./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --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 fcd76f3400222a7434b370a764d7267d42d60812577a6e3d633d4f9c70f9f427 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 15:22:51,498 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 15:22:51,576 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-11 15:22:51,581 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 15:22:51,582 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 15:22:51,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 15:22:51,604 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 15:22:51,605 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 15:22:51,605 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 15:22:51,605 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 15:22:51,606 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 15:22:51,608 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 15:22:51,609 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 15:22:51,611 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 15:22:51,611 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 15:22:51,612 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 15:22:51,612 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 15:22:51,612 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 15:22:51,613 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 15:22:51,613 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 15:22:51,616 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 15:22:51,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 15:22:51,617 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 15:22:51,617 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 15:22:51,617 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 15:22:51,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 15:22:51,618 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 15:22:51,618 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 15:22:51,618 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 15:22:51,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 15:22:51,619 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 15:22:51,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 15:22:51,619 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 15:22:51,619 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 15:22:51,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 15:22:51,620 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 15:22:51,620 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 15:22:51,621 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 15:22:51,621 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 15:22:51,622 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:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcd76f3400222a7434b370a764d7267d42d60812577a6e3d633d4f9c70f9f427 [2024-10-11 15:22:51,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 15:22:51,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 15:22:51,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 15:22:51,889 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 15:22:51,889 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 15:22:51,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2024-10-11 15:22:53,294 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 15:22:53,604 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 15:22:53,605 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2024-10-11 15:22:53,628 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/695d0730f/f95fd05d7d9c44ad8d1fdde4f443478d/FLAGb5a7a005d [2024-10-11 15:22:53,643 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/695d0730f/f95fd05d7d9c44ad8d1fdde4f443478d [2024-10-11 15:22:53,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 15:22:53,648 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 15:22:53,650 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 15:22:53,651 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 15:22:53,656 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 15:22:53,657 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:22:53" (1/1) ... [2024-10-11 15:22:53,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bc8f525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:53, skipping insertion in model container [2024-10-11 15:22:53,660 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:22:53" (1/1) ... [2024-10-11 15:22:53,719 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 15:22:54,049 WARN L1336 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1334] [2024-10-11 15:22:54,050 WARN L1336 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1335-1336] [2024-10-11 15:22:54,124 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i[42973,42986] [2024-10-11 15:22:54,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 15:22:54,364 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 15:22:54,422 WARN L1336 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1334] [2024-10-11 15:22:54,423 WARN L1336 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1335-1336] [2024-10-11 15:22:54,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [1449] [2024-10-11 15:22:54,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [1457] [2024-10-11 15:22:54,432 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i[42973,42986] [2024-10-11 15:22:54,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 15:22:54,544 INFO L204 MainTranslator]: Completed translation [2024-10-11 15:22:54,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:54 WrapperNode [2024-10-11 15:22:54,545 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 15:22:54,546 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 15:22:54,546 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 15:22:54,547 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 15:22:54,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:54" (1/1) ... [2024-10-11 15:22:54,589 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:54" (1/1) ... [2024-10-11 15:22:54,672 INFO L138 Inliner]: procedures = 77, calls = 402, calls flagged for inlining = 27, calls inlined = 25, statements flattened = 1096 [2024-10-11 15:22:54,672 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 15:22:54,673 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 15:22:54,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 15:22:54,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 15:22:54,685 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:54" (1/1) ... [2024-10-11 15:22:54,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:54" (1/1) ... [2024-10-11 15:22:54,703 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:54" (1/1) ... [2024-10-11 15:22:54,763 INFO L175 MemorySlicer]: Split 287 memory accesses to 6 slices as follows [2, 213, 23, 26, 5, 18]. 