./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--w83781d.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0bfbd0-1446-4562-8fd0-464b3ab56d27/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0bfbd0-1446-4562-8fd0-464b3ab56d27/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0bfbd0-1446-4562-8fd0-464b3ab56d27/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0bfbd0-1446-4562-8fd0-464b3ab56d27/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0bfbd0-1446-4562-8fd0-464b3ab56d27/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0bfbd0-1446-4562-8fd0-464b3ab56d27/bin/uautomizer-tPACEb0tL8 --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 98c33dd4a8b9d397de123c51515d9ce94b0ce1f1fda3976c2bf2bd86eef00096 --- 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-e04fb08 [2022-11-16 11:36:14,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:36:14,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:36:14,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:36:14,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:36:14,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:36:14,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:36:14,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:36:14,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:36:14,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:36:14,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:36:14,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:36:14,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:36:14,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:36:14,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:36:14,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:36:14,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:36:14,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:36:14,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:36:14,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:36:14,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:36:14,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:36:14,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:36:14,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:36:14,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:36:14,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:36:14,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:36:14,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:36:14,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:36:14,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:36:14,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:36:14,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:36:14,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:36:14,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:36:14,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:36:14,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:36:14,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:36:14,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:36:14,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:36:14,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:36:14,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:36:14,983 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0bfbd0-1446-4562-8fd0-464b3ab56d27/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:36:15,009 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:36:15,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:36:15,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:36:15,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:36:15,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:36:15,011 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:36:15,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:36:15,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:36:15,012 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:36:15,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:36:15,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:36:15,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:36:15,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:36:15,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:36:15,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:36:15,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:36:15,015 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:36:15,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:36:15,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:36:15,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:36:15,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:36:15,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:36:15,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:36:15,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:36:15,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:36:15,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:36:15,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:36:15,018 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:36:15,018 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:36:15,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:36:15,019 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_9a0bfbd0-1446-4562-8fd0-464b3ab56d27/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0bfbd0-1446-4562-8fd0-464b3ab56d27/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98c33dd4a8b9d397de123c51515d9ce94b0ce1f1fda3976c2bf2bd86eef00096 [2022-11-16 11:36:15,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:36:15,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:36:15,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:36:15,364 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:36:15,365 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:36:15,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0bfbd0-1446-4562-8fd0-464b3ab56d27/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i [2022-11-16 11:36:15,446 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0bfbd0-1446-4562-8fd0-464b3ab56d27/bin/uautomizer-tPACEb0tL8/data/abbcc52b1/ba7065f0d0454bcca180d5d3af926aab/FLAG735d20a6d [2022-11-16 11:36:16,461 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:36:16,462 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0bfbd0-1446-4562-8fd0-464b3ab56d27/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i [2022-11-16 11:36:16,514 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0bfbd0-1446-4562-8fd0-464b3ab56d27/bin/uautomizer-tPACEb0tL8/data/abbcc52b1/ba7065f0d0454bcca180d5d3af926aab/FLAG735d20a6d [2022-11-16 11:36:16,879 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0bfbd0-1446-4562-8fd0-464b3ab56d27/bin/uautomizer-tPACEb0tL8/data/abbcc52b1/ba7065f0d0454bcca180d5d3af926aab [2022-11-16 11:36:16,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:36:16,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:36:16,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:36:16,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:36:16,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:36:16,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:36:16" (1/1) ... [2022-11-16 11:36:16,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d40d34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:16, skipping insertion in model container [2022-11-16 11:36:16,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:36:16" (1/1) ... [2022-11-16 