./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--mfd--sm501.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--mfd--sm501.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx --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 98b726a200cc424fa7bb1c37464c61d975878210ba7711cf31eb9bd278784d63 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 20:58:10,903 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 20:58:10,974 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 20:58:10,980 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 20:58:10,980 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 20:58:11,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 20:58:11,008 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 20:58:11,009 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 20:58:11,010 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 20:58:11,010 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 20:58:11,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 20:58:11,012 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 20:58:11,012 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 20:58:11,013 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 20:58:11,014 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 20:58:11,014 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 20:58:11,015 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 20:58:11,015 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 20:58:11,016 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 20:58:11,016 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 20:58:11,017 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 20:58:11,018 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 20:58:11,018 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 20:58:11,019 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 20:58:11,019 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 20:58:11,019 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 20:58:11,020 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 20:58:11,020 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 20:58:11,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:58:11,021 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 20:58:11,022 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 20:58:11,022 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 20:58:11,022 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 20:58:11,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 20:58:11,037 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 20:58:11,038 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 20:58:11,038 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 20:58:11,038 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 20:58:11,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 20:58:11,039 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_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98b726a200cc424fa7bb1c37464c61d975878210ba7711cf31eb9bd278784d63 [2023-11-21 20:58:11,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 20:58:11,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 20:58:11,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 20:58:11,397 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 20:58:11,397 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 20:58:11,399 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--mfd--sm501.ko-main.cil.out.i [2023-11-21 20:58:14,484 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 20:58:15,113 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 20:58:15,114 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--mfd--sm501.ko-main.cil.out.i [2023-11-21 20:58:15,156 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/data/8bce51bdc/65fa4cea40e9427c876539654e900545/FLAG7c5c8cd4b [2023-11-21 20:58:15,177 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/data/8bce51bdc/65fa4cea40e9427c876539654e900545 [2023-11-21 20:58:15,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 20:58:15,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 20:58:15,182 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 20:58:15,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 20:58:15,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 20:58:15,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:58:15" (1/1) ... [2023-11-21 20:58:15,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@488ba69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:15, skipping insertion in model container [2023-11-21 20:58:15,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:58:15" (1/1) ... [2023-11-21 20:58:15,332 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 20:58:16,817 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_671710fc-77ec-4b1c-99e7-f878e10bc15a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--mfd--sm501.ko-main.cil.out.i[171889,171902] [2023-11-21 20:58:16,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:58:16,967 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 20:58:17,053 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [3647] [2023-11-21 20:58:17,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [3654] [2023-11-21 20:58:17,214 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_671710fc-77ec-4b1c-99e7-f878e10bc15a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--mfd--sm501.ko-main.cil.out.i[171889,171902] [2023-11-21 20:58:17,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:58:17,369 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 20:58:17,377 INFO L206 MainTranslator]: Completed translation [2023-11-21 20:58:17,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:17 WrapperNode [2023-11-21 20:58:17,378 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 20:58:17,380 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 20:58:17,380 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 20:58:17,380 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 20:58:17,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:17" (1/1) ... [2023-11-21 20:58:17,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:17" (1/1) ... [2023-11-21 20:58:17,651 INFO L138 Inliner]: procedures = 180, calls = 1666, calls flagged for inlining = 68, calls inlined = 60, statements flattened = 3476 [2023-11-21 20:58:17,652 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 20:58:17,653 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 20:58:17,653 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 20:58:17,653 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 20:58:17,665 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:17" (1/1) ... [2023-11-21 20:58:17,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:17" (1/1) ... [2023-11-21 20:58:17,701 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:17" (1/1) ... [2023-11-21 20:58:18,593 INFO L187 HeapSplitter]: Split 1073 memory accesses to 15 slices as follows [2, 28, 4, 77, 752, 66, 6, 36, 7, 40, 21, 2, 12, 14, 6] [2023-11-21 20:58:18,595 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:17" (1/1) ... [2023-11-21 20:58:18,596 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:17" (1/1) ... [2023-11-21 20:58:18,740 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:17" (1/1) ... [2023-11-21 20:58:18,769 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:17" (1/1) ... [2023-11-21 20:58:18,786 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:17" (1/1) ... [2023-11-21 20:58:18,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:17" (1/1) ... [2023-11-21 20:58:18,839 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 20:58:18,840 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 20:58:18,840 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 20:58:18,840 