./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--w83792d.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_815c28d8-99a8-4d60-8fc1-f471f69a514c/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815c28d8-99a8-4d60-8fc1-f471f69a514c/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_815c28d8-99a8-4d60-8fc1-f471f69a514c/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815c28d8-99a8-4d60-8fc1-f471f69a514c/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83792d.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815c28d8-99a8-4d60-8fc1-f471f69a514c/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_815c28d8-99a8-4d60-8fc1-f471f69a514c/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 e87ce4631152faee62991e43ea4262d58cd06d3a6c93a184b0775dd51465b70f --- 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 11:23:07,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:23:07,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:23:07,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:23:07,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:23:07,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:23:07,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:23:07,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:23:07,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:23:07,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:23:07,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:23:07,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:23:07,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:23:07,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:23:07,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:23:07,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:23:07,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:23:07,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:23:07,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:23:07,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:23:07,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:23:07,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:23:07,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:23:07,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:23:07,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:23:07,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:23:07,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:23:07,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:23:07,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:23:07,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:23:07,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:23:07,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:23:07,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:23:07,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:23:07,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:23:07,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:23:07,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:23:07,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:23:07,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:23:07,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:23:07,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:23:07,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815c28d8-99a8-4d60-8fc1-f471f69a514c/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:23:07,695 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:23:07,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:23:07,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:23:07,700 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:23:07,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:23:07,701 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:23:07,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:23:07,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:23:07,703 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:23:07,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:23:07,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:23:07,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:23:07,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:23:07,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:23:07,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:23:07,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:23:07,706 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:23:07,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:23:07,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:23:07,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:23:07,707 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:23:07,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:23:07,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:23:07,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:23:07,708 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:23:07,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:23:07,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:23:07,711 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:23:07,711 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:23:07,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:23:07,712 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_815c28d8-99a8-4d60-8fc1-f471f69a514c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815c28d8-99a8-4d60-8fc1-f471f69a514c/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e87ce4631152faee62991e43ea4262d58cd06d3a6c93a184b0775dd51465b70f [2022-11-16 11:23:07,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:23:08,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:23:08,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:23:08,039 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:23:08,040 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:23:08,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815c28d8-99a8-4d60-8fc1-f471f69a514c/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83792d.ko-main.cil.out.i [2022-11-16 11:23:08,115 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815c28d8-99a8-4d60-8fc1-f471f69a514c/bin/uautomizer-tPACEb0tL8/data/7222e61eb/d2bbabad549c4866a1c2411135562043/FLAGc8b78e673 [2022-11-16 11:23:08,868 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:23:08,868 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815c28d8-99a8-4d60-8fc1-f471f69a514c/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83792d.ko-main.cil.out.i [2022-11-16 11:23:08,921 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815c28d8-99a8-4d60-8fc1-f471f69a514c/bin/uautomizer-tPACEb0tL8/data/7222e61eb/d2bbabad549c4866a1c2411135562043/FLAGc8b78e673 [2022-11-16 11:23:09,426 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815c28d8-99a8-4d60-8fc1-f471f69a514c/bin/uautomizer-tPACEb0tL8/data/7222e61eb/d2bbabad549c4866a1c2411135562043 [2022-11-16 11:23:09,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:23:09,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:23:09,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:23:09,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:23:09,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:23:09,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:23:09" (1/1) ... [2022-11-16 