./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--max16065.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --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 1ad6d1ed8310d8e3264189ac87472d58c77647a0c63d75779b5974e889987542 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:41:53,630 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:41:53,753 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 21:41:53,760 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:41:53,761 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:41:53,802 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:41:53,803 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:41:53,804 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:41:53,805 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:41:53,810 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:41:53,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:41:53,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:41:53,812 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:41:53,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:41:53,815 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:41:53,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:41:53,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:41:53,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:41:53,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:41:53,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:41:53,818 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:41:53,819 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:41:53,820 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:41:53,820 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:41:53,821 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:41:53,822 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:41:53,822 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:41:53,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:41:53,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:41:53,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:41:53,825 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:41:53,826 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:41:53,826 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:41:53,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:41:53,827 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:41:53,827 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:41:53,827 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:41:53,828 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:41:53,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:41:53,828 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ad6d1ed8310d8e3264189ac87472d58c77647a0c63d75779b5974e889987542 [2023-11-23 21:41:54,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:41:54,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:41:54,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:41:54,204 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:41:54,204 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:41:54,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i [2023-11-23 21:41:57,443 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:41:58,057 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:41:58,060 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i [2023-11-23 21:41:58,108 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/data/5aa65ee43/da11617ecf16445c919e2e6929c555f4/FLAG9955e433f [2023-11-23 21:41:58,129 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/data/5aa65ee43/da11617ecf16445c919e2e6929c555f4 [2023-11-23 21:41:58,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:41:58,138 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:41:58,141 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:41:58,141 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:41:58,148 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:41:58,149 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:41:58" (1/1) ... [2023-11-23 21:41:58,150 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aa1e4fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:58, skipping insertion in model container [2023-11-23 21:41:58,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:41:58" (1/1) ... [2023-11-23 21:41:58,280 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:41:59,369 WARN L240 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_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i[168201,168214] [2023-11-23 21:41:59,485 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:41:59,628 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:41:59,985 WARN L240 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_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i[168201,168214] [2023-11-23 21:42:00,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:42:00,325 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:42:00,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:00 WrapperNode [2023-11-23 21:42:00,326 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:42:00,327 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:42:00,328 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:42:00,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:42:00,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:00" (1/1) ... [2023-11-23 21:42:00,462 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:00" (1/1) ... [2023-11-23 21:42:00,683 INFO L138 Inliner]: procedures = 115, calls = 2153, calls flagged for inlining = 45, calls inlined = 37, statements flattened = 5491 [2023-11-23 21:42:00,684 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:42:00,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:42:00,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:42:00,685 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:42:00,699 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:00" (1/1) ... [2023-11-23 21:42:00,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:00" (1/1) ... [2023-11-23 21:42:00,760 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:00" (1/1) ... [2023-11-23 21:42:01,117 INFO L189 HeapSplitter]: Split 1713 memory accesses to 24 slices as follows [2, 12, 1, 8, 30, 1, 3, 3, 1, 1, 7, 7, 81, 7, 5, 3, 1186, 1, 42, 1, 1, 1, 307, 2] [2023-11-23 21:42:01,118 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:00" (1/1) ... [2023-11-23 21:42:01,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:00" (1/1) ... [2023-11-23 21:42:01,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:00" (1/1) ... [2023-11-23 21:42:01,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:00" (1/1) ... [2023-11-23 21:42:01,379 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:00" (1/1) ... [2023-11-23 21:42:01,401 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:00" (1/1) ... [2023-11-23 21:42:01,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:42:01,440 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:42:01,440 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:42:01,441 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:42:01,442 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:00" (1/1) ... [2023-11-23 21:42:01,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:42:01,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:42:01,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:42:01,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:42:01,525 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_set_limit [2023-11-23 21:42:01,525 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_set_limit [2023-11-23 21:42:01,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 21:42:01,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 21:42:01,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 21:42:01,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 21:42:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 21:42:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 21:42:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 21:42:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 21:42:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-23 21:42:01,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-23 21:42:01,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-23 21:42:01,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-23 21:42:01,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-23 21:42:01,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-23 21:42:01,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-23 21:42:01,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-23 21:42:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-23 21:42:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-23 21:42:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-11-23 21:42:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-11-23 21:42:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2023-11-23 21:42:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2023-11-23 21:42:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2023-11-23 21:42:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2023-11-23 