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 20:58:18,842 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:17" (1/1) ... [2023-11-21 20:58:18,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:58:18,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:18,875 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:18,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 20:58:18,919 INFO L130 BoogieDeclarations]: Found specification of procedure gpiochip_remove [2023-11-21 20:58:18,920 INFO L138 BoogieDeclarations]: Found implementation of procedure gpiochip_remove [2023-11-21 20:58:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-21 20:58:18,920 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-21 20:58:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-21 20:58:18,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-21 20:58:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_mdelay [2023-11-21 20:58:18,921 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_mdelay [2023-11-21 20:58:18,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_clock_lock_of_sm501_devdata [2023-11-21 20:58:18,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_clock_lock_of_sm501_devdata [2023-11-21 20:58:18,921 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_calc_clock [2023-11-21 20:58:18,921 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_calc_clock [2023-11-21 20:58:18,922 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_gpio_input [2023-11-21 20:58:18,922 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_gpio_input [2023-11-21 20:58:18,922 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_plat_probe [2023-11-21 20:58:18,922 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_plat_probe [2023-11-21 20:58:18,922 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-21 20:58:18,922 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-21 20:58:18,923 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_init_regs [2023-11-21 20:58:18,923 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_init_regs [2023-11-21 20:58:18,923 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_setup_uart_data [2023-11-21 20:58:18,923 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_setup_uart_data [2023-11-21 20:58:18,923 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_plat_remove [2023-11-21 20:58:18,924 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_plat_remove [2023-11-21 20:58:18,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 20:58:18,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 20:58:18,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 20:58:18,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 20:58:18,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 20:58:18,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-21 20:58:18,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-21 20:58:18,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-21 20:58:18,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-21 20:58:18,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-21 20:58:18,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-21 20:58:18,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-21 20:58:18,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-21 20:58:18,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-21 20:58:18,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-21 20:58:18,926 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_set_power [2023-11-21 20:58:18,926 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_set_power [2023-11-21 20:58:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_gpio_pin2nr [2023-11-21 20:58:18,927 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_gpio_pin2nr [2023-11-21 20:58:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure to_sm501_gpio [2023-11-21 20:58:18,927 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sm501_gpio [2023-11-21 20:58:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_unit_power [2023-11-21 20:58:18,927 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_unit_power [2023-11-21 20:58:18,928 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_dev_remove [2023-11-21 20:58:18,928 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_dev_remove [2023-11-21 20:58:18,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 20:58:18,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 20:58:18,928 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_gpio_get [2023-11-21 20:58:18,928 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_gpio_get [2023-11-21 20:58:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_clock_lock_of_sm501_devdata [2023-11-21 20:58:18,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_clock_lock_of_sm501_devdata [2023-11-21 20:58:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_create_mem [2023-11-21 20:58:18,929 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_create_mem [2023-11-21 20:58:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 20:58:18,929 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 20:58:18,930 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_calc_pll [2023-11-21 20:58:18,930 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_calc_pll [2023-11-21 20:58:18,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 20:58:18,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 20:58:18,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 20:58:18,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 20:58:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 20:58:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-21 20:58:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-21 20:58:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-21 20:58:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-21 20:58:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-21 20:58:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-21 20:58:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-21 20:58:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-21 20:58:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-21 20:58:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-21 20:58:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-21 20:58:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-21 20:58:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-21 20:58:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-21 20:58:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 20:58:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 20:58:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-21 20:58:18,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-21 20:58:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2023-11-21 20:58:18,934 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2023-11-21 20:58:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_create_subio [2023-11-21 20:58:18,934 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_create_subio [2023-11-21 20:58:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_register_device [2023-11-21 20:58:18,935 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_register_device [2023-11-21 20:58:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 20:58:18,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 20:58:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_init_dev [2023-11-21 20:58:18,935 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_init_dev [2023-11-21 20:58:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_gpio_register_chip [2023-11-21 20:58:18,936 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_gpio_register_chip [2023-11-21 20:58:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 20:58:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure to_sm_device [2023-11-21 20:58:18,936 