./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20366b11-1182-42cd-a988-a4413d9082cc/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20366b11-1182-42cd-a988-a4413d9082cc/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20366b11-1182-42cd-a988-a4413d9082cc/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20366b11-1182-42cd-a988-a4413d9082cc/bin/uautomizer-TMbwUNV5ro/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_20366b11-1182-42cd-a988-a4413d9082cc/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20366b11-1182-42cd-a988-a4413d9082cc/bin/uautomizer-TMbwUNV5ro --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-8393723 [2022-11-18 20:28:34,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:28:34,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:28:34,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:28:34,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:28:34,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:28:34,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:28:34,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:28:34,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:28:34,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:28:34,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:28:34,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:28:34,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:28:34,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:28:34,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:28:34,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:28:34,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:28:34,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:28:34,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:28:34,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:28:34,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:28:34,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:28:34,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:28:34,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:28:34,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:28:34,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:28:34,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:28:34,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:28:34,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:28:34,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:28:34,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:28:34,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:28:34,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:28:34,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:28:34,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:28:34,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:28:34,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:28:34,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:28:34,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:28:34,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:28:34,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:28:34,896 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20366b11-1182-42cd-a988-a4413d9082cc/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 20:28:34,937 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:28:34,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:28:34,938 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:28:34,938 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:28:34,939 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:28:34,939 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:28:34,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:28:34,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:28:34,940 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:28:34,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:28:34,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:28:34,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:28:34,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:28:34,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:28:34,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:28:34,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:28:34,943 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:28:34,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:28:34,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:28:34,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:28:34,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:28:34,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:28:34,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:28:34,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:28:34,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:28:34,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:28:34,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:28:34,945 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:28:34,945 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:28:34,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:28:34,946 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_20366b11-1182-42cd-a988-a4413d9082cc/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20366b11-1182-42cd-a988-a4413d9082cc/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98c33dd4a8b9d397de123c51515d9ce94b0ce1f1fda3976c2bf2bd86eef00096 [2022-11-18 20:28:35,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:28:35,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:28:35,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:28:35,268 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:28:35,269 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:28:35,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20366b11-1182-42cd-a988-a4413d9082cc/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i [2022-11-18 20:28:35,352 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20366b11-1182-42cd-a988-a4413d9082cc/bin/uautomizer-TMbwUNV5ro/data/09cd9d87d/26a0231c42a5427694f64ff9ed6cc213/FLAG166923033 [2022-11-18 20:28:36,235 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:28:36,235 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20366b11-1182-42cd-a988-a4413d9082cc/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i [2022-11-18 20:28:36,296 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20366b11-1182-42cd-a988-a4413d9082cc/bin/uautomizer-TMbwUNV5ro/data/09cd9d87d/26a0231c42a5427694f64ff9ed6cc213/FLAG166923033 [2022-11-18 20:28:36,697 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20366b11-1182-42cd-a988-a4413d9082cc/bin/uautomizer-TMbwUNV5ro/data/09cd9d87d/26a0231c42a5427694f64ff9ed6cc213 [2022-11-18 20:28:36,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:28:36,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:28:36,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:28:36,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:28:36,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:28:36,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:28:36" (1/1) ... [2022-11-18 20:28:36,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24877ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:36, skipping