11:36:16,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:36:17,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:36:18,824 WARN L229 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_9a0bfbd0-1446-4562-8fd0-464b3ab56d27/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i[231089,231102] [2022-11-16 11:36:18,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:36:19,083 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:36:19,521 WARN L229 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_9a0bfbd0-1446-4562-8fd0-464b3ab56d27/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i[231089,231102] [2022-11-16 11:36:19,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:36:19,883 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:36:19,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:19 WrapperNode [2022-11-16 11:36:19,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:36:19,886 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:36:19,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:36:19,887 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:36:19,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:19" (1/1) ... [2022-11-16 11:36:20,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:19" (1/1) ... [2022-11-16 11:36:20,298 INFO L138 Inliner]: procedures = 206, calls = 3152, calls flagged for inlining = 89, calls inlined = 81, statements flattened = 8149 [2022-11-16 11:36:20,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:36:20,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:36:20,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:36:20,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:36:20,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:19" (1/1) ... [2022-11-16 11:36:20,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:19" (1/1) ... [2022-11-16 11:36:20,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:19" (1/1) ... [2022-11-16 11:36:20,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:19" (1/1) ... [2022-11-16 11:36:20,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:19" (1/1) ... [2022-11-16 11:36:20,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:19" (1/1) ... [2022-11-16 11:36:20,709 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:19" (1/1) ... [2022-11-16 11:36:20,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:19" (1/1) ... [2022-11-16 11:36:20,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:36:20,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:36:20,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:36:20,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:36:20,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:19" (1/1) ... [2022-11-16 11:36:20,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:36:20,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0bfbd0-1446-4562-8fd0-464b3ab56d27/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:36:20,800 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0bfbd0-1446-4562-8fd0-464b3ab56d27/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:36:20,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0bfbd0-1446-4562-8fd0-464b3ab56d27/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:36:20,844 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_read_value [2022-11-16 11:36:20,845 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_read_value [2022-11-16 11:36:20,845 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_max [2022-11-16 11:36:20,845 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_max [2022-11-16 11:36:20,845 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_detect [2022-11-16 11:36:20,846 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_detect [2022-11-16 11:36:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_TO_REG [2022-11-16 11:36:20,846 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_TO_REG [2022-11-16 11:36:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure store_beep [2022-11-16 11:36:20,847 INFO L138 BoogieDeclarations]: Found implementation of procedure store_beep [2022-11-16 11:36:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 11:36:20,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 11:36:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure store_pwm [2022-11-16 11:36:20,847 INFO L138 BoogieDeclarations]: Found implementation of procedure store_pwm [2022-11-16 11:36:20,848 INFO L130 BoogieDeclarations]: Found specification of procedure store_in_min [2022-11-16 11:36:20,848 INFO L138 BoogieDeclarations]: Found implementation of procedure store_in_min [2022-11-16 11:36:20,848 INFO L130 BoogieDeclarations]: Found specification of procedure store_fan_div [2022-11-16 11:36:20,849 INFO L138 BoogieDeclarations]: Found implementation of procedure store_fan_div [2022-11-16 11:36:20,849 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_FROM_REG [2022-11-16 11:36:20,849 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_FROM_REG [2022-11-16 11:36:20,849 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 11:36:20,850 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 11:36:20,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 11:36:20,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 11:36:20,850 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-11-16 11:36:20,850 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-11-16 11:36:20,850 INFO L130 BoogieDeclarations]: Found specification of procedure show_sensor [2022-11-16 11:36:20,851 INFO L138 BoogieDeclarations]: Found implementation of procedure show_sensor [2022-11-16 11:36:20,851 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-16 11:36:20,851 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-16 11:36:20,851 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_min [2022-11-16 11:36:20,851 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_min [2022-11-16 11:36:20,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:36:20,851 INFO L130 BoogieDeclarations]: Found specification of procedure store_temp_max_hyst [2022-11-16 11:36:20,852 INFO L138 BoogieDeclarations]: Found implementation of procedure store_temp_max_hyst [2022-11-16 11:36:20,852 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2022-11-16 11:36:20,852 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2022-11-16 11:36:20,853 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2022-11-16 11:36:20,853 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2022-11-16 11:36:20,853 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2022-11-16 11:36:20,853 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2022-11-16 11:36:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_isa_unregister [2022-11-16 11:36:20,854 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_isa_unregister [2022-11-16 11:36:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure show_in [2022-11-16 11:36:20,854 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in [2022-11-16 11:36:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:36:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure show_beep [2022-11-16 11:36:20,855 INFO L138 BoogieDeclarations]: Found implementation of procedure show_beep [2022-11-16 11:36:20,855 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2022-11-16 11:36:20,855 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2022-11-16 