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sm_device [2023-11-21 20:58:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-21 20:58:18,936 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-21 20:58:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-21 20:58:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-21 20:58:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_select_clock [2023-11-21 20:58:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_select_clock [2023-11-21 20:58:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 20:58:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_create_irq [2023-11-21 20:58:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_create_irq [2023-11-21 20:58:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 20:58:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-21 20:58:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-21 20:58:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-21 20:58:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-21 20:58:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-21 20:58:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-21 20:58:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-21 20:58:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-21 20:58:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-21 20:58:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-21 20:58:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-21 20:58:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-21 20:58:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-21 20:58:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-21 20:58:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-21 20:58:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-21 20:58:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_sync_regs [2023-11-21 20:58:18,940 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_sync_regs [2023-11-21 20:58:18,941 INFO L130 BoogieDeclarations]: Found specification of procedure release_resource [2023-11-21 20:58:18,941 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resource [2023-11-21 20:58:18,941 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-21 20:58:18,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-21 20:58:18,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-21 20:58:18,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-21 20:58:18,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-21 20:58:18,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-21 20:58:18,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-21 20:58:18,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-21 20:58:18,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-21 20:58:18,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-21 20:58:18,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-21 20:58:18,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-21 20:58:18,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-21 20:58:18,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-21 20:58:18,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-21 20:58:18,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-21 20:58:18,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-21 20:58:18,944 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_create_subdev [2023-11-21 20:58:18,944 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_create_subdev [2023-11-21 20:58:18,944 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_gpio_to_dev [2023-11-21 20:58:18,944 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_gpio_to_dev [2023-11-21 20:58:18,944 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2023-11-21 20:58:18,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2023-11-21 20:58:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-21 20:58:18,945 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-21 20:58:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2023-11-21 20:58:18,945 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2023-11-21 20:58:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 20:58:18,946 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_dump_gate [2023-11-21 20:58:18,946 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_dump_gate [2023-11-21 20:58:18,946 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-11-21 20:58:18,946 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-11-21 20:58:18,946 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-21 20:58:18,946 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-21 20:58:18,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-21 20:58:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-21 20:58:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-21 20:58:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-21 20:58:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-21 20:58:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-21 20:58:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-21 20:58:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-21 20:58:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-21 20:58:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-21 20:58:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-21 20:58:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-21 20:58:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-21 20:58:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-21 20:58:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-21 20:58:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-21 20:58:18,949 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-21 20:58:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-21 20:58:18,949 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-21 20:58:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_set_clock [2023-11-21 20:58:18,949 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_set_clock [2023-11-21 20:58:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_modify_reg [2023-11-21 20:58:18,950 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_modify_reg [2023-11-21 20:58:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-21 20:58:18,950 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-21 20:58:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-21 20:58:18,950 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-21 20:58:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-21 20:58:18,951 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-21 20:58:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_init_reg [2023-11-21 20:58:18,951 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_init_reg [2023-11-21 20:58:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-21 20:58:18,951 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-21 20:58:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 20:58:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 20:58:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 20:58:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 20:58:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 20:58:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-21 20:58:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-21 20:58:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-21 20:58:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-21 20:58:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-21 20:58:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-21 20:58:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-21 20:58:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-21 20:58:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-21 20:58:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-21 20:58:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2023-11-21 