21:42:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-23 21:42:01,534 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-23 21:42:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2023-11-23 21:42:01,536 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2023-11-23 21:42:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_show_limit [2023-11-23 21:42:01,536 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_show_limit [2023-11-23 21:42:01,537 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_update_device [2023-11-23 21:42:01,537 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_update_device [2023-11-23 21:42:01,537 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_show_input [2023-11-23 21:42:01,538 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_show_input [2023-11-23 21:42:01,538 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_read_adc [2023-11-23 21:42:01,539 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_read_adc [2023-11-23 21:42:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:42:01,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:42:01,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_max16065_data [2023-11-23 21:42:01,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_max16065_data [2023-11-23 21:42:01,540 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_show_alarm [2023-11-23 21:42:01,540 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_show_alarm [2023-11-23 21:42:01,540 INFO L130 BoogieDeclarations]: Found specification of procedure LIMIT_TO_MV [2023-11-23 21:42:01,541 INFO L138 BoogieDeclarations]: Found implementation of procedure LIMIT_TO_MV [2023-11-23 21:42:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 21:42:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 21:42:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 21:42:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 21:42:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 21:42:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 21:42:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 21:42:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 21:42:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-23 21:42:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-23 21:42:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-23 21:42:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-23 21:42:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-23 21:42:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-23 21:42:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-23 21:42:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-23 21:42:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-23 21:42:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-23 21:42:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-11-23 21:42:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-11-23 21:42:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2023-11-23 21:42:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2023-11-23 21:42:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2023-11-23 21:42:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2023-11-23 21:42:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:42:01,548 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:42:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:42:01,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:42:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:42:01,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:42:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:42:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 21:42:01,550 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 21:42:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:42:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 21:42:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 21:42:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 21:42:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 21:42:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 21:42:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 21:42:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 21:42:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-23 21:42:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-23 21:42:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-23 21:42:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-23 21:42:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-23 21:42:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-23 21:42:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-23 21:42:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-23 21:42:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-23 21:42:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-11-23 21:42:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-11-23 21:42:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2023-11-23 21:42:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2023-11-23 21:42:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2023-11-23 21:42:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2023-11-23 21:42:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2023-11-23 21:42:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2023-11-23 21:42:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:42:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_max16065_data [2023-11-23 21:42:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_max16065_data [2023-11-23 21:42:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2023-11-23 21:42:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2023-11-23 21:42:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 21:42:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 21:42:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 21:42:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 21:42:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 21:42:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 21:42:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 21:42:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-23 21:42:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-23 21:42:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-23 21:42:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-23 21:42:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-23 21:42:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-23 21:42:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-23 21:42:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-23 21:42:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-23 21:42:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-11-23 21:42:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-11-23 21:42:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2023-11-23 21:42:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2023-11-23 21:42:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2023-11-23 21:42:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2023-11-23 21:42:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2023-11-23 21:42:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2023-11-23 21:42:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:42:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 21:42:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 21:42:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 21:42:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 21:42:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 21:42:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 21:42:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-23 21:42:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-23 21:42:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-23 21:42:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-23 21:42:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-23 21:42:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-23 21:42:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-23 21:42:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-23 21:42:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-23 21:42:01,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-11-23 21:42:01,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-11-23 21:42:01,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-11-23 21:42:01,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2023-11-23 21:42:01,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2023-11-23 21:42:01,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2023-11-23 21:42:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2023-11-23 21:42:01,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2023-11-23 21:42:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2023-11-23 21:42:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_cleanup [2023-11-23 21:42:01,578 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_cleanup [2023-11-23 21:42:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 21:42:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 21:42:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 21:42:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 21:42:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 