./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 dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700c532-2fad-4107-bc3c-2c2b6c6104cc/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700c532-2fad-4107-bc3c-2c2b6c6104cc/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700c532-2fad-4107-bc3c-2c2b6c6104cc/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700c532-2fad-4107-bc3c-2c2b6c6104cc/bin/uautomizer-J5u9QxTXDZ/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_4700c532-2fad-4107-bc3c-2c2b6c6104cc/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700c532-2fad-4107-bc3c-2c2b6c6104cc/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-dbf71c6-m [2022-10-17 10:17:57,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:17:57,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:17:57,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:17:57,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:17:57,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:17:57,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:17:57,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:17:57,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:17:57,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:17:57,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:17:57,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:17:57,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:17:57,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:17:57,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:17:57,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:17:57,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:17:57,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:17:57,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:17:57,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:17:57,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:17:57,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:17:57,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:17:57,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:17:57,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:17:57,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:17:57,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:17:57,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:17:57,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:17:57,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:17:57,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:17:57,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:17:57,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:17:57,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:17:57,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:17:57,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:17:57,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:17:57,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:17:57,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:17:57,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:17:57,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:17:57,997 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700c532-2fad-4107-bc3c-2c2b6c6104cc/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:17:58,048 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:17:58,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:17:58,049 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:17:58,049 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:17:58,050 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:17:58,051 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:17:58,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:17:58,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:17:58,052 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:17:58,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:17:58,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:17:58,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:17:58,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:17:58,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:17:58,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:17:58,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:17:58,054 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:17:58,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:17:58,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:17:58,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:17:58,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:17:58,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:17:58,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:17:58,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:17:58,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:17:58,056 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:17:58,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:17:58,056 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:17:58,057 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:17:58,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:17:58,057 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_4700c532-2fad-4107-bc3c-2c2b6c6104cc/bin/uautomizer-J5u9QxTXDZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700c532-2fad-4107-bc3c-2c2b6c6104cc/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 [2022-10-17 10:17:58,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:17:58,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:17:58,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:17:58,386 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:17:58,387 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:17:58,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700c532-2fad-4107-bc3c-2c2b6c6104cc/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2022-10-17 10:17:58,454 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700c532-2fad-4107-bc3c-2c2b6c6104cc/bin/uautomizer-J5u9QxTXDZ/data/61ca21af0/2894c12d8f9c47028dc27b2b4055d497/FLAG9eb6017fe [2022-10-17 10:17:59,330 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:17:59,332 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700c532-2fad-4107-bc3c-2c2b6c6104cc/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2022-10-17 10:17:59,373 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700c532-2fad-4107-bc3c-2c2b6c6104cc/bin/uautomizer-J5u9QxTXDZ/data/61ca21af0/2894c12d8f9c47028dc27b2b4055d497/FLAG9eb6017fe [2022-10-17 10:17:59,804 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700c532-2fad-4107-bc3c-2c2b6c6104cc/bin/uautomizer-J5u9QxTXDZ/data/61ca21af0/2894c12d8f9c47028dc27b2b4055d497 [2022-10-17 10:17:59,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:17:59,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:17:59,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:17:59,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:17:59,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:17:59,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:17:59" (1/1) ... [2022-10-17 10:17:59,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@571a7b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:59, skipping insertion in model container [2022-10-17 10:17:59,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:17:59" (1/1) ... [2022-10-17 10:17:59,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:17:59,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:18:01,090 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_4700c532-2fad-4107-bc3c-2c2b6c6104cc/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2022-10-17 