20:58:18,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2023-11-21 20:58:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_plat_resume [2023-11-21 20:58:18,954 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_plat_resume [2023-11-21 20:58:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_gpio_ensure_gpio [2023-11-21 20:58:18,954 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_gpio_ensure_gpio [2023-11-21 20:58:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 20:58:18,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 20:58:19,536 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 20:58:19,540 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 20:58:24,502 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 20:58:26,522 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 20:58:26,523 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 20:58:26,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:58:26 BoogieIcfgContainer [2023-11-21 20:58:26,525 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 20:58:26,530 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 20:58:26,530 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 20:58:26,534 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 20:58:26,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:58:15" (1/3) ... [2023-11-21 20:58:26,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5ee0ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:58:26, skipping insertion in model container [2023-11-21 20:58:26,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:17" (2/3) ... [2023-11-21 20:58:26,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5ee0ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:58:26, skipping insertion in model container [2023-11-21 20:58:26,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:58:26" (3/3) ... [2023-11-21 20:58:26,539 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--mfd--sm501.ko-main.cil.out.i [2023-11-21 20:58:26,562 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 20:58:26,562 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 20:58:26,664 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 20:58:26,675 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;@4c97ade4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 20:58:26,675 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 20:58:26,688 INFO L276 IsEmpty]: Start isEmpty. Operand has 843 states, 495 states have (on average 1.2747474747474747) internal successors, (631), 509 states have internal predecessors, (631), 285 states have call successors, (285), 61 states have call predecessors, (285), 61 states have return successors, (285), 285 states have call predecessors, (285), 285 states have call successors, (285) [2023-11-21 20:58:26,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 20:58:26,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:26,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:26,702 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:58:26,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:26,710 INFO L85 PathProgramCache]: Analyzing trace with hash 876690214, now seen corresponding path program 1 times [2023-11-21 20:58:26,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:26,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36574229] [2023-11-21 20:58:26,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:26,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:27,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:58:27,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:27,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36574229] [2023-11-21 20:58:27,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36574229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:27,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:27,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 20:58:27,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819889870] [2023-11-21 20:58:27,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:27,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 20:58:27,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:27,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 20:58:27,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:58:27,666 INFO L87 Difference]: Start difference. First operand has 843 states, 495 states have (on average 1.2747474747474747) internal successors, (631), 509 states have internal predecessors, (631), 285 states have call successors, (285), 61 states have call predecessors, (285), 61 states have return successors, (285), 285 states have call predecessors, (285), 285 states have call successors, (285) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:58:31,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:58:33,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:58:35,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:58:35,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:35,741 INFO L93 Difference]: Finished difference Result 2513 states and 3621 transitions. [2023-11-21 20:58:35,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 20:58:35,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-21 20:58:35,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:35,777 INFO L225 Difference]: With dead ends: 2513 [2023-11-21 20:58:35,777 INFO L226 Difference]: Without dead ends: 1669 [2023-11-21 20:58:35,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:58:35,797 INFO L413 NwaCegarLoop]: 1048 mSDtfsCounter, 1167 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:35,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 2092 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 294 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2023-11-21 20:58:35,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2023-11-21 20:58:36,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1665. [2023-11-21 20:58:36,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1665 states, 980 states have (on average 1.2663265306122449) internal successors, (1241), 999 states have internal predecessors, (1241), 564 states have call successors, (564), 121 states have call predecessors, (564), 120 states have return successors, (558), 558 states have call predecessors, (558), 558 states have call successors, (558) [2023-11-21 20:58:36,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2363 transitions. [2023-11-21 20:58:36,099 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2363 transitions. Word has length 12 [2023-11-21 20:58:36,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:36,100 INFO L495 AbstractCegarLoop]: Abstraction has 1665 states and 2363 transitions. [2023-11-21 20:58:36,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:58:36,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2363 transitions. [2023-11-21 20:58:36,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 20:58:36,109 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:36,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:36,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 20:58:36,109 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:58:36,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:36,110 INFO L85 PathProgramCache]: Analyzing trace with hash -720742687, now seen corresponding path program 1 times [2023-11-21 20:58:36,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:36,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727769435] [2023-11-21 20:58:36,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:36,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:36,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:58:36,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:36,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727769435] [2023-11-21 