11:23:09,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3503a5b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:09, skipping insertion in model container [2022-11-16 11:23:09,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:23:09" (1/1) ... [2022-11-16 11:23:09,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:23:09,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:23:11,171 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_815c28d8-99a8-4d60-8fc1-f471f69a514c/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83792d.ko-main.cil.out.i[270348,270361] [2022-11-16 11:23:11,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:23:11,452 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:23:11,935 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_815c28d8-99a8-4d60-8fc1-f471f69a514c/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83792d.ko-main.cil.out.i[270348,270361] [2022-11-16 11:23:11,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:23:12,395 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:23:12,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:12 WrapperNode [2022-11-16 11:23:12,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:23:12,398 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:23:12,398 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:23:12,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:23:12,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:12" (1/1) ... [2022-11-16 11:23:12,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:12" (1/1) ... [2022-11-16 11:23:12,983 INFO L138 Inliner]: procedures = 176, calls = 3879, calls flagged for inlining = 73, calls inlined = 65, statements flattened = 9646 [2022-11-16 11:23:12,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:23:12,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:23:12,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:23:12,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:23:12,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:12" (1/1) ... [2022-11-16 11:23:12,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:12" (1/1) ... [2022-11-16 11:23:13,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:12" (1/1) ... [2022-11-16 11:23:13,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:12" (1/1) ... [2022-11-16 11:23:13,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:12" (1/1) ... [2022-11-16 11:23:13,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:12" (1/1) ... [2022-11-16 11:23:13,290 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:12" (1/1) ... [2022-11-16 11:23:13,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:12" (1/1) ... [2022-11-16 11:23:13,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:23:13,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:23:13,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:23:13,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:23:13,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:12" (1/1) ... [2022-11-16 11:23:13,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:23:13,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815c28d8-99a8-4d60-8fc1-f471f69a514c/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:23:13,428 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815c28d8-99a8-4d60-8fc1-f471f69a514c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:23:13,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815c28d8-99a8-4d60-8fc1-f471f69a514c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:23:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan [2022-11-16 11:23:13,485 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan [2022-11-16 11:23:13,485 INFO L130 BoogieDeclarations]: Found specification of procedure store_in_max [2022-11-16 11:23:13,485 INFO L138 BoogieDeclarations]: Found implementation of procedure store_in_max [2022-11-16 11:23:13,485 INFO L130 BoogieDeclarations]: Found specification of procedure w83792d_update_device [2022-11-16 11:23:13,485 INFO L138 BoogieDeclarations]: Found implementation of procedure w83792d_update_device [2022-11-16 11:23:13,485 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_max [2022-11-16 11:23:13,486 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_max [2022-11-16 11:23:13,486 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2022-11-16 11:23:13,486 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2022-11-16 11:23:13,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:23:13,486 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_TO_REG [2022-11-16 11:23:13,486 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_TO_REG [2022-11-16 11:23:13,486 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-16 11:23:13,487 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-16 11:23:13,487 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2022-11-16 11:23:13,487 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2022-11-16 11:23:13,487 INFO L130 BoogieDeclarations]: Found specification of procedure store_tolerance [2022-11-16 11:23:13,487 INFO L138 BoogieDeclarations]: Found implementation of procedure store_tolerance [2022-11-16 11:23:13,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_w83792d_data [2022-11-16 11:23:13,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_w83792d_data [2022-11-16 11:23:13,488 INFO L130 BoogieDeclarations]: Found specification of procedure show_pwmenable [2022-11-16 11:23:13,488 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pwmenable [2022-11-16 11:23:13,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 11:23:13,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 11:23:13,488 INFO L130 BoogieDeclarations]: Found specification of procedure store_pwm [2022-11-16 11:23:13,488 INFO L138 BoogieDeclarations]: Found implementation of procedure store_pwm [2022-11-16 11:23:13,488 INFO L130 BoogieDeclarations]: Found specification of procedure store_in_min [2022-11-16 11:23:13,489 INFO L138 BoogieDeclarations]: Found implementation of procedure store_in_min [2022-11-16 11:23:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_w83792d_data [2022-11-16 11:23:13,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_w83792d_data [2022-11-16 11:23:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp1 [2022-11-16 11:23:13,489 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp1 [2022-11-16 11:23:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure store_fan_div [2022-11-16 11:23:13,489 INFO L138 BoogieDeclarations]: Found implementation of procedure store_fan_div [2022-11-16 11:23:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_div [2022-11-16 11:23:13,490 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_div [2022-11-16 11:23:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure show_tolerance [2022-11-16 11:23:13,491 INFO L138 BoogieDeclarations]: Found implementation of procedure show_tolerance [2022-11-16 11:23:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure show_pwm_mode [2022-11-16 11:23:13,491 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pwm_mode [2022-11-16 11:23:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:23:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 11:23:13,491 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 11:23:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 