21:42:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 21:42:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 21:42:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 21:42:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-23 21:42:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-23 21:42:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-23 21:42:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-23 21:42:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-23 21:42:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-23 21:42:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-23 21:42:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-23 21:42:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-23 21:42:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-23 21:42:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-23 21:42:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-23 21:42:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2023-11-23 21:42:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2023-11-23 21:42:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2023-11-23 21:42:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2023-11-23 21:42:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2023-11-23 21:42:01,587 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2023-11-23 21:42:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:42:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:42:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_file [2023-11-23 21:42:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_file [2023-11-23 21:42:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:42:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:42:02,463 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:42:02,467 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:42:09,022 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:42:10,154 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:42:10,154 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:42:10,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:42:10 BoogieIcfgContainer [2023-11-23 21:42:10,156 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:42:10,158 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:42:10,158 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:42:10,162 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:42:10,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:41:58" (1/3) ... [2023-11-23 21:42:10,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344033e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:42:10, skipping insertion in model container [2023-11-23 21:42:10,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:00" (2/3) ... [2023-11-23 21:42:10,164 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344033e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:42:10, skipping insertion in model container [2023-11-23 21:42:10,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:42:10" (3/3) ... [2023-11-23 21:42:10,165 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i [2023-11-23 21:42:10,187 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:42:10,187 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:42:10,265 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:42:10,272 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=LoopHeads, 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;@567aa499, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:42:10,272 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:42:10,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 987 states, 782 states have (on average 1.707161125319693) internal successors, (1335), 789 states have internal predecessors, (1335), 182 states have call successors, (182), 21 states have call predecessors, (182), 21 states have return successors, (182), 182 states have call predecessors, (182), 182 states have call successors, (182) [2023-11-23 21:42:10,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 21:42:10,300 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:10,300 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] [2023-11-23 21:42:10,301 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:10,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:10,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1992223235, now seen corresponding path program 1 times [2023-11-23 21:42:10,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:10,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220159904] [2023-11-23 21:42:10,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:10,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:11,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 21:42:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:11,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:42:11,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:11,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220159904] [2023-11-23 21:42:11,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220159904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:11,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:11,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:42:11,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776167879] [2023-11-23 21:42:11,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:11,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:42:11,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:11,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:42:11,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:42:11,781 INFO L87 Difference]: Start difference. First operand has 987 states, 782 states have (on average 1.707161125319693) internal successors, (1335), 789 states have internal predecessors, (1335), 182 states have call successors, (182), 21 states have call predecessors, (182), 21 states have return successors, (182), 182 states have call predecessors, (182), 182 states have call successors, (182) 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) [2023-11-23 21:42:14,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:14,639 INFO L93 Difference]: Finished difference Result 3056 states and 5668 transitions. [2023-11-23 21:42:14,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:42:14,642 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 [2023-11-23 21:42:14,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:14,696 INFO L225 Difference]: With dead ends: 3056 [2023-11-23 21:42:14,696 INFO L226 Difference]: Without dead ends: 2066 [2023-11-23 21:42:14,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:42:14,720 INFO L413 NwaCegarLoop]: 1528 mSDtfsCounter, 1854 mSDsluCounter, 2769 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1986 SdHoareTripleChecker+Valid, 4297 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:14,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1986 Valid, 4297 Invalid, 1052 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [437 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-23 21:42:14,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2066 states. [2023-11-23 21:42:15,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2066 to 1949. [2023-11-23 21:42:15,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1949 states, 1551 states have (on average 1.7047066408768536) internal successors, (2644), 1556 states have internal predecessors, (2644), 357 states have call successors, (357), 41 states have call predecessors, (357), 40 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2023-11-23 21:42:15,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 3352 transitions. [2023-11-23 21:42:15,031 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 3352 transitions. Word has length 29 [2023-11-23 21:42:15,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:15,032 INFO L495 AbstractCegarLoop]: Abstraction has 1949 states and 3352 transitions. [2023-11-23 21:42:15,032 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) [2023-11-23 21:42:15,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 3352 transitions. [2023-11-23 21:42:15,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-23 21:42:15,037 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:15,037 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] [2023-11-23 21:42:15,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:42:15,038 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:15,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:15,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1464286140, now seen corresponding path program 1 times [2023-11-23 21:42:15,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:15,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600070071] [2023-11-23 21:42:15,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:15,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:15,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 21:42:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:15,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:15,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:42:15,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:15,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600070071] [2023-11-23 