20:58:36,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727769435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:36,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:36,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 20:58:36,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267653109] [2023-11-21 20:58:36,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:36,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 20:58:36,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:36,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 20:58:36,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:58:36,425 INFO L87 Difference]: Start difference. First operand 1665 states and 2363 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:58:39,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:58:39,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:39,487 INFO L93 Difference]: Finished difference Result 1709 states and 2397 transitions. [2023-11-21 20:58:39,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 20:58:39,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-21 20:58:39,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:39,570 INFO L225 Difference]: With dead ends: 1709 [2023-11-21 20:58:39,570 INFO L226 Difference]: Without dead ends: 1705 [2023-11-21 20:58:39,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:58:39,572 INFO L413 NwaCegarLoop]: 1042 mSDtfsCounter, 1038 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:39,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 1174 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 168 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2023-11-21 20:58:39,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2023-11-21 20:58:39,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1703. [2023-11-21 20:58:39,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1703 states, 1004 states have (on average 1.2609561752988048) internal successors, (1266), 1021 states have internal predecessors, (1266), 564 states have call successors, (564), 135 states have call predecessors, (564), 134 states have return successors, (560), 560 states have call predecessors, (560), 560 states have call successors, (560) [2023-11-21 20:58:39,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1703 states to 1703 states and 2390 transitions. [2023-11-21 20:58:39,709 INFO L78 Accepts]: Start accepts. Automaton has 1703 states and 2390 transitions. Word has length 14 [2023-11-21 20:58:39,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:39,710 INFO L495 AbstractCegarLoop]: Abstraction has 1703 states and 2390 transitions. [2023-11-21 20:58:39,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:58:39,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 2390 transitions. [2023-11-21 20:58:39,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 20:58:39,718 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:39,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:39,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 20:58:39,719 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:58:39,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:39,729 INFO L85 PathProgramCache]: Analyzing trace with hash -868734485, now seen corresponding path program 1 times [2023-11-21 20:58:39,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:39,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379016603] [2023-11-21 20:58:39,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:39,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:40,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:58:40,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:40,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379016603] [2023-11-21 20:58:40,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379016603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:40,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:40,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 20:58:40,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417101088] [2023-11-21 20:58:40,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:40,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 20:58:40,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:40,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 20:58:40,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:58:40,034 INFO L87 Difference]: Start difference. First operand 1703 states and 2390 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:58:43,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:58:43,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:43,147 INFO L93 Difference]: Finished difference Result 1705 states and 2391 transitions. [2023-11-21 20:58:43,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 20:58:43,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-21 20:58:43,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:43,163 INFO L225 Difference]: With dead ends: 1705 [2023-11-21 20:58:43,163 INFO L226 Difference]: Without dead ends: 1702 [2023-11-21 20:58:43,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:58:43,166 INFO L413 NwaCegarLoop]: 1041 mSDtfsCounter, 1174 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:43,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1174 Valid, 1041 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2023-11-21 20:58:43,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2023-11-21 20:58:43,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1702. [2023-11-21 20:58:43,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1702 states, 1004 states have (on average 1.2599601593625498) internal successors, (1265), 1020 states have internal predecessors, (1265), 563 states have call successors, (563), 135 states have call predecessors, (563), 134 states have return successors, (560), 560 states have call predecessors, (560), 560 states have call successors, (560) [2023-11-21 20:58:43,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1702 states to 1702 states and 2388 transitions. [2023-11-21 20:58:43,297 INFO L78 Accepts]: Start accepts. Automaton has 1702 states and 2388 transitions. Word has length 15 [2023-11-21 20:58:43,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:43,298 INFO L495 AbstractCegarLoop]: Abstraction has 1702 states and 2388 transitions. [2023-11-21 20:58:43,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:58:43,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1702 states and 2388 transitions. [2023-11-21 20:58:43,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-21 20:58:43,300 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:43,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:43,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 20:58:43,301 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:58:43,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:43,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1161508060, now seen corresponding path program 1 times [2023-11-21 20:58:43,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:43,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734271656] [2023-11-21 20:58:43,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:43,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:43,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:58:43,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:43,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734271656] [2023-11-21 20:58:43,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734271656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:43,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:43,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 20:58:43,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179447462] [2023-11-21 20:58:43,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:43,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 