11:23:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 11:23:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure in_count_from_reg [2022-11-16 11:23:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure in_count_from_reg [2022-11-16 11:23:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 11:23:13,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 11:23:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:23:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-16 11:23:13,493 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-16 11:23:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_min [2022-11-16 11:23:13,494 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_min [2022-11-16 11:23:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:23:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure store_sf2_level [2022-11-16 11:23:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure store_sf2_level [2022-11-16 11:23:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure store_temp1 [2022-11-16 11:23:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure store_temp1 [2022-11-16 11:23:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure store_temp23 [2022-11-16 11:23:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure store_temp23 [2022-11-16 11:23:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure store_fan_min [2022-11-16 11:23:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure store_fan_min [2022-11-16 11:23:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:23:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_min [2022-11-16 11:23:13,498 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_min [2022-11-16 11:23:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:23:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure show_sf2_point [2022-11-16 11:23:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure show_sf2_point [2022-11-16 11:23:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure w83792d_write_value [2022-11-16 11:23:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure w83792d_write_value [2022-11-16 11:23:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2022-11-16 11:23:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2022-11-16 11:23:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure show_thermal_cruise [2022-11-16 11:23:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure show_thermal_cruise [2022-11-16 11:23:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp23 [2022-11-16 11:23:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp23 [2022-11-16 11:23:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2022-11-16 11:23:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2022-11-16 11:23:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure show_in [2022-11-16 11:23:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in [2022-11-16 11:23:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:23:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure w83792d_detect [2022-11-16 11:23:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure w83792d_detect [2022-11-16 11:23:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure store_pwm_mode [2022-11-16 11:23:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure store_pwm_mode [2022-11-16 11:23:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2022-11-16 11:23:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2022-11-16 11:23:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:23:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-11-16 11:23:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-11-16 11:23:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 11:23:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure store_pwmenable [2022-11-16 11:23:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure store_pwmenable [2022-11-16 11:23:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure w83792d_read_value [2022-11-16 11:23:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure w83792d_read_value [2022-11-16 11:23:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2022-11-16 11:23:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2022-11-16 11:23:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure show_pwm [2022-11-16 11:23:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pwm [2022-11-16 11:23:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure show_sf2_level [2022-11-16 11:23:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure show_sf2_level [2022-11-16 11:23:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_new_dummy [2022-11-16 11:23:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_new_dummy [2022-11-16 11:23:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure store_thermal_cruise [2022-11-16 11:23:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure store_thermal_cruise [2022-11-16 11:23:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:23:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure store_sf2_point [2022-11-16 11:23:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure store_sf2_point [2022-11-16 11:23:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:23:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:23:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 11:23:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 11:23:14,798 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:23:14,802 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:23:27,278 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:23:27,296 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:23:27,297 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:23:27,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:23:27 BoogieIcfgContainer [2022-11-16 11:23:27,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:23:27,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:23:27,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:23:27,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:23:27,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:23:09" (1/3) ... [2022-11-16 11:23:27,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@432783f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:23:27, skipping insertion in model container [2022-11-16 11:23:27,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:12" (2/3) ... [2022-11-16 11:23:27,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@432783f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:23:27, skipping insertion in model container [2022-11-16 11:23:27,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:23:27" (3/3) ... [2022-11-16 11:23:27,311 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83792d.ko-main.cil.out.i [2022-11-16 11:23:27,332 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:23:27,332 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:23:27,533 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:23:27,541 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;@3c82fe8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:23:27,541 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:23:27,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 2129 states, 1646 states have (on average 1.543134872417983) internal successors, (2540), 1653 states have internal