10:18:01,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:18:01,263 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:18:01,590 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_4700c532-2fad-4107-bc3c-2c2b6c6104cc/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2022-10-17 10:18:01,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:18:01,824 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:18:01,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:01 WrapperNode [2022-10-17 10:18:01,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:18:01,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:18:01,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:18:01,826 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:18:01,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:01" (1/1) ... [2022-10-17 10:18:01,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:01" (1/1) ... [2022-10-17 10:18:02,160 INFO L138 Inliner]: procedures = 184, calls = 1940, calls flagged for inlining = 74, calls inlined = 66, statements flattened = 5145 [2022-10-17 10:18:02,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:18:02,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:18:02,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:18:02,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:18:02,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:01" (1/1) ... [2022-10-17 10:18:02,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:01" (1/1) ... [2022-10-17 10:18:02,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:01" (1/1) ... [2022-10-17 10:18:02,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:01" (1/1) ... [2022-10-17 10:18:02,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:01" (1/1) ... [2022-10-17 10:18:02,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:01" (1/1) ... [2022-10-17 10:18:02,387 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:01" (1/1) ... [2022-10-17 10:18:02,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:01" (1/1) ... [2022-10-17 10:18:02,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:18:02,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:18:02,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:18:02,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:18:02,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:01" (1/1) ... [2022-10-17 10:18:02,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:18:02,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700c532-2fad-4107-bc3c-2c2b6c6104cc/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:18:02,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700c532-2fad-4107-bc3c-2c2b6c6104cc/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:18:02,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700c532-2fad-4107-bc3c-2c2b6c6104cc/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:18:02,544 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan [2022-10-17 10:18:02,544 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan [2022-10-17 10:18:02,544 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-10-17 10:18:02,544 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-10-17 10:18:02,544 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_word_swapped [2022-10-17 10:18:02,545 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_word_swapped [2022-10-17 10:18:02,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_asb100_data [2022-10-17 10:18:02,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_asb100_data [2022-10-17 10:18:02,545 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_max [2022-10-17 10:18:02,545 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_max [2022-10-17 10:18:02,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2022-10-17 10:18:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2022-10-17 10:18:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_max [2022-10-17 10:18:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_max [2022-10-17 10:18:02,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:18:02,547 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_hyst [2022-10-17 10:18:02,547 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_hyst [2022-10-17 10:18:02,547 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_TO_REG [2022-10-17 10:18:02,547 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_TO_REG [2022-10-17 10:18:02,547 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-10-17 10:18:02,548 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-10-17 10:18:02,548 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2022-10-17 10:18:02,548 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2022-10-17 10:18:02,548 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_hyst [2022-10-17 10:18:02,548 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_hyst [2022-10-17 10:18:02,548 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf_temp_from_reg [2022-10-17 10:18:02,548 INFO L138 BoogieDeclarations]: Found implementation of procedure sprintf_temp_from_reg [2022-10-17 10:18:02,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:18:02,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:18:02,549 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_update_device [2022-10-17 10:18:02,549 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_update_device [2022-10-17 10:18:02,549 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_word_swapped [2022-10-17 10:18:02,549 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_word_swapped [2022-10-17 10:18:02,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_asb100_data [2022-10-17 10:18:02,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_asb100_data [2022-10-17 10:18:02,550 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_div [2022-10-17 10:18:02,550 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_div [2022-10-17 10:18:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_div [2022-10-17 10:18:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_div [2022-10-17 10:18:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_TO_REG [2022-10-17 10:18:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_TO_REG [2022-10-17 10:18:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:18:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 10:18:02,610 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 10:18:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 10:18:02,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 10:18:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp [2022-10-17 10:18:02,611 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp [2022-10-17 10:18:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_max [2022-10-17 10:18:02,611 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_max [2022-10-17 10:18:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:18:02,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:18:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure IN_TO_REG [2022-10-17 10:18:02,611 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_TO_REG [2022-10-17 10:18:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_min [2022-10-17 10:18:02,611 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_min [2022-10-17 10:18:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_write_value [2022-10-17 10:18:02,612 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_write_value [2022-10-17 