20:58:43,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:43,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 20:58:43,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:58:43,607 INFO L87 Difference]: Start difference. First operand 1702 states and 2388 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:58:46,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:58:46,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:46,548 INFO L93 Difference]: Finished difference Result 1704 states and 2389 transitions. [2023-11-21 20:58:46,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 20:58:46,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-21 20:58:46,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:46,564 INFO L225 Difference]: With dead ends: 1704 [2023-11-21 20:58:46,565 INFO L226 Difference]: Without dead ends: 1701 [2023-11-21 20:58:46,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:58:46,568 INFO L413 NwaCegarLoop]: 1039 mSDtfsCounter, 1171 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:46,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 1039 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2023-11-21 20:58:46,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1701 states. [2023-11-21 20:58:46,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1701 to 1701. [2023-11-21 20:58:46,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1004 states have (on average 1.2589641434262948) internal successors, (1264), 1019 states have internal predecessors, (1264), 562 states have call successors, (562), 135 states have call predecessors, (562), 134 states have return successors, (560), 560 states have call predecessors, (560), 560 states have call successors, (560) [2023-11-21 20:58:46,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2386 transitions. [2023-11-21 20:58:46,711 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2386 transitions. Word has length 16 [2023-11-21 20:58:46,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:46,712 INFO L495 AbstractCegarLoop]: Abstraction has 1701 states and 2386 transitions. [2023-11-21 20:58:46,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:58:46,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2386 transitions. [2023-11-21 20:58:46,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-21 20:58:46,713 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:46,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:46,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 20:58:46,714 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:58:46,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:46,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1647549426, now seen corresponding path program 1 times [2023-11-21 20:58:46,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:46,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980870093] [2023-11-21 20:58:46,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:46,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:46,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:46,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:58:46,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:46,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980870093] [2023-11-21 20:58:46,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980870093] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:46,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:46,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 20:58:46,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817158401] [2023-11-21 20:58:46,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:46,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 20:58:46,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:46,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 20:58:46,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:58:46,936 INFO L87 Difference]: Start difference. First operand 1701 states and 2386 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:58:49,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:58:50,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:50,006 INFO L93 Difference]: Finished difference Result 1703 states and 2387 transitions. [2023-11-21 20:58:50,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 20:58:50,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-21 20:58:50,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:50,022 INFO L225 Difference]: With dead ends: 1703 [2023-11-21 20:58:50,022 INFO L226 Difference]: Without dead ends: 1695 [2023-11-21 20:58:50,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:58:50,025 INFO L413 NwaCegarLoop]: 1038 mSDtfsCounter, 1168 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:50,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 1038 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2023-11-21 20:58:50,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2023-11-21 20:58:50,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1695. [2023-11-21 20:58:50,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 999 states have (on average 1.2582582582582582) internal successors, (1257), 1013 states have internal predecessors, (1257), 561 states have call successors, (561), 135 states have call predecessors, (561), 134 states have return successors, (560), 560 states have call predecessors, (560), 560 states have call successors, (560) [2023-11-21 20:58:50,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2378 transitions. [2023-11-21 20:58:50,230 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2378 transitions. Word has length 17 [2023-11-21 20:58:50,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:50,230 INFO L495 AbstractCegarLoop]: Abstraction has 1695 states and 2378 transitions. [2023-11-21 20:58:50,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:58:50,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2378 transitions. [2023-11-21 20:58:50,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-21 20:58:50,255 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:50,256 INFO L195 NwaCegarLoop]: trace histogram [11, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:50,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 20:58:50,257 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:58:50,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:50,258 INFO L85 PathProgramCache]: Analyzing trace with hash 782319460, now seen corresponding path program 1 times [2023-11-21 20:58:50,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:50,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922413909] [2023-11-21 20:58:50,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:50,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:50,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-21 20:58:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:50,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:50,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:50,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-21 20:58:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:50,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:50,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 20:58:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-21 20:58:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-21 20:58:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-21 20:58:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-21 20:58:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-21 20:58:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-21 20:58:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-21 20:58:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-21 20:58:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-21 