insertion in model container [2022-11-18 20:28:36,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:28:36" (1/1) ... [2022-11-18 20:28:36,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:28:36,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:28:38,461 WARN L234 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_20366b11-1182-42cd-a988-a4413d9082cc/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i[231089,231102] [2022-11-18 20:28:38,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:28:38,681 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:28:39,091 WARN L234 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_20366b11-1182-42cd-a988-a4413d9082cc/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i[231089,231102] [2022-11-18 20:28:39,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:28:39,388 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:28:39,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:39 WrapperNode [2022-11-18 20:28:39,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:28:39,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:28:39,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:28:39,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:28:39,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:39" (1/1) ... [2022-11-18 20:28:39,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:39" (1/1) ... [2022-11-18 20:28:39,717 INFO L138 Inliner]: procedures = 206, calls = 3152, calls flagged for inlining = 89, calls inlined = 81, statements flattened = 8149 [2022-11-18 20:28:39,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:28:39,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:28:39,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:28:39,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:28:39,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:39" (1/1) ... [2022-11-18 20:28:39,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:39" (1/1) ... [2022-11-18 20:28:39,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:39" (1/1) ... [2022-11-18 20:28:39,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:39" (1/1) ... [2022-11-18 20:28:40,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:39" (1/1) ... [2022-11-18 20:28:40,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:39" (1/1) ... [2022-11-18 20:28:40,120 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:39" (1/1) ... [2022-11-18 20:28:40,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:39" (1/1) ... [2022-11-18 20:28:40,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:28:40,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:28:40,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:28:40,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:28:40,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:39" (1/1) ... [2022-11-18 20:28:40,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:28:40,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20366b11-1182-42cd-a988-a4413d9082cc/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:28:40,252 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20366b11-1182-42cd-a988-a4413d9082cc/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:28:40,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20366b11-1182-42cd-a988-a4413d9082cc/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:28:40,313 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_read_value [2022-11-18 20:28:40,313 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_read_value [2022-11-18 20:28:40,370 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_max [2022-11-18 20:28:40,370 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_max [2022-11-18 20:28:40,370 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_detect [2022-11-18 20:28:40,370 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_detect [2022-11-18 20:28:40,371 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_TO_REG [2022-11-18 20:28:40,371 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_TO_REG [2022-11-18 20:28:40,371 INFO L130 BoogieDeclarations]: Found specification of procedure store_beep [2022-11-18 20:28:40,371 INFO L138 BoogieDeclarations]: Found implementation of procedure store_beep [2022-11-18 20:28:40,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 20:28:40,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 20:28:40,371 INFO L130 BoogieDeclarations]: Found specification of procedure store_pwm [2022-11-18 20:28:40,371 INFO L138 BoogieDeclarations]: Found implementation of procedure store_pwm [2022-11-18 20:28:40,371 INFO L130 BoogieDeclarations]: Found specification of procedure store_in_min [2022-11-18 20:28:40,371 INFO L138 BoogieDeclarations]: Found implementation of procedure store_in_min [2022-11-18 20:28:40,372 INFO L130 BoogieDeclarations]: Found specification of procedure store_fan_div [2022-11-18 20:28:40,372 INFO L138 BoogieDeclarations]: Found implementation of procedure store_fan_div [2022-11-18 20:28:40,372 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_FROM_REG [2022-11-18 20:28:40,372 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_FROM_REG [2022-11-18 20:28:40,372 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-18 20:28:40,372 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-18 20:28:40,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 20:28:40,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 20:28:40,372 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-11-18 20:28:40,373 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-11-18 20:28:40,373 INFO L130 BoogieDeclarations]: Found specification of procedure show_sensor [2022-11-18 20:28:40,373 INFO L138 BoogieDeclarations]: Found implementation of procedure show_sensor [2022-11-18 20:28:40,373 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-18 20:28:40,373 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-18 20:28:40,373 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_min [2022-11-18 20:28:40,373 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_min [2022-11-18 20:28:40,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:28:40,373 INFO L130 BoogieDeclarations]: Found specification of procedure store_temp_max_hyst [2022-11-18 20:28:40,374 INFO L138 BoogieDeclarations]: Found implementation of procedure store_temp_max_hyst [2022-11-18 20:28:40,374 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2022-11-18 20:28:40,374 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2022-11-18 20:28:40,374 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2022-11-18 20:28:40,374 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2022-11-18 20:28:40,375 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2022-11-18 20:28:40,375 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2022-11-18 20:28:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_isa_unregister [2022-11-18 20:28:40,376 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_isa_unregister [2022-11-18 20:28:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure show_in [2022-11-18 20:28:40,376 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in [2022-11-18 