11:36:20,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:36:20,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 11:36:20,856 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2022-11-16 11:36:20,856 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2022-11-16 11:36:20,857 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-16 11:36:20,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-16 11:36:20,858 INFO L130 BoogieDeclarations]: Found specification of procedure show_pwm [2022-11-16 11:36:20,859 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pwm [2022-11-16 11:36:20,859 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_FROM_REG [2022-11-16 11:36:20,859 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_FROM_REG [2022-11-16 11:36:20,859 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-16 11:36:20,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-16 11:36:20,859 INFO L130 BoogieDeclarations]: Found specification of procedure store_sensor [2022-11-16 11:36:20,860 INFO L138 BoogieDeclarations]: Found implementation of procedure store_sensor [2022-11-16 11:36:20,860 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_update_device [2022-11-16 11:36:20,860 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_update_device [2022-11-16 11:36:20,860 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_remove_files [2022-11-16 11:36:20,861 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_remove_files [2022-11-16 11:36:20,861 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan [2022-11-16 11:36:20,861 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan [2022-11-16 11:36:20,861 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-16 11:36:20,862 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-16 11:36:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure store_in_max [2022-11-16 11:36:20,863 INFO L138 BoogieDeclarations]: Found implementation of procedure store_in_max [2022-11-16 11:36:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_word_swapped [2022-11-16 11:36:20,863 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_word_swapped [2022-11-16 11:36:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2022-11-16 11:36:20,863 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2022-11-16 11:36:20,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_w83781d_data [2022-11-16 11:36:20,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_w83781d_data [2022-11-16 11:36:20,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:36:20,864 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-16 11:36:20,864 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-16 11:36:20,864 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2022-11-16 11:36:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2022-11-16 11:36:20,865 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_word_swapped [2022-11-16 11:36:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_word_swapped [2022-11-16 11:36:20,865 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_div [2022-11-16 11:36:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_div [2022-11-16 11:36:20,866 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_TO_REG [2022-11-16 11:36:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_TO_REG [2022-11-16 11:36:20,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:36:20,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_w83781d_data [2022-11-16 11:36:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_w83781d_data [2022-11-16 11:36:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp [2022-11-16 11:36:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp [2022-11-16 11:36:20,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 11:36:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 11:36:20,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_w83781d_data [2022-11-16 11:36:20,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_w83781d_data [2022-11-16 11:36:20,870 INFO L130 BoogieDeclarations]: Found specification of procedure store_temp_max [2022-11-16 11:36:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure store_temp_max [2022-11-16 11:36:20,871 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_write_value [2022-11-16 11:36:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_write_value [2022-11-16 11:36:20,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:36:20,871 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_min [2022-11-16 11:36:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_min [2022-11-16 11:36:20,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:36:20,872 INFO L130 BoogieDeclarations]: Found specification of procedure store_fan_min [2022-11-16 11:36:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure store_fan_min [2022-11-16 11:36:20,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:36:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_w83781d_data [2022-11-16 11:36:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_w83781d_data [2022-11-16 11:36:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max [2022-11-16 11:36:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max [2022-11-16 11:36:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max_hyst [2022-11-16 11:36:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max_hyst [2022-11-16 11:36:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-11-16 11:36:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-11-16 11:36:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:36:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2022-11-16 11:36:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2022-11-16 11:36:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:36:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:36:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 11:36:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 11:36:22,075 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:36:22,080 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:36:31,841 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:36:31,876 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:36:31,876 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:36:31,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:36:31 BoogieIcfgContainer [2022-11-16 11:36:31,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:36:31,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:36:31,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:36:31,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:36:31,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:36:16" (1/3) ... [2022-11-16 11:36:31,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a6e9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:36:31, skipping insertion in model container [2022-11-16 11:36:31,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:19" (2/3) ... [2022-11-16 11:36:31,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a6e9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:36:31, skipping insertion in model container [2022-11-16 11:36:31,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:36:31" (3/3) ... [2022-11-16 11:36:31,897 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i [2022-11-16 11:36:31,925 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:36:31,925 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:36:32,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:36:32,093 