10:18:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure TEMP_TO_REG [2022-10-17 10:18:02,612 INFO L138 BoogieDeclarations]: Found implementation of procedure TEMP_TO_REG [2022-10-17 10:18:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:18:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-17 10:18:02,612 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-17 10:18:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_min [2022-10-17 10:18:02,612 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_min [2022-10-17 10:18:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:18:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:18:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_min [2022-10-17 10:18:02,613 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_min [2022-10-17 10:18:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_min [2022-10-17 10:18:02,613 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_min [2022-10-17 10:18:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:18:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_asb100_data [2022-10-17 10:18:02,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_asb100_data [2022-10-17 10:18:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max [2022-10-17 10:18:02,613 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max [2022-10-17 10:18:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2022-10-17 10:18:02,613 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2022-10-17 10:18:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2022-10-17 10:18:02,614 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2022-10-17 10:18:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2022-10-17 10:18:02,614 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2022-10-17 10:18:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure show_in [2022-10-17 10:18:02,614 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in [2022-10-17 10:18:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:18:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2022-10-17 10:18:02,614 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2022-10-17 10:18:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:18:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure IN_FROM_REG [2022-10-17 10:18:02,615 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_FROM_REG [2022-10-17 10:18:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-10-17 10:18:02,615 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-10-17 10:18:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:18:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2022-10-17 10:18:02,615 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2022-10-17 10:18:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_detect [2022-10-17 10:18:02,615 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_detect [2022-10-17 10:18:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_read_value [2022-10-17 10:18:02,615 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_read_value [2022-10-17 10:18:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-10-17 10:18:02,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-10-17 10:18:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_FROM_REG [2022-10-17 10:18:02,616 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_FROM_REG [2022-10-17 10:18:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-10-17 10:18:02,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-10-17 10:18:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_new_dummy [2022-10-17 10:18:02,616 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_new_dummy [2022-10-17 10:18:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:18:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2022-10-17 10:18:02,616 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2022-10-17 10:18:02,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:18:02,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:18:02,617 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-17 10:18:02,617 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-17 10:18:03,342 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:18:03,348 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:18:09,831 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:18:09,862 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:18:09,864 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:18:09,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:18:09 BoogieIcfgContainer [2022-10-17 10:18:09,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:18:09,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:18:09,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:18:09,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:18:09,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:17:59" (1/3) ... [2022-10-17 10:18:09,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576eb5f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:18:09, skipping insertion in model container [2022-10-17 10:18:09,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:01" (2/3) ... [2022-10-17 10:18:09,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576eb5f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:18:09, skipping insertion in model container [2022-10-17 10:18:09,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:18:09" (3/3) ... [2022-10-17 10:18:09,894 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2022-10-17 10:18:09,920 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:18:09,921 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:18:10,028 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:18:10,036 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;@40d4f029, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:18:10,036 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:18:10,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 1312 states, 982 states have (on average 1.490835030549898) internal successors, (1464), 996 states have internal predecessors, (1464), 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) [2022-10-17 10:18:10,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-17 10:18:10,063 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:18:10,063 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] [2022-10-17 10:18:10,064 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:18:10,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:18:10,070 INFO L85 PathProgramCache]: Analyzing trace with hash -660898654, now seen corresponding path program 1 times [2022-10-17 10:18:10,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:18:10,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002198037] [2022-10-17 10:18:10,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:18:10,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:18:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:11,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-17 10:18:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:11,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:11,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:11,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:11,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:18:11,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:18:11,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002198037] [2022-10-17 