20:28:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:28:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure show_beep [2022-11-18 20:28:40,377 INFO L138 BoogieDeclarations]: Found implementation of procedure show_beep [2022-11-18 20:28:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2022-11-18 20:28:40,377 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2022-11-18 20:28:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:28:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:28:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2022-11-18 20:28:40,378 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2022-11-18 20:28:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-18 20:28:40,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-18 20:28:40,379 INFO L130 BoogieDeclarations]: Found specification of procedure show_pwm [2022-11-18 20:28:40,380 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pwm [2022-11-18 20:28:40,380 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_FROM_REG [2022-11-18 20:28:40,381 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_FROM_REG [2022-11-18 20:28:40,381 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-18 20:28:40,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-18 20:28:40,381 INFO L130 BoogieDeclarations]: Found specification of procedure store_sensor [2022-11-18 20:28:40,381 INFO L138 BoogieDeclarations]: Found implementation of procedure store_sensor [2022-11-18 20:28:40,381 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_update_device [2022-11-18 20:28:40,382 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_update_device [2022-11-18 20:28:40,382 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_remove_files [2022-11-18 20:28:40,383 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_remove_files [2022-11-18 20:28:40,383 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan [2022-11-18 20:28:40,383 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan [2022-11-18 20:28:40,383 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-18 20:28:40,384 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-18 20:28:40,384 INFO L130 BoogieDeclarations]: Found specification of procedure store_in_max [2022-11-18 20:28:40,384 INFO L138 BoogieDeclarations]: Found implementation of procedure store_in_max [2022-11-18 20:28:40,385 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_word_swapped [2022-11-18 20:28:40,385 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_word_swapped [2022-11-18 20:28:40,385 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2022-11-18 20:28:40,385 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2022-11-18 20:28:40,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_w83781d_data [2022-11-18 20:28:40,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_w83781d_data [2022-11-18 20:28:40,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:28:40,386 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-18 20:28:40,386 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-18 20:28:40,387 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2022-11-18 20:28:40,387 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2022-11-18 20:28:40,387 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_word_swapped [2022-11-18 20:28:40,387 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_word_swapped [2022-11-18 20:28:40,387 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_div [2022-11-18 20:28:40,387 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_div [2022-11-18 20:28:40,388 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_TO_REG [2022-11-18 20:28:40,388 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_TO_REG [2022-11-18 20:28:40,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:28:40,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_w83781d_data [2022-11-18 20:28:40,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_w83781d_data [2022-11-18 20:28:40,389 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp [2022-11-18 20:28:40,389 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp [2022-11-18 20:28:40,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 20:28:40,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 20:28:40,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_w83781d_data [2022-11-18 20:28:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_w83781d_data [2022-11-18 20:28:40,392 INFO L130 BoogieDeclarations]: Found specification of procedure store_temp_max [2022-11-18 20:28:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure store_temp_max [2022-11-18 20:28:40,392 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_write_value [2022-11-18 20:28:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_write_value [2022-11-18 20:28:40,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:28:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_min [2022-11-18 20:28:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_min [2022-11-18 20:28:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:28:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure store_fan_min [2022-11-18 20:28:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure store_fan_min [2022-11-18 20:28:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:28:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_w83781d_data [2022-11-18 20:28:40,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_w83781d_data [2022-11-18 20:28:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max [2022-11-18 20:28:40,394 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max [2022-11-18 20:28:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max_hyst [2022-11-18 20:28:40,395 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max_hyst [2022-11-18 20:28:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-11-18 20:28:40,396 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-11-18 20:28:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:28:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2022-11-18 20:28:40,399 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2022-11-18 20:28:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:28:40,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:28:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-18 20:28:40,403 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-18 20:28:41,528 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:28:41,535 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:28:50,494 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:28:50,524 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:28:50,525 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:28:50,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:28:50 BoogieIcfgContainer [2022-11-18 20:28:50,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:28:50,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:28:50,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:28:50,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:28:50,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:28:36" (1/3) ... [2022-11-18 20:28:50,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c06162c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:28:50, skipping