21:42:15,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600070071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:15,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:15,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:42:15,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823057425] [2023-11-23 21:42:15,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:15,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:42:15,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:15,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:42:15,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:42:15,742 INFO L87 Difference]: Start difference. First operand 1949 states and 3352 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) [2023-11-23 21:42:18,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:18,297 INFO L93 Difference]: Finished difference Result 6043 states and 10648 transitions. [2023-11-23 21:42:18,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:42:18,298 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 [2023-11-23 21:42:18,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:18,357 INFO L225 Difference]: With dead ends: 6043 [2023-11-23 21:42:18,357 INFO L226 Difference]: Without dead ends: 4095 [2023-11-23 21:42:18,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:42:18,374 INFO L413 NwaCegarLoop]: 1535 mSDtfsCounter, 1848 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 4331 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:18,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1979 Valid, 4331 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 21:42:18,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4095 states. [2023-11-23 21:42:18,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4095 to 3874. [2023-11-23 21:42:18,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3874 states, 3087 states have (on average 1.7045675413022352) internal successors, (5262), 3092 states have internal predecessors, (5262), 706 states have call successors, (706), 81 states have call predecessors, (706), 80 states have return successors, (700), 700 states have call predecessors, (700), 700 states have call successors, (700) [2023-11-23 21:42:18,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3874 states to 3874 states and 6668 transitions. [2023-11-23 21:42:18,728 INFO L78 Accepts]: Start accepts. Automaton has 3874 states and 6668 transitions. Word has length 33 [2023-11-23 21:42:18,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:18,729 INFO L495 AbstractCegarLoop]: Abstraction has 3874 states and 6668 transitions. [2023-11-23 21:42:18,729 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) [2023-11-23 21:42:18,729 INFO L276 IsEmpty]: Start isEmpty. Operand 3874 states and 6668 transitions. [2023-11-23 21:42:18,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 21:42:18,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:18,737 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] [2023-11-23 21:42:18,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:42:18,737 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:18,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:18,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1694010900, now seen corresponding path program 1 times [2023-11-23 21:42:18,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:18,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166508079] [2023-11-23 21:42:18,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:18,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 21:42:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 21:42:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:19,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:42:19,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:19,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166508079] [2023-11-23 21:42:19,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166508079] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:19,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:19,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:42:19,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018481123] [2023-11-23 21:42:19,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:19,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:42:19,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:19,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:42:19,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:42:19,576 INFO L87 Difference]: Start difference. First operand 3874 states and 6668 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) [2023-11-23 21:42:22,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:22,408 INFO L93 Difference]: Finished difference Result 12016 states and 21186 transitions. [2023-11-23 21:42:22,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:42:22,409 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 [2023-11-23 21:42:22,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:22,484 INFO L225 Difference]: With dead ends: 12016 [2023-11-23 21:42:22,484 INFO L226 Difference]: Without dead ends: 8143 [2023-11-23 21:42:22,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:42:22,505 INFO L413 NwaCegarLoop]: 1578 mSDtfsCounter, 1834 mSDsluCounter, 2830 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1953 SdHoareTripleChecker+Valid, 4408 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 426 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:22,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1953 Valid, 4408 Invalid, 1051 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [426 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-23 21:42:22,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8143 states. [2023-11-23 21:42:22,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8143 to 7714. [2023-11-23 21:42:22,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 6151 states have (on average 1.704113152332954) internal successors, (10482), 6156 states have internal predecessors, (10482), 1402 states have call successors, (1402), 161 states have call predecessors, (1402), 160 states have return successors, (1396), 1396 states have call predecessors, (1396), 1396 states have call successors, (1396) [2023-11-23 21:42:23,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 13280 transitions. [2023-11-23 21:42:23,028 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 13280 transitions. Word has length 30 [2023-11-23 21:42:23,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:23,029 INFO L495 AbstractCegarLoop]: Abstraction has 7714 states and 13280 transitions. [2023-11-23 21:42:23,029 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) [2023-11-23 21:42:23,029 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 13280 transitions. [2023-11-23 21:42:23,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-23 21:42:23,033 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:23,033 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] [2023-11-23 21:42:23,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:42:23,033 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:23,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:23,034 INFO L85 PathProgramCache]: Analyzing trace with hash -374329890, now seen corresponding path program 1 times [2023-11-23 21:42:23,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:23,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502192058] [2023-11-23 21:42:23,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:23,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:23,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502192058] [2023-11-23 21:42:23,503 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 21:42:23,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074576420] [2023-11-23 21:42:23,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:23,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:23,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:42:23,510 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:42:23,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:42:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 6906 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:42:25,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:42:25,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:42:25,347 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:42:25,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074576420] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:25,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:25,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:42:25,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551403049] [2023-11-23 21:42:25,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:25,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:42:25,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:25,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:42:25,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:25,355 INFO L87 Difference]: Start difference. First operand 7714 states and 13280 