10:18:11,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002198037] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:18:11,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:18:11,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:18:11,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921920895] [2022-10-17 10:18:11,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:18:11,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:18:11,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:18:11,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:18:11,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:18:11,384 INFO L87 Difference]: Start difference. First operand has 1312 states, 982 states have (on average 1.490835030549898) internal successors, (1464), 996 states have internal predecessors, (1464), 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 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2022-10-17 10:18:14,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:18:14,267 INFO L93 Difference]: Finished difference Result 4080 states and 6739 transitions. [2022-10-17 10:18:14,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:18:14,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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 34 [2022-10-17 10:18:14,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:18:14,318 INFO L225 Difference]: With dead ends: 4080 [2022-10-17 10:18:14,319 INFO L226 Difference]: Without dead ends: 2763 [2022-10-17 10:18:14,341 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 [2022-10-17 10:18:14,344 INFO L413 NwaCegarLoop]: 2337 mSDtfsCounter, 2309 mSDsluCounter, 3398 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 667 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2482 SdHoareTripleChecker+Valid, 5735 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 667 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:18:14,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2482 Valid, 5735 Invalid, 1435 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [667 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-10-17 10:18:14,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2022-10-17 10:18:14,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2580. [2022-10-17 10:18:14,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2580 states, 1936 states have (on average 1.4834710743801653) internal successors, (2872), 1952 states have internal predecessors, (2872), 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) [2022-10-17 10:18:14,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2580 states to 2580 states and 3949 transitions. [2022-10-17 10:18:14,598 INFO L78 Accepts]: Start accepts. Automaton has 2580 states and 3949 transitions. Word has length 34 [2022-10-17 10:18:14,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:18:14,599 INFO L495 AbstractCegarLoop]: Abstraction has 2580 states and 3949 transitions. [2022-10-17 10:18:14,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2022-10-17 10:18:14,600 INFO L276 IsEmpty]: Start isEmpty. Operand 2580 states and 3949 transitions. [2022-10-17 10:18:14,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-17 10:18:14,604 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:18:14,604 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] [2022-10-17 10:18:14,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:18:14,605 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:18:14,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:18:14,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1304109229, now seen corresponding path program 1 times [2022-10-17 10:18:14,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:18:14,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737410387] [2022-10-17 10:18:14,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:18:14,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:18:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:15,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:18:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:15,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:15,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:15,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:18:15,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:18:15,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737410387] [2022-10-17 10:18:15,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737410387] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:18:15,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:18:15,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:18:15,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195638787] [2022-10-17 10:18:15,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:18:15,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:18:15,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:18:15,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:18:15,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:18:15,078 INFO L87 Difference]: Start difference. First operand 2580 states and 3949 transitions. 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) [2022-10-17 10:18:17,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:18:17,751 INFO L93 Difference]: Finished difference Result 8042 states and 12491 transitions. [2022-10-17 10:18:17,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:18:17,752 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 [2022-10-17 10:18:17,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:18:17,808 INFO L225 Difference]: With dead ends: 8042 [2022-10-17 10:18:17,809 INFO L226 Difference]: Without dead ends: 5465 [2022-10-17 10:18:17,833 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 [2022-10-17 10:18:17,835 INFO L413 NwaCegarLoop]: 2530 mSDtfsCounter, 2236 mSDsluCounter, 3448 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 5978 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:18:17,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2403 Valid, 5978 Invalid, 1414 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [643 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-10-17 10:18:17,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5465 states. [2022-10-17 10:18:18,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5465 to 5118. [2022-10-17 10:18:18,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5118 states, 3844 states have (on average 1.4828303850156088) internal successors, (5700), 3868 states have internal predecessors, (5700), 1073 states have call successors, (1073), 201 states have call predecessors, (1073), 200 states have return successors, (1064), 1056 states have call predecessors, (1064), 1064 states have call successors, (1064) [2022-10-17 10:18:18,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5118 states to 5118 states and 7837 transitions. [2022-10-17 10:18:18,147 INFO L78 Accepts]: Start accepts. Automaton has 5118 states and 7837 transitions. Word has length 35 [2022-10-17 10:18:18,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:18:18,148 INFO L495 AbstractCegarLoop]: Abstraction has 5118 states and 7837 transitions. [2022-10-17 10:18:18,148 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) [2022-10-17 10:18:18,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5118 states and 7837 transitions. [2022-10-17 10:18:18,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-17 10:18:18,154 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:18:18,154 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, 