insertion in model container [2022-11-18 20:28:50,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:39" (2/3) ... [2022-11-18 20:28:50,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c06162c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:28:50, skipping insertion in model container [2022-11-18 20:28:50,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:28:50" (3/3) ... [2022-11-18 20:28:50,543 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i [2022-11-18 20:28:50,565 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:28:50,565 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:28:50,674 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:28:50,681 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;@1f417fe6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:28:50,682 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:28:50,694 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) [2022-11-18 20:28:50,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 20:28:50,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:28:50,720 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] [2022-11-18 20:28:50,721 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:28:50,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:50,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1006007787, now seen corresponding path program 1 times [2022-11-18 20:28:50,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:50,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747510373] [2022-11-18 20:28:50,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:50,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:52,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:28:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:52,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:28:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:52,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:52,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:52,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747510373] [2022-11-18 20:28:52,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747510373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:52,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:52,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:28:52,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610062989] [2022-11-18 20:28:52,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:52,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:28:52,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:52,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:28:52,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:28:52,137 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) [2022-11-18 20:28:56,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:28:56,755 INFO L93 Difference]: Finished difference Result 5874 states and 9911 transitions. [2022-11-18 20:28:56,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:28:56,758 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 [2022-11-18 20:28:56,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:28:56,801 INFO L225 Difference]: With dead ends: 5874 [2022-11-18 20:28:56,801 INFO L226 Difference]: Without dead ends: 3911 [2022-11-18 20:28:56,839 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 [2022-11-18 20:28:56,842 INFO L413 NwaCegarLoop]: 3644 mSDtfsCounter, 3108 mSDsluCounter, 5264 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 849 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3355 SdHoareTripleChecker+Valid, 8908 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 849 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:28:56,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3355 Valid, 8908 Invalid, 2226 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [849 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-18 20:28:56,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3911 states. [2022-11-18 20:28:57,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3911 to 3875. [2022-11-18 20:28:57,192 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) [2022-11-18 20:28:57,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3875 states to 3875 states and 6123 transitions. [2022-11-18 20:28:57,230 INFO L78 Accepts]: Start accepts. Automaton has 3875 states and 6123 transitions. Word has length 28 [2022-11-18 20:28:57,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:28:57,231 INFO L495 AbstractCegarLoop]: Abstraction has 3875 states and 6123 transitions. [2022-11-18 20:28:57,231 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) [2022-11-18 20:28:57,232 INFO L276 IsEmpty]: Start isEmpty. Operand 3875 states and 6123 transitions. [2022-11-18 20:28:57,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 20:28:57,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:28:57,238 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] [2022-11-18 20:28:57,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:28:57,239 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:28:57,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:57,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1828069062, now seen corresponding path program 1 times [2022-11-18 20:28:57,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:57,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004692038] [2022-11-18 20:28:57,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:57,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:57,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:57,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:28:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:57,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:28:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:57,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:57,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:57,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004692038] [2022-11-18 20:28:57,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004692038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:57,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:57,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:28:57,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634837952] [2022-11-18 20:28:57,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:57,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:28:57,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:57,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:28:57,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:28:57,905 INFO L87 Difference]: Start difference. First operand 3875 states and 6123 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) [2022-11-18 20:29:02,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:29:02,147 INFO L93 Difference]: Finished difference Result 11631 states and 18437 transitions. [2022-11-18 20:29:02,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:29:02,147 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 [2022-11-18 20:29:02,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:29:02,198 INFO L225 