predecessors, (2540), 430 states have call successors, (430), 51 states have call predecessors, (430), 51 states have return successors, (430), 430 states have call predecessors, (430), 430 states have call successors, (430) [2022-11-16 11:23:27,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:23:27,571 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:27,572 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 11:23:27,573 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:23:27,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:27,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1765658404, now seen corresponding path program 1 times [2022-11-16 11:23:27,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:27,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983239176] [2022-11-16 11:23:27,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:27,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:29,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-16 11:23:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:29,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:23:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:29,336 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 11:23:29,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:29,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983239176] [2022-11-16 11:23:29,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983239176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:29,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:29,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:23:29,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715124430] [2022-11-16 11:23:29,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:29,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:23:29,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:29,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:23:29,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:23:29,402 INFO L87 Difference]: Start difference. First operand has 2129 states, 1646 states have (on average 1.543134872417983) internal successors, (2540), 1653 states have internal predecessors, (2540), 430 states have call successors, (430), 51 states have call predecessors, (430), 51 states have return successors, (430), 430 states have call predecessors, (430), 430 states have call successors, (430) 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 11:23:34,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:34,046 INFO L93 Difference]: Finished difference Result 6389 states and 10753 transitions. [2022-11-16 11:23:34,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:23:34,049 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 11:23:34,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:34,087 INFO L225 Difference]: With dead ends: 6389 [2022-11-16 11:23:34,088 INFO L226 Difference]: Without dead ends: 4255 [2022-11-16 11:23:34,115 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 11:23:34,118 INFO L413 NwaCegarLoop]: 3669 mSDtfsCounter, 3371 mSDsluCounter, 5840 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 905 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3588 SdHoareTripleChecker+Valid, 9509 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 905 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:34,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3588 Valid, 9509 Invalid, 1870 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [905 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-16 11:23:34,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4255 states. [2022-11-16 11:23:34,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4255 to 4222. [2022-11-16 11:23:34,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4222 states, 3268 states have (on average 1.5431456548347613) internal successors, (5043), 3273 states have internal predecessors, (5043), 853 states have call successors, (853), 101 states have call predecessors, (853), 100 states have return successors, (847), 847 states have call predecessors, (847), 847 states have call successors, (847) [2022-11-16 11:23:34,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4222 states to 4222 states and 6743 transitions. [2022-11-16 11:23:34,418 INFO L78 Accepts]: Start accepts. Automaton has 4222 states and 6743 transitions. Word has length 32 [2022-11-16 11:23:34,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:34,418 INFO L495 AbstractCegarLoop]: Abstraction has 4222 states and 6743 transitions. [2022-11-16 11:23:34,419 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 11:23:34,419 INFO L276 IsEmpty]: Start isEmpty. Operand 4222 states and 6743 transitions. [2022-11-16 11:23:34,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:23:34,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:34,423 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] [2022-11-16 11:23:34,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:23:34,423 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:23:34,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:34,424 INFO L85 PathProgramCache]: Analyzing trace with hash -969754401, now seen corresponding path program 1 times [2022-11-16 11:23:34,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:34,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361796718] [2022-11-16 11:23:34,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:34,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:35,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:23:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:35,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:23:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:35,586 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 11:23:35,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:35,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361796718] [2022-11-16 11:23:35,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361796718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:35,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:35,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:23:35,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513078529] [2022-11-16 11:23:35,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:35,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:23:35,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:35,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:23:35,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:23:35,595 INFO L87 Difference]: Start difference. First operand 4222 states and 6743 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (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 11:23:39,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:39,623 INFO L93 Difference]: Finished difference Result 12684 states and 20319 transitions. [2022-11-16 11:23:39,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:23:39,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (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 33 [2022-11-16 11:23:39,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:39,696 INFO L225 Difference]: With dead ends: 12684 [2022-11-16 11:23:39,697 INFO L226 Difference]: Without dead ends: 8465 [2022-11-16 11:23:39,724 