74 percent of accesses are in the largest equivalence class. The 256 initializations are split as follows [2, 213, 23, 2, 0, 16]. The 11 writes are split as follows [0, 0, 0, 11, 0, 0]. [2024-10-11 15:22:54,763 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:54" (1/1) ... [2024-10-11 15:22:54,763 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:54" (1/1) ... [2024-10-11 15:22:54,792 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:54" (1/1) ... [2024-10-11 15:22:54,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:54" (1/1) ... [2024-10-11 15:22:54,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:54" (1/1) ... [2024-10-11 15:22:54,809 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:54" (1/1) ... [2024-10-11 15:22:54,819 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 15:22:54,821 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 15:22:54,821 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 15:22:54,821 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 15:22:54,823 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:54" (1/1) ... [2024-10-11 15:22:54,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 15:22:54,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 15:22:54,864 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 15:22:54,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 15:22:54,919 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2024-10-11 15:22:54,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2024-10-11 15:22:54,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 15:22:54,921 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2024-10-11 15:22:54,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2024-10-11 15:22:54,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 15:22:54,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 15:22:54,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-11 15:22:54,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-11 15:22:54,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-11 15:22:54,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-11 15:22:54,922 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-10-11 15:22:54,922 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-10-11 15:22:54,922 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2024-10-11 15:22:54,922 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2024-10-11 15:22:54,923 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_free_port [2024-10-11 15:22:54,923 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_free_port [2024-10-11 15:22:54,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-10-11 15:22:54,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-10-11 15:22:54,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 15:22:54,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 15:22:54,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 15:22:54,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 15:22:54,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-11 15:22:54,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-11 15:22:54,924 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_port [2024-10-11 15:22:54,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_port [2024-10-11 15:22:54,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 15:22:54,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 15:22:54,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-11 15:22:54,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-11 15:22:54,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-11 15:22:54,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-11 15:22:54,925 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_allocate_port [2024-10-11 15:22:54,925 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_allocate_port [2024-10-11 15:22:54,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-10-11 15:22:54,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-10-11 15:22:54,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 15:22:54,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-11 15:22:54,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-11 15:22:54,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-11 15:22:54,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-11 15:22:54,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-11 15:22:54,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-11 15:22:54,927 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-10-11 15:22:54,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-10-11 15:22:54,927 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-10-11 15:22:54,927 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-10-11 15:22:54,927 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-10-11 15:22:54,927 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-10-11 15:22:54,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 15:22:54,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 15:22:54,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 15:22:54,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 15:22:54,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-11 15:22:54,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-11 15:22:54,928 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_name [2024-10-11 15:22:54,929 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_name [2024-10-11 15:22:54,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-10-11 15:22:54,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-10-11 15:22:54,930 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-10-11 15:22:54,931 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-10-11 15:22:54,931 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-10-11 15:22:54,931 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-10-11 15:22:54,931 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_phys [2024-10-11 15:22:54,931 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_phys [2024-10-11 15:22:54,931 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-10-11 15:22:54,931 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-10-11 15:22:54,932 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 15:22:54,932 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 15:22:54,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 15:22:54,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 15:22:54,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 15:22:54,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 15:22:54,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 15:22:54,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-11 15:22:54,933 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2024-10-11 15:22:54,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2024-10-11 15:22:54,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 15:22:54,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-10-11 15:22:54,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-10-11 15:22:54,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 15:22:54,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 15:22:55,174 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 15:22:55,176 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 15:22:55,225 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-10-11 15:22:56,104 INFO L? ?]: Removed 323 outVars from TransFormulas that were not future-live. [2024-10-11 15:22:56,104 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 15:22:56,179 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 15:22:56,180 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 15:22:56,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:22:56 BoogieIcfgContainer [2024-10-11 15:22:56,180 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 15:22:56,184 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 15:22:56,185 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 15:22:56,188 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 15:22:56,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:22:53" (1/3) ... [2024-10-11 15:22:56,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2b0fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:22:56, skipping insertion in model container [2024-10-11 15:22:56,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:22:54" (2/3) ... [2024-10-11 15:22:56,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2b0fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:22:56, skipping insertion in model container [2024-10-11 15:22:56,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:22:56" (3/3) ... [2024-10-11 15:22:56,191 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2024-10-11 15:22:56,206 