20:58:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-21 20:58:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-21 20:58:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-21 20:58:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 20:58:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-21 20:58:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 20:58:51,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-21 20:58:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 20:58:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-21 20:58:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-21 20:58:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-21 20:58:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-21 20:58:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-21 20:58:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-21 20:58:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-21 20:58:51,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-21 20:58:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-11-21 20:58:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-21 20:58:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:51,569 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-21 20:58:51,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:51,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922413909] [2023-11-21 20:58:51,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922413909] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:58:51,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588345044] [2023-11-21 20:58:51,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:51,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:51,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:51,573 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:58:51,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 20:58:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:52,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 3868 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 20:58:52,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:52,834 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-21 20:58:52,836 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 20:58:52,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588345044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:52,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 20:58:52,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-21 20:58:52,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604853580] [2023-11-21 20:58:52,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:52,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 20:58:52,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:52,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 20:58:52,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-21 20:58:52,842 INFO L87 Difference]: Start difference. First operand 1695 states and 2378 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-21 20:58:56,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:58:58,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:58:58,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:58,407 INFO L93 Difference]: Finished difference Result 3389 states and 4781 transitions. [2023-11-21 20:58:58,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 20:58:58,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 198 [2023-11-21 20:58:58,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:58,423 INFO L225 Difference]: With dead ends: 3389 [2023-11-21 20:58:58,423 INFO L226 Difference]: Without dead ends: 1695 [2023-11-21 20:58:58,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-21 20:58:58,435 INFO L413 NwaCegarLoop]: 1032 mSDtfsCounter, 37 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 2005 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:58,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 2005 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 278 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2023-11-21 20:58:58,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2023-11-21 20:58:58,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1695. [2023-11-21 20:58:58,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 999 states have (on average 1.2562562562562563) internal successors, (1255), 1013 states have internal predecessors, (1255), 561 states have call successors, (561), 135 states have call predecessors, (561), 134 states have return successors, (560), 560 states have call predecessors, (560), 560 states have call successors, (560) [2023-11-21 20:58:58,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2376 transitions. [2023-11-21 20:58:58,659 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2376 transitions. Word has length 198 [2023-11-21 20:58:58,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:58,661 INFO L495 AbstractCegarLoop]: Abstraction has 1695 states and 2376 transitions. [2023-11-21 20:58:58,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-21 20:58:58,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2376 transitions. [2023-11-21 20:58:58,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-11-21 20:58:58,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:58,673 INFO L195 NwaCegarLoop]: trace histogram [11, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:58,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:58,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:58,887 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:58:58,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:58,888 INFO L85 PathProgramCache]: Analyzing trace with hash 480571898, now seen corresponding path program 1 times [2023-11-21 20:58:58,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:58,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608293437] [2023-11-21 20:58:58,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:58,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:59,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:59,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608293437] [2023-11-21 20:58:59,066 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-21 20:58:59,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124141299] [2023-11-21 20:58:59,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:59,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:59,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:59,068 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:58:59,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_671710fc-77ec-4b1c-99e7-f878e10bc15a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 20:59:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:00,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 3573 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 20:59:00,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:59:00,212 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-11-21 20:59:00,213 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 20:59:00,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124141299] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:59:00,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:59:00,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 20:59:00,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554281842] [2023-11-21 20:59:00,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:59:00,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 20:59:00,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:59:00,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 20:59:00,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:59:00,216 INFO L87 Difference]: Start difference. First operand 1695 states and 2376 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)