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 11:23:39,725 INFO L413 NwaCegarLoop]: 3704 mSDtfsCounter, 3366 mSDsluCounter, 5884 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3568 SdHoareTripleChecker+Valid, 9588 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 904 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:39,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3568 Valid, 9588 Invalid, 1869 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [904 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-16 11:23:39,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8465 states. [2022-11-16 11:23:40,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8465 to 8414. [2022-11-16 11:23:40,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8414 states, 6515 states have (on average 1.543207981580967) internal successors, (10054), 6520 states have internal predecessors, (10054), 1698 states have call successors, (1698), 201 states have call predecessors, (1698), 200 states have return successors, (1692), 1692 states have call predecessors, (1692), 1692 states have call successors, (1692) [2022-11-16 11:23:40,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8414 states to 8414 states and 13444 transitions. [2022-11-16 11:23:40,190 INFO L78 Accepts]: Start accepts. Automaton has 8414 states and 13444 transitions. Word has length 33 [2022-11-16 11:23:40,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:40,190 INFO L495 AbstractCegarLoop]: Abstraction has 8414 states and 13444 transitions. [2022-11-16 11:23:40,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (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 11:23:40,191 INFO L276 IsEmpty]: Start isEmpty. Operand 8414 states and 13444 transitions. [2022-11-16 11:23:40,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-16 11:23:40,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:40,197 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 11:23:40,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:23:40,198 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:23:40,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:40,198 INFO L85 PathProgramCache]: Analyzing trace with hash 801378600, now seen corresponding path program 1 times [2022-11-16 11:23:40,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:40,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705398352] [2022-11-16 11:23:40,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:40,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:41,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-16 11:23:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:41,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:23:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:41,206 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 11:23:41,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:41,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705398352] [2022-11-16 11:23:41,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705398352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:41,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:41,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:23:41,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270837207] [2022-11-16 11:23:41,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:41,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:23:41,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:41,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:23:41,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:23:41,209 INFO L87 Difference]: Start difference. First operand 8414 states and 13444 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 11:23:45,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:45,232 INFO L93 Difference]: Finished difference Result 25284 states and 40518 transitions. [2022-11-16 11:23:45,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:23:45,233 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 11:23:45,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:45,384 INFO L225 Difference]: With dead ends: 25284 [2022-11-16 11:23:45,385 INFO L226 Difference]: Without dead ends: 16873 [2022-11-16 11:23:45,448 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 11:23:45,452 INFO L413 NwaCegarLoop]: 3699 mSDtfsCounter, 3365 mSDsluCounter, 5863 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 903 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3567 SdHoareTripleChecker+Valid, 9562 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 903 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:45,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3567 Valid, 9562 Invalid, 1868 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [903 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-16 11:23:45,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16873 states. [2022-11-16 11:23:46,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16873 to 16786. [2022-11-16 11:23:46,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16786 states, 12999 states have (on average 1.5430417724440342) internal successors, (20058), 13004 states have internal predecessors, (20058), 3386 states have call successors, (3386), 401 states have call predecessors, (3386), 400 states have return successors, (3380), 3380 states have call predecessors, (3380), 3380 states have call successors, (3380) [2022-11-16 11:23:46,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16786 states to 16786 states and 26824 transitions. [2022-11-16 11:23:46,609 INFO L78 Accepts]: Start accepts. Automaton has 16786 states and 26824 transitions. Word has length 34 [2022-11-16 11:23:46,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:46,610 INFO L495 AbstractCegarLoop]: Abstraction has 16786 states and 26824 transitions. [2022-11-16 11:23:46,611 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 11:23:46,612 INFO L276 IsEmpty]: Start isEmpty. Operand 16786 states and 26824 transitions. [2022-11-16 11:23:46,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-16 11:23:46,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:46,616 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 11:23:46,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:23:46,616 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:23:46,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:46,617 INFO L85 PathProgramCache]: Analyzing trace with hash -922096465, now seen corresponding path program 1 times [2022-11-16 11:23:46,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:46,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425170326] [2022-11-16 11:23:46,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:46,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:47,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:23:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:47,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:23:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:47,591 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 11:23:47,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:47,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425170326] [2022-11-16 