1, 1, 1, 1] [2022-10-17 10:18:18,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:18:18,155 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:18:18,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:18:18,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1015238842, now seen corresponding path program 1 times [2022-10-17 10:18:18,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:18:18,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329999107] [2022-10-17 10:18:18,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:18:18,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:18:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:18,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-17 10:18:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:18,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:18,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:18,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:18,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:18:18,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:18:18,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329999107] [2022-10-17 10:18:18,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329999107] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:18:18,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:18:18,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:18:18,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245330133] [2022-10-17 10:18:18,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:18:18,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:18:18,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:18:18,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:18:18,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:18:18,746 INFO L87 Difference]: Start difference. First operand 5118 states and 7837 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-10-17 10:18:21,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:18:21,243 INFO L93 Difference]: Finished difference Result 15980 states and 24833 transitions. [2022-10-17 10:18:21,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:18:21,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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 45 [2022-10-17 10:18:21,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:18:21,339 INFO L225 Difference]: With dead ends: 15980 [2022-10-17 10:18:21,340 INFO L226 Difference]: Without dead ends: 10865 [2022-10-17 10:18:21,374 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 [2022-10-17 10:18:21,378 INFO L413 NwaCegarLoop]: 2579 mSDtfsCounter, 2181 mSDsluCounter, 3443 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2340 SdHoareTripleChecker+Valid, 6022 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 634 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-17 10:18:21,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2340 Valid, 6022 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [634 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-17 10:18:21,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10865 states. [2022-10-17 10:18:21,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10865 to 10190. [2022-10-17 10:18:21,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10190 states, 7656 states have (on average 1.4822361546499478) internal successors, (11348), 7696 states have internal predecessors, (11348), 2133 states have call successors, (2133), 401 states have call predecessors, (2133), 400 states have return successors, (2124), 2108 states have call predecessors, (2124), 2124 states have call successors, (2124) [2022-10-17 10:18:22,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10190 states to 10190 states and 15605 transitions. [2022-10-17 10:18:22,152 INFO L78 Accepts]: Start accepts. Automaton has 10190 states and 15605 transitions. Word has length 45 [2022-10-17 10:18:22,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:18:22,153 INFO L495 AbstractCegarLoop]: Abstraction has 10190 states and 15605 transitions. [2022-10-17 10:18:22,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-10-17 10:18:22,154 INFO L276 IsEmpty]: Start isEmpty. Operand 10190 states and 15605 transitions. [2022-10-17 10:18:22,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-17 10:18:22,157 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:18:22,157 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] [2022-10-17 10:18:22,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:18:22,157 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:18:22,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:18:22,159 INFO L85 PathProgramCache]: Analyzing trace with hash -81678797, now seen corresponding path program 1 times [2022-10-17 10:18:22,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:18:22,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919141947] [2022-10-17 10:18:22,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:18:22,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:18:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:22,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-17 10:18:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:22,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:22,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:22,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:18:22,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:18:22,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919141947] [2022-10-17 10:18:22,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919141947] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:18:22,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:18:22,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:18:22,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449788764] [2022-10-17 10:18:22,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:18:22,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:18:22,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:18:22,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:18:22,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:18:22,686 INFO L87 Difference]: Start difference. First operand 10190 states and 15605 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) [2022-10-17 10:18:25,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:18:25,862 INFO L93 Difference]: Finished difference Result 31796 states and 49409 transitions. [2022-10-17 10:18:25,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:18:25,862 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 [2022-10-17 10:18:25,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:18:26,000 INFO L225 Difference]: With dead ends: 31796 [2022-10-17 10:18:26,000 INFO L226 Difference]: Without dead ends: 21609 [2022-10-17 10:18:26,056 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 [2022-10-17 10:18:26,057 INFO L413 NwaCegarLoop]: 2681 mSDtfsCounter, 2147 mSDsluCounter, 3455 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 619 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2303 SdHoareTripleChecker+Valid, 6136 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 619 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:18:26,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2303 Valid, 6136 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [619 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-10-17 10:18:26,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21609 states.