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 15:22:56,207 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 15:22:56,275 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 15:22:56,283 INFO L333 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, 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;@3302a34d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 15:22:56,284 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 15:22:56,288 INFO L276 IsEmpty]: Start isEmpty. Operand has 308 states, 223 states have (on average 1.4260089686098654) internal successors, (318), 228 states have internal predecessors, (318), 63 states have call successors, (63), 21 states have call predecessors, (63), 20 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-11 15:22:56,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-11 15:22:56,300 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:22:56,301 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-11 15:22:56,301 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:22:56,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:22:56,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1563950564, now seen corresponding path program 1 times [2024-10-11 15:22:56,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:22:56,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849206294] [2024-10-11 15:22:56,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:22:56,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:22:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:56,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 15:22:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:56,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 15:22:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:56,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 15:22:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:56,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 15:22:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:56,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-11 15:22:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:56,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 15:22:56,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:56,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 15:22:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:56,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 15:22:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:56,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 15:22:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:56,903 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 15:22:56,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:22:56,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849206294] [2024-10-11 15:22:56,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849206294] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:22:56,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 15:22:56,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 15:22:56,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956687016] [2024-10-11 15:22:56,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:22:56,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 15:22:56,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:22:56,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 15:22:56,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 15:22:56,944 INFO L87 Difference]: Start difference. First operand has 308 states, 223 states have (on average 1.4260089686098654) internal successors, (318), 228 states have internal predecessors, (318), 63 states have call successors, (63), 21 states have call predecessors, (63), 20 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-11 15:22:57,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:22:57,497 INFO L93 Difference]: Finished difference Result 621 states and 912 transitions. [2024-10-11 15:22:57,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 15:22:57,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 67 [2024-10-11 15:22:57,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:22:57,515 INFO L225 Difference]: With dead ends: 621 [2024-10-11 15:22:57,516 INFO L226 Difference]: Without dead ends: 300 [2024-10-11 15:22:57,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 15:22:57,527 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 45 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 15:22:57,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 894 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 15:22:57,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-10-11 15:22:57,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 292. [2024-10-11 15:22:57,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 214 states have (on average 1.3878504672897196) internal successors, (297), 214 states have internal predecessors, (297), 58 states have call successors, (58), 20 states have call predecessors, (58), 19 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-10-11 15:22:57,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 412 transitions. [2024-10-11 15:22:57,586 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 412 transitions. Word has length 67 [2024-10-11 15:22:57,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:22:57,587 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 412 transitions. [2024-10-11 15:22:57,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-11 15:22:57,587 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 412 transitions. [2024-10-11 15:22:57,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-11 15:22:57,591 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:22:57,591 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-11 15:22:57,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 15:22:57,591 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:22:57,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:22:57,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1174967257, now seen corresponding path program 1 times [2024-10-11 15:22:57,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:22:57,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648135319] [2024-10-11 15:22:57,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:22:57,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:22:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:57,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 15:22:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:57,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 15:22:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:57,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 15:22:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:57,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 15:22:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:57,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-11 15:22:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:57,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 15:22:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:57,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 15:22:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:57,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 15:22:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:57,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 15:22:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:57,921 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 15:22:57,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:22:57,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648135319] [2024-10-11 15:22:57,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648135319] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:22:57,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 