11:23:47,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425170326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:47,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:47,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:23:47,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195027197] [2022-11-16 11:23:47,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:47,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:23:47,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:47,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:23:47,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:23:47,594 INFO L87 Difference]: Start difference. First operand 16786 states and 26824 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 11:23:51,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:51,920 INFO L93 Difference]: Finished difference Result 50416 states and 80794 transitions. [2022-11-16 11:23:51,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:23:51,921 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 11:23:51,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:52,124 INFO L225 Difference]: With dead ends: 50416 [2022-11-16 11:23:52,124 INFO L226 Difference]: Without dead ends: 33633 [2022-11-16 11:23:52,208 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 11:23:52,210 INFO L413 NwaCegarLoop]: 3707 mSDtfsCounter, 3357 mSDsluCounter, 5882 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 901 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3575 SdHoareTripleChecker+Valid, 9589 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 901 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:52,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3575 Valid, 9589 Invalid, 1869 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [901 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-16 11:23:52,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33633 states. [2022-11-16 11:23:54,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33633 to 33474. [2022-11-16 11:23:54,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33474 states, 25923 states have (on average 1.5426455271380628) internal successors, (39990), 25928 states have internal predecessors, (39990), 6750 states have call successors, (6750), 801 states have call predecessors, (6750), 800 states have return successors, (6744), 6744 states have call predecessors, (6744), 6744 states have call successors, (6744) [2022-11-16 11:23:54,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33474 states to 33474 states and 53484 transitions. [2022-11-16 11:23:54,265 INFO L78 Accepts]: Start accepts. Automaton has 33474 states and 53484 transitions. Word has length 36 [2022-11-16 11:23:54,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:54,265 INFO L495 AbstractCegarLoop]: Abstraction has 33474 states and 53484 transitions. [2022-11-16 11:23:54,266 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 11:23:54,266 INFO L276 IsEmpty]: Start isEmpty. Operand 33474 states and 53484 transitions. [2022-11-16 11:23:54,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-16 11:23:54,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:54,268 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] [2022-11-16 11:23:54,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:23:54,269 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:23:54,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:54,270 INFO L85 PathProgramCache]: Analyzing trace with hash 970637325, now seen corresponding path program 1 times [2022-11-16 11:23:54,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:54,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460442074] [2022-11-16 11:23:54,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:54,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:55,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-16 11:23:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:55,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:23:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:55,667 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 11:23:55,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:55,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460442074] [2022-11-16 11:23:55,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460442074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:55,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:55,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:23:55,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363618232] [2022-11-16 11:23:55,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:55,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:23:55,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:55,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:23:55,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:23:55,672 INFO L87 Difference]: Start difference. First operand 33474 states and 53484 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 11:24:01,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:01,218 INFO L93 Difference]: Finished difference Result 100544 states and 161102 transitions. [2022-11-16 11:24:01,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:24:01,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 30 [2022-11-16 11:24:01,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:01,528 INFO L225 Difference]: With dead ends: 100544 [2022-11-16 11:24:01,528 INFO L226 Difference]: Without dead ends: 67073 [2022-11-16 11:24:01,940 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 11:24:01,941 INFO L413 NwaCegarLoop]: 3729 mSDtfsCounter, 3363 mSDsluCounter, 5900 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 897 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3580 SdHoareTripleChecker+Valid, 9629 SdHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 897 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:01,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3580 Valid, 9629 Invalid, 1866 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [897 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-16 11:24:02,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67073 states. [2022-11-16 11:24:05,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67073 to 66770. [2022-11-16 11:24:05,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66770 states, 51707 states have (on average 1.5421896455025432) internal successors, (79742), 51712 states have internal predecessors, (79742), 13462 states have call successors, (13462), 1601 states have call predecessors, (13462), 1600 states have return successors, (13456), 13456 states have call predecessors, (13456), 13456 states have call successors, (13456) [2022-11-16 11:24:06,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66770 states to 66770 states and 106660 transitions. [2022-11-16 11:24:06,165 INFO L78 Accepts]: Start accepts. Automaton has 66770 states and 106660 transitions. Word has length 30 [2022-11-16 11:24:06,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:06,166 INFO L495 AbstractCegarLoop]: Abstraction has 66770 states and 106660 transitions. [2022-11-16 11:24:06,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 11:24:06,166 INFO L276 IsEmpty]: Start isEmpty. Operand 66770 states and 106660 transitions. [2022-11-16 11:24:06,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-16 