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;@468fa459, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:36:32,093 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:36:32,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 1958 states, 1472 states have (on average 1.5230978260869565) internal successors, (2242), 1483 states have internal predecessors, (2242), 427 states have call successors, (427), 57 states have call predecessors, (427), 57 states have return successors, (427), 427 states have call predecessors, (427), 427 states have call successors, (427) [2022-11-16 11:36:32,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:36:32,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:32,129 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] [2022-11-16 11:36:32,129 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:36:32,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:32,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1006007787, now seen corresponding path program 1 times [2022-11-16 11:36:32,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:32,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869752149] [2022-11-16 11:36:32,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:32,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:32,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:33,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:36:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:33,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:33,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:33,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:33,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869752149] [2022-11-16 11:36:33,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869752149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:33,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:33,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:36:33,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789150702] [2022-11-16 11:36:33,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:33,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:36:33,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:33,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:36:33,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:36:33,596 INFO L87 Difference]: Start difference. First operand has 1958 states, 1472 states have (on average 1.5230978260869565) internal successors, (2242), 1483 states have internal predecessors, (2242), 427 states have call successors, (427), 57 states have call predecessors, (427), 57 states have return successors, (427), 427 states have call predecessors, (427), 427 states have call successors, (427) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:36:37,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:37,948 INFO L93 Difference]: Finished difference Result 5874 states and 9911 transitions. [2022-11-16 11:36:37,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:36:37,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2022-11-16 11:36:37,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:38,006 INFO L225 Difference]: With dead ends: 5874 [2022-11-16 11:36:38,006 INFO L226 Difference]: Without dead ends: 3911 [2022-11-16 11:36:38,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:36:38,063 INFO L413 NwaCegarLoop]: 3643 mSDtfsCounter, 3110 mSDsluCounter, 5280 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 850 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3370 SdHoareTripleChecker+Valid, 8923 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 850 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:38,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3370 Valid, 8923 Invalid, 2226 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [850 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-16 11:36:38,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3911 states. [2022-11-16 11:36:38,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3911 to 3875. [2022-11-16 11:36:38,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3875 states, 2918 states have (on average 1.522960932145305) internal successors, (4444), 2929 states have internal predecessors, (4444), 844 states have call successors, (844), 113 states have call predecessors, (844), 112 states have return successors, (835), 834 states have call predecessors, (835), 835 states have call successors, (835) [2022-11-16 11:36:38,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3875 states to 3875 states and 6123 transitions. [2022-11-16 11:36:38,628 INFO L78 Accepts]: Start accepts. Automaton has 3875 states and 6123 transitions. Word has length 28 [2022-11-16 11:36:38,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:38,628 INFO L495 AbstractCegarLoop]: Abstraction has 3875 states and 6123 transitions. [2022-11-16 11:36:38,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:36:38,629 INFO L276 IsEmpty]: Start isEmpty. Operand 3875 states and 6123 transitions. [2022-11-16 11:36:38,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-16 11:36:38,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:38,639 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] [2022-11-16 11:36:38,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:36:38,639 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:36:38,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:38,640 INFO L85 PathProgramCache]: Analyzing trace with hash -753113751, now seen corresponding path program 1 times [2022-11-16 11:36:38,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:38,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858427739] [2022-11-16 11:36:38,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:38,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:39,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-16 11:36:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:39,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:39,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:39,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:39,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858427739] [2022-11-16 11:36:39,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858427739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:39,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:39,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:36:39,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270194296] [2022-11-16 11:36:39,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:39,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:36:39,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:39,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:36:39,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:36:39,418 INFO L87 Difference]: Start difference. First operand 3875 states and 6123 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:36:44,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:44,148 INFO L93 Difference]: Finished difference Result 11631 states and 18437 transitions. [2022-11-16 11:36:44,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:36:44,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2022-11-16 11:36:44,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:44,214 INFO L225 Difference]: With dead ends: 11631 [2022-11-16 11:36:44,215 INFO L226 Difference]: Without dead ends: 7759 [2022-11-16 11:36:44,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:36:44,250 INFO L413 NwaCegarLoop]: 3555 mSDtfsCounter, 3097 mSDsluCounter, 5182 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 848 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3357 SdHoareTripleChecker+Valid, 8737 SdHoareTripleChecker+Invalid, 2228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 848 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:44,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3357 Valid, 8737 Invalid, 2228 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [848 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-16 11:36:44,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7759 states. [2022-11-16 11:36:44,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7759 to 7707. [2022-11-16 11:36:44,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7707 states, 5807 states have (on average 1.522817289478216) internal successors, (8843), 5822 states have internal predecessors, (8843), 1675 states have call successors, (1675), 225 states have call predecessors, (1675), 224 states have return successors, (1666), 1663 states have call predecessors, (1666), 1666 states have call successors, (1666) [2022-11-16 11:36:44,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7707 states to 7707 states and 12184 transitions. [2022-11-16 11:36:44,664 INFO L78 Accepts]: Start accepts. Automaton has 7707 states and 12184 transitions. Word has length 31 [2022-11-16 11:36:44,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:44,665 INFO L495 AbstractCegarLoop]: Abstraction has 7707 states and 12184 transitions. [2022-11-16 11:36:44,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:36:44,665 INFO L276 IsEmpty]: Start isEmpty. Operand 7707 states and 12184 transitions. [2022-11-16 11:36:44,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:36:44,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:44,669 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] [2022-11-16 11:36:44,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:36:44,673 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:36:44,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:44,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1828069062, now seen corresponding path program 1 times [2022-11-16 11:36:44,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:44,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846622911] [2022-11-16 11:36:44,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:44,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:45,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:36:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:45,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:45,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:45,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:45,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846622911] [2022-11-16 11:36:45,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846622911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:45,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:45,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:36:45,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320344922] [2022-11-16 11:36:45,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:45,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:36:45,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:45,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:36:45,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:36:45,427 INFO L87 Difference]: Start difference. First operand 7707 states and 12184 transitions. 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:36:50,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:50,539 INFO L93 Difference]: Finished difference Result 23139 states and 36694 transitions. [2022-11-16 11:36:50,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:36:50,540 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2022-11-16 11:36:50,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:50,700 INFO L225 Difference]: With dead ends: 23139 [2022-11-16 11:36:50,701 INFO L226 Difference]: Without dead ends: 15435 [2022-11-16 11:36:50,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:36:50,781 INFO L413 NwaCegarLoop]: 3480 mSDtfsCounter, 3097 mSDsluCounter, 5119 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 873 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3344 SdHoareTripleChecker+Valid, 8599 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 873 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:50,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3344 Valid, 8599 Invalid, 2246 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [873 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-16 11:36:50,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15435 states. [2022-11-16 11:36:51,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15435 to 15351. [2022-11-16 11:36:51,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15351 states, 11569 states have (on average 1.5224306335897657) internal successors, (17613), 11592 states have internal predecessors, (17613), 3333 states have call successors, (3333), 449 states have call predecessors, (3333), 448 states have return successors, (3324), 3317 states have call predecessors, (3324), 3324 states have call successors, (3324) [2022-11-16 11:36:51,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15351 states to 15351 states and 24270 transitions. [2022-11-16 11:36:51,827 INFO L78 Accepts]: Start accepts. Automaton has 15351 states and 24270 transitions. Word has length 32 [2022-11-16 11:36:51,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:51,828 INFO L495 AbstractCegarLoop]: Abstraction has 15351 states and 24270 transitions. [2022-11-16 11:36:51,829 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:36:51,830 INFO L276 IsEmpty]: Start isEmpty. Operand 15351 states and 24270 transitions. [2022-11-16 11:36:51,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:36:51,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:51,832 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] [2022-11-16 11:36:51,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:36:51,833 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:36:51,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:51,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1639797615, now seen corresponding path program 1 times [2022-11-16 11:36:51,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:51,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929734434] [2022-11-16 11:36:51,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:51,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:52,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:36:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:52,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:36:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:52,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:52,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:52,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929734434] [2022-11-16 11:36:52,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929734434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:52,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:52,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:36:52,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168427144] [2022-11-16 11:36:52,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:52,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:36:52,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:52,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:36:52,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:36:52,486 INFO L87 Difference]: Start difference. First operand 15351 states and 24270 transitions. 