15:22:57,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 15:22:57,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048951636] [2024-10-11 15:22:57,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:22:57,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 15:22:57,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:22:57,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 15:22:57,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 15:22:57,926 INFO L87 Difference]: Start difference. First operand 292 states and 412 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-11 15:22:58,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:22:58,508 INFO L93 Difference]: Finished difference Result 665 states and 966 transitions. [2024-10-11 15:22:58,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 15:22:58,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 69 [2024-10-11 15:22:58,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:22:58,513 INFO L225 Difference]: With dead ends: 665 [2024-10-11 15:22:58,513 INFO L226 Difference]: Without dead ends: 384 [2024-10-11 15:22:58,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 15:22:58,515 INFO L432 NwaCegarLoop]: 365 mSDtfsCounter, 170 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 15:22:58,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 879 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 15:22:58,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-10-11 15:22:58,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 356. [2024-10-11 15:22:58,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 268 states have (on average 1.3843283582089552) internal successors, (371), 268 states have internal predecessors, (371), 68 states have call successors, (68), 20 states have call predecessors, (68), 19 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-10-11 15:22:58,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 506 transitions. [2024-10-11 15:22:58,576 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 506 transitions. Word has length 69 [2024-10-11 15:22:58,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:22:58,577 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 506 transitions. [2024-10-11 15:22:58,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-11 15:22:58,577 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 506 transitions. [2024-10-11 15:22:58,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-11 15:22:58,580 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:22:58,581 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-11 15:22:58,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 15:22:58,581 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:22:58,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:22:58,582 INFO L85 PathProgramCache]: Analyzing trace with hash -745776760, now seen corresponding path program 1 times [2024-10-11 15:22:58,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:22:58,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434522615] [2024-10-11 15:22:58,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:22:58,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:22:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:58,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 15:22:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:58,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 15:22:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:58,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 15:22:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:58,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 15:22:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:58,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 15:22:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:58,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 15:22:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:58,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 15:22:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:58,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 15:22:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:58,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 15:22:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:58,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 15:22:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:58,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 15:22:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:58,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 15:22:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:58,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 15:22:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:58,788 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-10-11 15:22:58,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:22:58,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434522615] [2024-10-11 15:22:58,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434522615] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:22:58,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 15:22:58,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 15:22:58,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492632293] [2024-10-11 15:22:58,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:22:58,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 15:22:58,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:22:58,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 15:22:58,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 15:22:58,791 INFO L87 Difference]: Start difference. First operand 356 states and 506 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-11 15:22:59,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:22:59,341 INFO L93 Difference]: Finished difference Result 997 states and 1424 transitions. [2024-10-11 15:22:59,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 15:22:59,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 88 [2024-10-11 15:22:59,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:22:59,347 INFO L225 Difference]: With dead ends: 997 [2024-10-11 15:22:59,347 INFO L226 Difference]: Without dead ends: 652 [2024-10-11 15:22:59,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-11 15:22:59,350 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 434 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 15:22:59,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 896 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 15:22:59,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2024-10-11 15:22:59,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 637. [2024-10-11 15:22:59,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 487 states have (on average 1.3901437371663243) internal successors, (677), 487 states have internal predecessors, (677), 114 states have call successors, (114), 36 states have call predecessors, (114), 35 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-10-11 15:22:59,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 904 transitions. [2024-10-11 15:22:59,385 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 904 transitions. Word has length 88 [2024-10-11 15:22:59,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:22:59,385 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 904 transitions. [2024-10-11 15:22:59,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-11 15:22:59,386 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 904 transitions. [2024-10-11 15:22:59,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-11 15:22:59,388 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:22:59,389 INFO L215 NwaCegarLoop]: trace histogram [5, 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] [2024-10-11 