Difference]: With dead ends: 11631 [2022-11-18 20:29:02,198 INFO L226 Difference]: Without dead ends: 7759 [2022-11-18 20:29:02,221 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 [2022-11-18 20:29:02,222 INFO L413 NwaCegarLoop]: 3661 mSDtfsCounter, 3094 mSDsluCounter, 5287 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 847 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3341 SdHoareTripleChecker+Valid, 8948 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 847 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:29:02,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3341 Valid, 8948 Invalid, 2227 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [847 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-18 20:29:02,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7759 states. [2022-11-18 20:29:02,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7759 to 7707. [2022-11-18 20:29:02,565 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) [2022-11-18 20:29:02,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7707 states to 7707 states and 12184 transitions. [2022-11-18 20:29:02,612 INFO L78 Accepts]: Start accepts. Automaton has 7707 states and 12184 transitions. Word has length 32 [2022-11-18 20:29:02,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:29:02,613 INFO L495 AbstractCegarLoop]: Abstraction has 7707 states and 12184 transitions. [2022-11-18 20:29:02,613 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) [2022-11-18 20:29:02,613 INFO L276 IsEmpty]: Start isEmpty. Operand 7707 states and 12184 transitions. [2022-11-18 20:29:02,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-18 20:29:02,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:29:02,615 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] [2022-11-18 20:29:02,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:29:02,619 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:29:02,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:29:02,620 INFO L85 PathProgramCache]: Analyzing trace with hash 343352040, now seen corresponding path program 1 times [2022-11-18 20:29:02,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:29:02,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393107696] [2022-11-18 20:29:02,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:29:02,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:29:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:03,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:29:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:03,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:03,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:29:03,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:29:03,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393107696] [2022-11-18 20:29:03,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393107696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:29:03,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:29:03,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:29:03,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337918428] [2022-11-18 20:29:03,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:29:03,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:29:03,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:29:03,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:29:03,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:29:03,409 INFO L87 Difference]: Start difference. First operand 7707 states and 12184 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) [2022-11-18 20:29:07,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:29:07,606 INFO L93 Difference]: Finished difference Result 23139 states and 36694 transitions. [2022-11-18 20:29:07,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:29:07,606 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 [2022-11-18 20:29:07,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:29:07,733 INFO L225 Difference]: With dead ends: 23139 [2022-11-18 20:29:07,734 INFO L226 Difference]: Without dead ends: 15435 [2022-11-18 20:29:07,789 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 [2022-11-18 20:29:07,792 INFO L413 NwaCegarLoop]: 3647 mSDtfsCounter, 3092 mSDsluCounter, 5259 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 846 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3353 SdHoareTripleChecker+Valid, 8906 SdHoareTripleChecker+Invalid, 2225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 846 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:29:07,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3353 Valid, 8906 Invalid, 2225 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [846 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-18 20:29:07,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15435 states. [2022-11-18 20:29:08,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15435 to 15351. [2022-11-18 20:29:08,669 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) [2022-11-18 20:29:08,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15351 states to 15351 states and 24270 transitions. [2022-11-18 20:29:08,784 INFO L78 Accepts]: Start accepts. Automaton has 15351 states and 24270 transitions. Word has length 36 [2022-11-18 20:29:08,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:29:08,785 INFO L495 AbstractCegarLoop]: Abstraction has 15351 states and 24270 transitions. [2022-11-18 20:29:08,786 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) [2022-11-18 20:29:08,786 INFO L276 IsEmpty]: Start isEmpty. Operand 15351 states and 24270 transitions. [2022-11-18 20:29:08,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 20:29:08,791 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:29:08,791 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] [2022-11-18 20:29:08,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:29:08,791 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:29:08,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:29:08,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1639797615, now seen corresponding path program 1 times [2022-11-18 20:29:08,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:29:08,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098106878] [2022-11-18 20:29:08,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:29:08,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:29:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:09,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:29:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:09,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:09,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:29:09,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:29:09,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098106878] [2022-11-18 20:29:09,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098106878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:29:09,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:29:09,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:29:09,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505266388] [2022-11-18 