Analyzing trace with hash -773562485, now seen corresponding path program 1 times [2022-11-02 20:28:15,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:28:15,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313436917] [2022-11-02 20:28:15,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:28:15,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:28:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:16,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-02 20:28:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:16,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:16,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:16,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:28:16,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:28:16,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313436917] [2022-11-02 20:28:16,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313436917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:28:16,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:28:16,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:28:16,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000726986] [2022-11-02 20:28:16,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:28:16,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:28:16,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:28:16,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:28:16,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:28:16,239 INFO L87 Difference]: Start difference. First operand 9930 states and 15189 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:28:20,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:28:20,063 INFO L93 Difference]: Finished difference Result 30888 states and 47985 transitions. [2022-11-02 20:28:20,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:28:20,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2022-11-02 20:28:20,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:28:20,230 INFO L225 Difference]: With dead ends: 30888 [2022-11-02 20:28:20,230 INFO L226 Difference]: Without dead ends: 20961 [2022-11-02 20:28:20,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:28:20,304 INFO L413 NwaCegarLoop]: 2500 mSDtfsCounter, 2113 mSDsluCounter, 3238 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 649 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2272 SdHoareTripleChecker+Valid, 5738 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 649 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:28:20,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2272 Valid, 5738 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [649 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-02 20:28:20,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20961 states. [2022-11-02 20:28:21,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20961 to 19758. [2022-11-02 20:28:21,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19758 states, 14772 states have (on average 1.479014351475765) internal successors, (21848), 14844 states have internal predecessors, (21848), 4185 states have call successors, (4185), 801 states have call predecessors, (4185), 800 states have return successors, (4176), 4144 states have call predecessors, (4176), 4176 states have call successors, (4176) [2022-11-02 20:28:21,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19758 states to 19758 states and 30209 transitions. [2022-11-02 20:28:21,914 INFO L78 Accepts]: Start accepts. Automaton has 19758 states and 30209 transitions. Word has length 36 [2022-11-02 20:28:21,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:28:21,915 INFO L495 AbstractCegarLoop]: Abstraction has 19758 states and 30209 transitions. [2022-11-02 20:28:21,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:28:21,916 INFO L276 IsEmpty]: Start isEmpty. Operand 19758 states and 30209 transitions. [2022-11-02 20:28:21,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 20:28:21,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:28:21,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:28:21,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:28:21,921 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:28:21,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:28:21,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1307690219, now seen corresponding path program 1 times [2022-11-02 20:28:21,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:28:21,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560769479] [2022-11-02 20:28:21,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:28:21,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:28:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:22,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-02 20:28:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:22,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:22,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:22,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:28:22,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:28:22,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560769479] [2022-11-02 20:28:22,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560769479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:28:22,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:28:22,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:28:22,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142002162] [2022-11-02 20:28:22,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:28:22,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:28:22,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:28:22,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:28:22,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:28:22,535 INFO L87 Difference]: Start difference. First operand 19758 states and 30209 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:28:27,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:28:27,518 INFO L93 Difference]: Finished difference Result 61540 states and 95581 transitions. [2022-11-02 20:28:27,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:28:27,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2022-11-02 20:28:27,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:28:28,001 INFO L225 Difference]: With dead ends: 61540 [2022-11-02 20:28:28,001 INFO L226 Difference]: Without dead ends: 41785 [2022-11-02 20:28:28,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:28:28,102 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2196 mSDsluCounter, 3396 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 641 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2366 SdHoareTripleChecker+Valid, 5849 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 641 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:28:28,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2366 Valid, 5849 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [641 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-02 20:28:28,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41785 states. [2022-11-02 20:28:30,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41785 to 39398. [2022-11-02 20:28:30,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39398 states, 29452 states have (on average 1.4782018199103626) internal successors, (43536), 29588 states have internal predecessors, (43536), 8345 states have call successors, (8345), 1601 states have call predecessors, (8345), 1600 states have return successors, (8336), 8272 states have call predecessors, (8336), 8336 states have call successors, (8336) [2022-11-02 20:28:30,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39398 states to 39398 states and 60217 transitions. [2022-11-02 20:28:30,771 INFO L78 Accepts]: Start accepts. Automaton has 39398 states and 60217 transitions. Word has length 36 [2022-11-02 20:28:30,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:28:30,772 INFO L495 AbstractCegarLoop]: Abstraction has 39398 states and 60217 transitions. [2022-11-02 20:28:30,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:28:30,773 INFO L276 IsEmpty]: Start isEmpty. Operand 39398 states and 60217 transitions. [2022-11-02 20:28:30,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-02 20:28:30,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:28:30,775 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:28:30,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:28:30,775 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:28:30,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:28:30,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1420650670, now seen corresponding path program 1 times [2022-11-02 20:28:30,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:28:30,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158966129] [2022-11-02 20:28:30,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:28:30,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:28:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:31,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-02 20:28:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:31,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:31,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:31,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:28:31,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:28:31,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158966129] [2022-11-02 