15:22:59,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 15:22:59,389 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:22:59,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:22:59,390 INFO L85 PathProgramCache]: Analyzing trace with hash -642719225, now seen corresponding path program 1 times [2024-10-11 15:22:59,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:22:59,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298776577] [2024-10-11 15:22:59,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:22:59,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:22:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:59,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 15:22:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:59,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 15:22:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:59,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 15:22:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:59,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 15:22:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:59,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-11 15:22:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:59,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 15:22:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:59,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 15:22:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:59,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 15:22:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:59,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 15:22:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:59,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 15:22:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:59,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 15:22:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:59,611 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 15:22:59,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:22:59,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298776577] [2024-10-11 15:22:59,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298776577] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 15:22:59,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759668844] [2024-10-11 15:22:59,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:22:59,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 15:22:59,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 15:22:59,614 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 15:22:59,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 15:22:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:22:59,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 15:22:59,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 15:22:59,926 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-11 15:22:59,927 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 15:22:59,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759668844] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:22:59,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 15:22:59,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-11 15:22:59,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902103326] [2024-10-11 15:22:59,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:22:59,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 15:22:59,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:22:59,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 15:22:59,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 15:22:59,929 INFO L87 Difference]: Start difference. First operand 637 states and 904 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-11 15:23:00,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:23:00,012 INFO L93 Difference]: Finished difference Result 642 states and 910 transitions. [2024-10-11 15:23:00,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 15:23:00,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 83 [2024-10-11 15:23:00,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:23:00,020 INFO L225 Difference]: With dead ends: 642 [2024-10-11 15:23:00,020 INFO L226 Difference]: Without dead ends: 639 [2024-10-11 15:23:00,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 15:23:00,023 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 0 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 15:23:00,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 765 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 15:23:00,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-10-11 15:23:00,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 639. [2024-10-11 15:23:00,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 489 states have (on average 1.3885480572597138) internal successors, (679), 489 states have internal predecessors, (679), 114 states have call successors, (114), 36 states have call predecessors, (114), 35 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-10-11 15:23:00,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 906 transitions. [2024-10-11 15:23:00,070 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 906 transitions. Word has length 83 [2024-10-11 15:23:00,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:23:00,071 INFO L471 AbstractCegarLoop]: Abstraction has 639 states and 906 transitions. [2024-10-11 15:23:00,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-11 15:23:00,071 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 906 transitions. [2024-10-11 15:23:00,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-11 15:23:00,073 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:23:00,073 INFO L215 NwaCegarLoop]: trace histogram [5, 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] [2024-10-11 15:23:00,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 15:23:00,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 15:23:00,275 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:23:00,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:23:00,275 INFO L85 PathProgramCache]: Analyzing trace with hash 842930331, now seen corresponding path program 1 times [2024-10-11 15:23:00,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:23:00,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748750536] [2024-10-11 15:23:00,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:23:00,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:23:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:00,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 15:23:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:00,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 15:23:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:00,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 15:23:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:00,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 15:23:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:00,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-11 15:23:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:00,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 15:23:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:00,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 15:23:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:00,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 15:23:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:00,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 15:23:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:00,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 15:23:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:00,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 15:23:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:00,532 