20:29:09,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:29:09,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:29:09,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:29:09,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:29:09,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:29:09,384 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) [2022-11-18 20:29:13,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:29:13,632 INFO L93 Difference]: Finished difference Result 46127 states and 73156 transitions. [2022-11-18 20:29:13,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:29:13,633 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 [2022-11-18 20:29:13,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:29:13,797 INFO L225 Difference]: With dead ends: 46127 [2022-11-18 20:29:13,798 INFO L226 Difference]: Without dead ends: 30779 [2022-11-18 20:29:13,896 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 [2022-11-18 20:29:13,897 INFO L413 NwaCegarLoop]: 3693 mSDtfsCounter, 3100 mSDsluCounter, 5319 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 844 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3347 SdHoareTripleChecker+Valid, 9012 SdHoareTripleChecker+Invalid, 2221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 844 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:29:13,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3347 Valid, 9012 Invalid, 2221 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [844 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-18 20:29:13,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30779 states. [2022-11-18 20:29:15,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30779 to 30631. [2022-11-18 20:29:15,695 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) [2022-11-18 20:29:15,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30631 states to 30631 states and 48426 transitions. [2022-11-18 20:29:15,936 INFO L78 Accepts]: Start accepts. Automaton has 30631 states and 48426 transitions. Word has length 32 [2022-11-18 20:29:15,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:29:15,937 INFO L495 AbstractCegarLoop]: Abstraction has 30631 states and 48426 transitions. [2022-11-18 20:29:15,937 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) [2022-11-18 20:29:15,938 INFO L276 IsEmpty]: Start isEmpty. Operand 30631 states and 48426 transitions. [2022-11-18 20:29:15,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 20:29:15,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:29:15,939 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] [2022-11-18 20:29:15,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:29:15,940 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:29:15,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:29:15,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1641965733, now seen corresponding path program 1 times [2022-11-18 20:29:15,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:29:15,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280070273] [2022-11-18 20:29:15,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:29:15,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:29:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:16,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 20:29:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:16,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:16,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:29:16,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:29:16,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280070273] [2022-11-18 20:29:16,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280070273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:29:16,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:29:16,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:29:16,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302901984] [2022-11-18 20:29:16,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:29:16,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:29:16,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:29:16,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:29:16,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:29:16,628 INFO L87 Difference]: Start difference. First operand 30631 states and 48426 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-18 20:29:22,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:29:22,355 INFO L93 Difference]: Finished difference Result 92047 states and 145976 transitions. [2022-11-18 20:29:22,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:29:22,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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 29 [2022-11-18 20:29:22,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:29:22,688 INFO L225 Difference]: With dead ends: 92047 [2022-11-18 20:29:22,689 INFO L226 Difference]: Without dead ends: 61419 [2022-11-18 20:29:23,009 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 [2022-11-18 20:29:23,010 INFO L413 NwaCegarLoop]: 3704 mSDtfsCounter, 3103 mSDsluCounter, 5330 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 843 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3349 SdHoareTripleChecker+Valid, 9034 SdHoareTripleChecker+Invalid, 2220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 843 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:29:23,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3349 Valid, 9034 Invalid, 2220 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [843 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-18 20:29:23,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61419 states. [2022-11-18 20:29:26,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61419 to 61143. [2022-11-18 20:29:26,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61143 states, 46077 states have (on average 1.521648544827137) internal successors, (70113), 46148 states have internal predecessors, (70113), 13273 states have call successors, (13273), 1793 states have call predecessors, (13273), 1792 states have return successors, (13264), 13233 states have call predecessors, (13264), 13264 states have call successors, (13264) [2022-11-18 20:29:27,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61143 states to 61143 states and 96650 transitions. [2022-11-18 20:29:27,191 INFO L78 Accepts]: Start accepts. Automaton has 61143 states and 96650 transitions. Word has length 29 [2022-11-18 20:29:27,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:29:27,192 INFO L495 AbstractCegarLoop]: Abstraction has 61143 states and 96650 transitions. [2022-11-18 20:29:27,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-18 20:29:27,192 INFO L276 IsEmpty]: Start isEmpty. Operand 61143 states and 96650 transitions. [2022-11-18 20:29:27,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-18 20:29:27,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:29:27,194 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] [2022-11-18 20:29:27,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:29:27,194 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:29:27,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:29:27,195 