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:42:26,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:26,233 INFO L93 Difference]: Finished difference Result 23108 states and 39790 transitions. [2023-11-23 21:42:26,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:42:26,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2023-11-23 21:42:26,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:26,371 INFO L225 Difference]: With dead ends: 23108 [2023-11-23 21:42:26,371 INFO L226 Difference]: Without dead ends: 15395 [2023-11-23 21:42:26,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:26,422 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 1674 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1674 SdHoareTripleChecker+Valid, 3158 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:26,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1674 Valid, 3158 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:42:26,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15395 states. [2023-11-23 21:42:27,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15395 to 15382. [2023-11-23 21:42:27,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15382 states, 12279 states have (on average 1.703884681162961) internal successors, (20922), 12284 states have internal predecessors, (20922), 2782 states have call successors, (2782), 321 states have call predecessors, (2782), 320 states have return successors, (2776), 2776 states have call predecessors, (2776), 2776 states have call successors, (2776) [2023-11-23 21:42:27,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15382 states to 15382 states and 26480 transitions. [2023-11-23 21:42:27,582 INFO L78 Accepts]: Start accepts. Automaton has 15382 states and 26480 transitions. Word has length 33 [2023-11-23 21:42:27,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:27,583 INFO L495 AbstractCegarLoop]: Abstraction has 15382 states and 26480 transitions. [2023-11-23 21:42:27,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:42:27,584 INFO L276 IsEmpty]: Start isEmpty. Operand 15382 states and 26480 transitions. [2023-11-23 21:42:27,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-23 21:42:27,588 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:27,588 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] [2023-11-23 21:42:27,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:42:27,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:27,814 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:27,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:27,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1293096662, now seen corresponding path program 1 times [2023-11-23 21:42:27,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:27,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098394922] [2023-11-23 21:42:27,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:27,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:28,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:28,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098394922] [2023-11-23 21:42:28,360 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 21:42:28,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820103024] [2023-11-23 21:42:28,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:28,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:28,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:42:28,363 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:42:28,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:42:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 6916 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:42:30,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:42:30,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:42:30,383 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:42:30,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820103024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:30,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:30,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:42:30,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035299685] [2023-11-23 21:42:30,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:30,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:42:30,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:30,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:42:30,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:30,387 INFO L87 Difference]: Start difference. First operand 15382 states and 26480 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:42:31,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:31,907 INFO L93 Difference]: Finished difference Result 46080 states and 79342 transitions. [2023-11-23 21:42:31,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:42:31,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2023-11-23 21:42:31,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:32,068 INFO L225 Difference]: With dead ends: 46080 [2023-11-23 21:42:32,069 INFO L226 Difference]: Without dead ends: 30699 [2023-11-23 21:42:32,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:32,126 INFO L413 NwaCegarLoop]: 1604 mSDtfsCounter, 1669 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1669 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:32,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1669 Valid, 3166 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:42:32,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30699 states. [2023-11-23 21:42:33,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30699 to 30686. [2023-11-23 21:42:33,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30686 states, 24519 states have (on average 1.7035768179778947) internal successors, (41770), 24524 states have internal predecessors, (41770), 5526 states have call successors, (5526), 641 states have call predecessors, (5526), 640 states have return successors, (5520), 5520 states have call predecessors, (5520), 5520 states have call successors, (5520) [2023-11-23 21:42:34,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30686 states to 30686 states and 52816 transitions. [2023-11-23 21:42:34,381 INFO L78 Accepts]: Start accepts. Automaton has 30686 states and 52816 transitions. Word has length 38 [2023-11-23 21:42:34,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:34,382 INFO L495 AbstractCegarLoop]: Abstraction has 30686 states and 52816 transitions. [2023-11-23 21:42:34,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:42:34,383 INFO L276 IsEmpty]: Start isEmpty. Operand 30686 states and 52816 transitions. [2023-11-23 21:42:34,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-23 21:42:34,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:34,385 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] [2023-11-23 21:42:34,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:42:34,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:34,610 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:34,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:34,611 INFO L85 PathProgramCache]: Analyzing trace with hash 344345060, now seen corresponding path program 1 times [2023-11-23 21:42:34,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:34,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255752931] [2023-11-23 21:42:34,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:34,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:35,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:35,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255752931] [2023-11-23 21:42:35,002 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 21:42:35,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888948273] [2023-11-23 21:42:35,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:35,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:35,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:42:35,004 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:42:35,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b0c642-f5ec-4ec0-aa4a-01e6561c6c2c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:42:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:37,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 6918 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:42:37,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:42:37,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:42:37,168 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:42:37,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888948273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:37,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:37,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:42:37,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962716960] [2023-11-23 21:42:37,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:37,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:42:37,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:37,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:42:37,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:37,171 INFO L87 Difference]: Start difference. First operand 30686 states and 52816 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)