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 15:23:00,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:23:00,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748750536] [2024-10-11 15:23:00,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748750536] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 15:23:00,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518152780] [2024-10-11 15:23:00,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:23:00,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 15:23:00,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 15:23:00,538 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 15:23:00,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 15:23:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:00,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 15:23:00,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 15:23:00,835 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-11 15:23:00,838 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 15:23:00,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518152780] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:23:00,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 15:23:00,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2024-10-11 15:23:00,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792413147] [2024-10-11 15:23:00,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:23:00,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 15:23:00,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:23:00,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 15:23:00,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 15:23:00,841 INFO L87 Difference]: Start difference. First operand 639 states and 906 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-11 15:23:01,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:23:01,002 INFO L93 Difference]: Finished difference Result 1479 states and 2134 transitions. [2024-10-11 15:23:01,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 15:23:01,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 85 [2024-10-11 15:23:01,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:23:01,008 INFO L225 Difference]: With dead ends: 1479 [2024-10-11 15:23:01,008 INFO L226 Difference]: Without dead ends: 851 [2024-10-11 15:23:01,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 15:23:01,011 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 125 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 15:23:01,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 708 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 15:23:01,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2024-10-11 15:23:01,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 757. [2024-10-11 15:23:01,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 593 states have (on average 1.4080944350758853) internal successors, (835), 593 states have internal predecessors, (835), 128 states have call successors, (128), 36 states have call predecessors, (128), 35 states have return successors, (127), 127 states have call predecessors, (127), 127 states have call successors, (127) [2024-10-11 15:23:01,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1090 transitions. [2024-10-11 15:23:01,046 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1090 transitions. Word has length 85 [2024-10-11 15:23:01,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:23:01,047 INFO L471 AbstractCegarLoop]: Abstraction has 757 states and 1090 transitions. [2024-10-11 15:23:01,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-11 15:23:01,047 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1090 transitions. [2024-10-11 15:23:01,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 15:23:01,048 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:23:01,048 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-11 15:23:01,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 15:23:01,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 15:23:01,250 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:23:01,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:23:01,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1967102249, now seen corresponding path program 1 times [2024-10-11 15:23:01,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:23:01,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236741513] [2024-10-11 15:23:01,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:23:01,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:23:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:01,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 15:23:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:01,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 15:23:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:01,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 15:23:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:01,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 15:23:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:01,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 15:23:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:01,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 15:23:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:01,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 15:23:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:01,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 15:23:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:01,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 15:23:01,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:01,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 15:23:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:01,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 15:23:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:01,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 15:23:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:01,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 15:23:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:01,564 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-11 15:23:01,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:23:01,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236741513] [2024-10-11 15:23:01,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236741513] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 15:23:01,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117333319] [2024-10-11 15:23:01,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:23:01,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 15:23:01,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 15:23:01,567 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 15:23:01,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 15:23:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:23:01,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 1185 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 15:23:01,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 15:23:02,052 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-10-11 15:23:02,053 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 15:23:02,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117333319] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:23:02,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 15:23:02,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2024-10-11 15:23:02,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398135467] [2024-10-11 15:23:02,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:23:02,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 15:23:02,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:23:02,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 