INFO L85 PathProgramCache]: Analyzing trace with hash -282647496, now seen corresponding path program 1 times [2022-11-18 20:29:27,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:29:27,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753321409] [2022-11-18 20:29:27,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:29:27,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:29:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:27,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:29:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:27,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:27,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:29:27,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:29:27,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753321409] [2022-11-18 20:29:27,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753321409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:29:27,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:29:27,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:29:27,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163305876] [2022-11-18 20:29:27,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:29:27,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:29:27,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:29:27,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:29:27,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:29:27,877 INFO L87 Difference]: Start difference. First operand 61143 states and 96650 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) [2022-11-18 20:29:35,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:29:35,175 INFO L93 Difference]: Finished difference Result 183743 states and 291352 transitions. [2022-11-18 20:29:35,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:29:35,176 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 [2022-11-18 20:29:35,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:29:36,346 INFO L225 Difference]: With dead ends: 183743 [2022-11-18 20:29:36,346 INFO L226 Difference]: Without dead ends: 122603 [2022-11-18 20:29:36,706 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 [2022-11-18 20:29:36,707 INFO L413 NwaCegarLoop]: 3697 mSDtfsCounter, 3098 mSDsluCounter, 5306 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3345 SdHoareTripleChecker+Valid, 9003 SdHoareTripleChecker+Invalid, 2219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 842 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:29:36,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3345 Valid, 9003 Invalid, 2219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [842 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-18 20:29:36,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122603 states. [2022-11-18 20:29:41,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122603 to 122071. [2022-11-18 20:29:41,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122071 states, 91981 states have (on average 1.521194594535828) internal successors, (139921), 92116 states have internal predecessors, (139921), 26505 states have call successors, (26505), 3585 states have call predecessors, (26505), 3584 states have return successors, (26496), 26433 states have call predecessors, (26496), 26496 states have call successors, (26496) [2022-11-18 20:29:42,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122071 states to 122071 states and 192922 transitions. [2022-11-18 20:29:42,921 INFO L78 Accepts]: Start accepts. Automaton has 122071 states and 192922 transitions. Word has length 34 [2022-11-18 20:29:42,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:29:42,922 INFO L495 AbstractCegarLoop]: Abstraction has 122071 states and 192922 transitions. [2022-11-18 20:29:42,922 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) [2022-11-18 20:29:42,922 INFO L276 IsEmpty]: Start isEmpty. Operand 122071 states and 192922 transitions. [2022-11-18 20:29:42,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-18 20:29:42,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:29:42,923 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] [2022-11-18 20:29:42,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:29:42,924 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:29:42,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:29:42,925 INFO L85 PathProgramCache]: Analyzing trace with hash -753113751, now seen corresponding path program 1 times [2022-11-18 20:29:42,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:29:42,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194333346] [2022-11-18 20:29:42,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:29:42,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:29:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:43,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:29:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:43,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:43,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:29:43,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:29:43,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194333346] [2022-11-18 20:29:43,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194333346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:29:43,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:29:43,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:29:43,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453795461] [2022-11-18 20:29:43,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:29:43,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:29:43,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:29:43,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:29:43,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:29:43,438 INFO L87 Difference]: Start difference. First operand 122071 states and 192922 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) [2022-11-18 20:29:55,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:29:55,412 INFO L93 Difference]: Finished difference Result 366591 states and 581128 transitions. [2022-11-18 20:29:55,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:29:55,413 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 [2022-11-18 20:29:55,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:29:57,096 INFO L225 Difference]: With dead ends: 366591 [2022-11-18 20:29:57,096 INFO L226 Difference]: Without dead ends: 244523 [2022-11-18 20:29:58,232 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 [2022-11-18 20:29:58,233 INFO L413 NwaCegarLoop]: 3606 mSDtfsCounter, 3151 mSDsluCounter, 5264 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 883 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3411 SdHoareTripleChecker+Valid, 8870 SdHoareTripleChecker+Invalid, 2187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 883 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:29:58,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3411 Valid, 8870 Invalid, 2187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [883 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-18 20:29:58,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244523 states.