11:24:06,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:06,171 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 11:24:06,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:24:06,171 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:24:06,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:06,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1724566843, now seen corresponding path program 1 times [2022-11-16 11:24:06,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:06,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613356231] [2022-11-16 11:24:06,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:06,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:06,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:24:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:06,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:24:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:06,968 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 11:24:06,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:06,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613356231] [2022-11-16 11:24:06,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613356231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:06,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:06,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:24:06,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592741350] [2022-11-16 11:24:06,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:06,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:24:06,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:06,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:24:06,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:24:06,971 INFO L87 Difference]: Start difference. First operand 66770 states and 106660 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 11:24:13,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:13,545 INFO L93 Difference]: Finished difference Result 200560 states and 321286 transitions. [2022-11-16 11:24:13,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:24:13,546 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 11:24:13,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:14,675 INFO L225 Difference]: With dead ends: 200560 [2022-11-16 11:24:14,676 INFO L226 Difference]: Without dead ends: 133793 [2022-11-16 11:24:14,976 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 11:24:14,977 INFO L413 NwaCegarLoop]: 3772 mSDtfsCounter, 3362 mSDsluCounter, 5918 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 889 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3565 SdHoareTripleChecker+Valid, 9690 SdHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 889 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:14,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3565 Valid, 9690 Invalid, 1859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [889 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-16 11:24:15,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133793 states. [2022-11-16 11:24:19,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133793 to 133202. [2022-11-16 11:24:19,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133202 states, 103147 states have (on average 1.541702618592882) internal successors, (159022), 103152 states have internal predecessors, (159022), 26854 states have call successors, (26854), 3201 states have call predecessors, (26854), 3200 states have return successors, (26848), 26848 states have call predecessors, (26848), 26848 states have call successors, (26848) [2022-11-16 11:24:20,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133202 states to 133202 states and 212724 transitions. [2022-11-16 11:24:20,861 INFO L78 Accepts]: Start accepts. Automaton has 133202 states and 212724 transitions. Word has length 31 [2022-11-16 11:24:20,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:20,862 INFO L495 AbstractCegarLoop]: Abstraction has 133202 states and 212724 transitions. [2022-11-16 11:24:20,862 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 11:24:20,863 INFO L276 IsEmpty]: Start isEmpty. Operand 133202 states and 212724 transitions. [2022-11-16 11:24:20,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-16 11:24:20,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:20,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:20,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:24:20,867 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:24:20,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:20,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1687992602, now seen corresponding path program 1 times [2022-11-16 11:24:20,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:20,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417175802] [2022-11-16 11:24:20,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:20,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:21,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 11:24:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:21,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:24:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:21,647 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 11:24:21,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:21,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417175802] [2022-11-16 11:24:21,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417175802] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:21,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:21,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:24:21,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177596325] [2022-11-16 11:24:21,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:21,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:24:21,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:21,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:24:21,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:24:21,650 INFO L87 Difference]: Start difference. First operand 133202 states and 212724 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 11:24:32,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:32,174 INFO L93 Difference]: Finished difference Result 400112 states and 640790 transitions. [2022-11-16 11:24:32,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:24:32,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 39 [2022-11-16 11:24:32,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:34,156 INFO L225 Difference]: With dead ends: 400112 [2022-11-16 11:24:34,157 INFO L226 Difference]: Without dead ends: 266913 [2022-11-16 11:24:34,732 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 11:24:34,733 INFO L413 NwaCegarLoop]: 3773 mSDtfsCounter, 3354 mSDsluCounter, 5917 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 887 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3572 SdHoareTripleChecker+Valid, 9690 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 887 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:34,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3572 Valid, 9690 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [887 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-16 11:24:34,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266913 states.