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:36:57,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:57,188 INFO L93 Difference]: Finished difference Result 46127 states and 73156 transitions. [2022-11-16 11:36:57,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:36:57,189 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2022-11-16 11:36:57,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:57,546 INFO L225 Difference]: With dead ends: 46127 [2022-11-16 11:36:57,546 INFO L226 Difference]: Without dead ends: 30779 [2022-11-16 11:36:57,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:36:57,623 INFO L413 NwaCegarLoop]: 3510 mSDtfsCounter, 3103 mSDsluCounter, 5164 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 872 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3350 SdHoareTripleChecker+Valid, 8674 SdHoareTripleChecker+Invalid, 2242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 872 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:57,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3350 Valid, 8674 Invalid, 2242 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [872 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-16 11:36:57,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30779 states. [2022-11-16 11:36:59,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30779 to 30631. [2022-11-16 11:36:59,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30631 states, 23085 states have (on average 1.5220706086203162) internal successors, (35137), 23124 states have internal predecessors, (35137), 6649 states have call successors, (6649), 897 states have call predecessors, (6649), 896 states have return successors, (6640), 6625 states have call predecessors, (6640), 6640 states have call successors, (6640) [2022-11-16 11:36:59,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30631 states to 30631 states and 48426 transitions. [2022-11-16 11:36:59,353 INFO L78 Accepts]: Start accepts. Automaton has 30631 states and 48426 transitions. Word has length 32 [2022-11-16 11:36:59,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:59,354 INFO L495 AbstractCegarLoop]: Abstraction has 30631 states and 48426 transitions. [2022-11-16 11:36:59,354 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:36:59,354 INFO L276 IsEmpty]: Start isEmpty. Operand 30631 states and 48426 transitions. [2022-11-16 11:36:59,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-16 11:36:59,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:59,357 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] [2022-11-16 11:36:59,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:36:59,358 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:36:59,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:59,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1640790936, now seen corresponding path program 1 times [2022-11-16 11:36:59,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:59,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904544787] [2022-11-16 11:36:59,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:59,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:00,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:37:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:00,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:37:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:00,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:00,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:00,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904544787] [2022-11-16 11:37:00,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904544787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:00,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:00,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:37:00,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162502809] [2022-11-16 11:37:00,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:00,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:37:00,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:00,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:37:00,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:37:00,041 INFO L87 Difference]: Start difference. First operand 30631 states and 48426 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:37:05,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:05,298 INFO L93 Difference]: Finished difference Result 91983 states and 145864 transitions. [2022-11-16 11:37:05,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:37:05,299 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2022-11-16 11:37:05,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:05,843 INFO L225 Difference]: With dead ends: 91983 [2022-11-16 11:37:05,843 INFO L226 Difference]: Without dead ends: 61355 [2022-11-16 11:37:05,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:37:05,981 INFO L413 NwaCegarLoop]: 3504 mSDtfsCounter, 3097 mSDsluCounter, 5156 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 871 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3357 SdHoareTripleChecker+Valid, 8660 SdHoareTripleChecker+Invalid, 2243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 871 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:05,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3357 Valid, 8660 Invalid, 2243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [871 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-16 11:37:06,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61355 states. [2022-11-16 11:37:09,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61355 to 61079. [2022-11-16 11:37:09,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61079 states, 46029 states have (on average 1.5214973169089052) internal successors, (70033), 46100 states have internal predecessors, (70033), 13257 states have call successors, (13257), 1793 states have call predecessors, (13257), 1792 states have return successors, (13248), 13217 states have call predecessors, (13248), 13248 states have call successors, (13248) [2022-11-16 11:37:09,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61079 states to 61079 states and 96538 transitions. [2022-11-16 11:37:09,755 INFO L78 Accepts]: Start accepts. Automaton has 61079 states and 96538 transitions. Word has length 34 [2022-11-16 11:37:09,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:09,755 INFO L495 AbstractCegarLoop]: Abstraction has 61079 states and 96538 transitions. [2022-11-16 11:37:09,756 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:37:09,756 INFO L276 IsEmpty]: Start isEmpty. Operand 61079 states and 96538 transitions. [2022-11-16 11:37:09,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-16 11:37:09,757 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:09,757 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] [2022-11-16 