20:28:31,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158966129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:28:31,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:28:31,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:28:31,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993458343] [2022-11-02 20:28:31,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:28:31,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:28:31,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:28:31,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:28:31,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:28:31,659 INFO L87 Difference]: Start difference. First operand 39398 states and 60217 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:28:38,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:28:38,127 INFO L93 Difference]: Finished difference Result 122060 states and 189477 transitions. [2022-11-02 20:28:38,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:28:38,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2022-11-02 20:28:38,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:28:38,832 INFO L225 Difference]: With dead ends: 122060 [2022-11-02 20:28:38,833 INFO L226 Difference]: Without dead ends: 82665 [2022-11-02 20:28:39,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:28:39,586 INFO L413 NwaCegarLoop]: 2531 mSDtfsCounter, 2120 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 620 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2277 SdHoareTripleChecker+Valid, 5925 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 620 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:28:39,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2277 Valid, 5925 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [620 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-02 20:28:39,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82665 states. [2022-11-02 20:28:44,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82665 to 77910. [2022-11-02 20:28:44,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77910 states, 58316 states have (on average 1.4791137938130188) internal successors, (86256), 58580 states have internal predecessors, (86256), 16393 states have call successors, (16393), 3201 states have call predecessors, (16393), 3200 states have return successors, (16384), 16256 states have call predecessors, (16384), 16384 states have call successors, (16384) [2022-11-02 20:28:44,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77910 states to 77910 states and 119033 transitions. [2022-11-02 20:28:44,911 INFO L78 Accepts]: Start accepts. Automaton has 77910 states and 119033 transitions. Word has length 38 [2022-11-02 20:28:44,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:28:44,914 INFO L495 AbstractCegarLoop]: Abstraction has 77910 states and 119033 transitions. [2022-11-02 20:28:44,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:28:44,915 INFO L276 IsEmpty]: Start isEmpty. Operand 77910 states and 119033 transitions. [2022-11-02 20:28:44,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-02 20:28:44,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:28:44,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:28:44,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:28:44,920 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:28:44,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:28:44,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1677198866, now seen corresponding path program 1 times [2022-11-02 20:28:44,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:28:44,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757564403] [2022-11-02 20:28:44,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:28:44,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:28:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:45,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:28:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:45,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:45,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:45,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:28:45,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:28:45,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757564403] [2022-11-02 20:28:45,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757564403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:28:45,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:28:45,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:28:45,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161390916] [2022-11-02 20:28:45,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:28:45,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:28:45,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:28:45,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:28:45,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:28:45,408 INFO L87 Difference]: Start difference. First operand 77910 states and 119033 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:28:54,262 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 20:28:57,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:28:57,505 INFO L93 Difference]: Finished difference Result 242684 states and 376677 transitions. [2022-11-02 20:28:57,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:28:57,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2022-11-02 20:28:57,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:28:58,579 INFO L225 Difference]: With dead ends: 242684 [2022-11-02 20:28:58,579 INFO L226 Difference]: Without dead ends: 164777 [2022-11-02 20:28:59,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:28:59,571 INFO L413 NwaCegarLoop]: 2616 mSDtfsCounter, 2110 mSDsluCounter, 3418 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 607 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2270 SdHoareTripleChecker+Valid, 6034 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 607 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:28:59,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2270 Valid, 6034 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [607 Valid, 770 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-02 20:28:59,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164777 states. [2022-11-02 20:29:07,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164777 to 155286. [2022-11-02 20:29:07,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155286 states, 116172 states have (on average 1.4787728540440037) internal successors, (171792), 116692 states have internal predecessors, (171792), 32713 states have call successors, (32713), 6401 states have call predecessors, (32713), 6400 states have return successors, (32704), 32448 states have call predecessors, (32704), 32704 states have call successors, (32704) [2022-11-02 20:29:08,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155286 states to 155286 states and 237209 transitions. [2022-11-02 20:29:08,971 INFO L78 Accepts]: Start accepts. Automaton has 155286 states and 237209 transitions. Word has length 41 [2022-11-02 20:29:08,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:29:08,972 INFO L495 AbstractCegarLoop]: Abstraction has 155286 states and 237209 transitions. [2022-11-02 20:29:08,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:29:08,973 INFO L276 IsEmpty]: Start isEmpty. Operand 155286 states and 237209 transitions. [2022-11-02 20:29:08,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-02 20:29:08,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:29:08,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:29:08,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:29:08,975 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:29:08,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:29:08,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1315217039, now seen corresponding path program 1 times [2022-11-02 20:29:08,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:29:08,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021644751] [2022-11-02 20:29:08,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:29:08,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:29:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:29:09,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:29:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:29:09,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:29:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:29:09,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:29:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:29:09,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:29:09,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:29:09,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021644751] [2022-11-02 20:29:09,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021644751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:29:09,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:29:09,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:29:09,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728707361] [2022-11-02 20:29:09,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:29:09,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:29:09,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:29:09,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:29:09,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:29:09,461 INFO L87 Difference]: Start difference. First operand 155286 states and 237209 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)