11:37:09,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:37:09,758 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:37:09,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:09,759 INFO L85 PathProgramCache]: Analyzing trace with hash 343352040, now seen corresponding path program 1 times [2022-11-16 11:37:09,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:09,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880226088] [2022-11-16 11:37:09,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:09,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:10,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:37:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:10,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:37:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:10,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:10,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:10,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880226088] [2022-11-16 11:37:10,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880226088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:10,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:10,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:37:10,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068413271] [2022-11-16 11:37:10,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:10,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:37:10,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:10,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:37:10,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:37:10,410 INFO L87 Difference]: Start difference. First operand 61079 states and 96538 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:37:17,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:17,850 INFO L93 Difference]: Finished difference Result 183423 states and 290792 transitions. [2022-11-16 11:37:17,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:37:17,851 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 36 [2022-11-16 11:37:17,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:18,967 INFO L225 Difference]: With dead ends: 183423 [2022-11-16 11:37:18,968 INFO L226 Difference]: Without dead ends: 122347 [2022-11-16 11:37:19,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:37:19,327 INFO L413 NwaCegarLoop]: 3532 mSDtfsCounter, 3093 mSDsluCounter, 5179 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 868 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3342 SdHoareTripleChecker+Valid, 8711 SdHoareTripleChecker+Invalid, 2241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 868 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:19,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3342 Valid, 8711 Invalid, 2241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [868 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-16 11:37:19,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122347 states. [2022-11-16 11:37:24,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122347 to 121815. [2022-11-16 11:37:24,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121815 states, 91789 states have (on average 1.52089030275959) internal successors, (139601), 91924 states have internal predecessors, (139601), 26441 states have call successors, (26441), 3585 states have call predecessors, (26441), 3584 states have return successors, (26432), 26369 states have call predecessors, (26432), 26432 states have call successors, (26432) [2022-11-16 11:37:25,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121815 states to 121815 states and 192474 transitions. [2022-11-16 11:37:25,359 INFO L78 Accepts]: Start accepts. Automaton has 121815 states and 192474 transitions. Word has length 36 [2022-11-16 11:37:25,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:25,364 INFO L495 AbstractCegarLoop]: Abstraction has 121815 states and 192474 transitions. [2022-11-16 11:37:25,364 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:37:25,365 INFO L276 IsEmpty]: Start isEmpty. Operand 121815 states and 192474 transitions. [2022-11-16 11:37:25,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-16 11:37:25,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:25,367 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] [2022-11-16 11:37:25,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:37:25,368 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:37:25,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:25,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1918452735, now seen corresponding path program 1 times [2022-11-16 11:37:25,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:25,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24814225] [2022-11-16 11:37:25,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:25,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:26,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:37:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:26,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:37:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:26,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:26,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:26,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24814225] [2022-11-16 11:37:26,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24814225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:26,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:26,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:37:26,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173347727] [2022-11-16 11:37:26,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:26,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:37:26,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:26,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:37:26,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:37:26,301 INFO L87 Difference]: Start difference. First operand 121815 states and 192474 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, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:37:37,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:37,446 INFO L93 Difference]: Finished difference Result 365823 states and 579784 transitions. [2022-11-16 11:37:37,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:37:37,447 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, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2022-11-16 11:37:37,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:38,860 INFO L225 Difference]: With dead ends: 365823 [2022-11-16 11:37:38,860 INFO L226 Difference]: Without dead ends: 244011 [2022-11-16 11:37:39,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:37:39,989 INFO L413 NwaCegarLoop]: 3534 mSDtfsCounter, 3092 mSDsluCounter, 5164 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 866 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3341 SdHoareTripleChecker+Valid, 8698 SdHoareTripleChecker+Invalid, 2239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 866 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:39,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3341 Valid, 8698 Invalid, 2239 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [866 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-16 11:37:40,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244011 states.