15:23:02,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-11 15:23:02,055 INFO L87 Difference]: Start difference. First operand 757 states and 1090 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-11 15:23:02,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:23:02,154 INFO L93 Difference]: Finished difference Result 1490 states and 2160 transitions. [2024-10-11 15:23:02,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 15:23:02,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 101 [2024-10-11 15:23:02,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:23:02,156 INFO L225 Difference]: With dead ends: 1490 [2024-10-11 15:23:02,156 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 15:23:02,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-11 15:23:02,159 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 336 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 15:23:02,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 746 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 15:23:02,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 15:23:02,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 15:23:02,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 15:23:02,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 15:23:02,161 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2024-10-11 15:23:02,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:23:02,162 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 15:23:02,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-11 15:23:02,165 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 15:23:02,166 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 15:23:02,168 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 15:23:02,188 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 15:23:02,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 15:23:02,372 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-11 15:23:02,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 15:23:03,026 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 15:23:03,047 WARN L155 FloydHoareUtils]: Requires clause for kfree contained old-variable. Original clause: (= |old(#valid)| |#valid|) Eliminated clause: true [2024-10-11 15:23:03,049 WARN L155 FloydHoareUtils]: Requires clause for pnp_get_resource contained old-variable. Original clause: (and (= |old(#length)| |#length|) (= ~ldv_spin~0 0) (= |old(#valid)| |#valid|)) Eliminated clause: (= ~ldv_spin~0 0) [2024-10-11 15:23:03,054 WARN L155 FloydHoareUtils]: Requires clause for __request_region contained old-variable. Original clause: (and (= |old(#length)| |#length|) (= ~ldv_spin~0 0) (= |old(#valid)| |#valid|)) Eliminated clause: (= ~ldv_spin~0 0) [2024-10-11 15:23:03,057 WARN L155 FloydHoareUtils]: Requires clause for gameport_free_port contained old-variable. Original clause: (and (= ~ldv_spin~0 0) (= |old(#valid)| |#valid|)) Eliminated clause: (= ~ldv_spin~0 0) [2024-10-11 15:23:03,058 WARN L155 FloydHoareUtils]: Requires clause for ldv_malloc contained old-variable. Original clause: (and (= |old(#length)| |#length|) (= ~ldv_spin~0 0) (= |old(#valid)| |#valid|)) Eliminated clause: (= ~ldv_spin~0 0) [2024-10-11 15:23:03,061 WARN L155 FloydHoareUtils]: Requires clause for ldv_zalloc contained old-variable. Original clause: (and (= |old(#length)| |#length|) (= ~ldv_spin~0 0) (= ~ldv_state_variable_1~0 0) (= |old(#valid)| |#valid|) (= |#memory_int#3| |old(#memory_int#3)|)) Eliminated clause: (and (= ~ldv_spin~0 0) (= ~ldv_state_variable_1~0 0)) [2024-10-11 15:23:03,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:23:03 BoogieIcfgContainer [2024-10-11 15:23:03,065 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 15:23:03,066 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 15:23:03,066 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 15:23:03,067 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 15:23:03,068 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:22:56" (3/4) ... [2024-10-11 15:23:03,070 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 15:23:03,075 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __list_add [2024-10-11 15:23:03,075 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure outb [2024-10-11 15:23:03,075 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __release_region [2024-10-11 15:23:03,075 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kfree [2024-10-11 15:23:03,075 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pnp_get_resource [2024-10-11 15:23:03,075 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-10-11 15:23:03,075 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-10-11 15:23:03,075 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure gameport_allocate_port [2024-10-11 15:23:03,076 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure msleep [2024-10-11 15:23:03,077 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pnp_resource_valid [2024-10-11 15:23:03,077 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __request_region [2024-10-11 15:23:03,077 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure gameport_set_name [2024-10-11 15:23:03,077 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure gameport_free_port [2024-10-11 15:23:03,077 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-10-11 15:23:03,078 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-10-11 15:23:03,078 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kzalloc [2024-10-11 15:23:03,078 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_zalloc [2024-10-11 15:23:03,078 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2024-10-11 15:23:03,078 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure inb [2024-10-11 15:23:03,078 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure gameport_set_phys [2024-10-11 15:23:03,078 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __gameport_register_port [2024-10-11 15:23:03,105 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 91 nodes and edges [2024-10-11 15:23:03,109 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2024-10-11 15:23:03,110 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-11 15:23:03,112 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 15:23:03,113 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 15:23:03,334 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 15:23:03,335 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 15:23:03,335 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 15:23:03,336 INFO L158 Benchmark]: Toolchain (without parser) took 9687.57ms. Allocated memory was 140.5MB in the beginning and 295.7MB in the end (delta: 155.2MB). Free memory was 89.7MB in the beginning and 163.3MB in the end (delta: -73.7MB). Peak memory consumption was 81.2MB. Max. memory is 16.1GB. [2024-10-11 15:23:03,336 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 140.5MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 15:23:03,336 INFO L158 Benchmark]: CACSL2BoogieTranslator took 895.08ms. Allocated memory was 140.5MB in the beginning and 184.5MB in the end (delta: 44.0MB). Free memory was 89.3MB in the beginning and 132.6MB in the end (delta: -43.3MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2024-10-11 15:23:03,337 INFO L158 Benchmark]: Boogie Procedure Inliner took 126.33ms. Allocated memory is still 184.5MB. Free memory was 132.6MB in the beginning and 125.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-11 15:23:03,337 INFO L158 Benchmark]: Boogie Preprocessor took 146.44ms. Allocated memory is still 184.5MB. Free memory was 124.2MB in the beginning and 111.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-11 15:23:03,337 INFO L158 Benchmark]: RCFGBuilder took 1359.62ms. Allocated memory is still 184.5MB. Free memory was 111.6MB in the beginning and 89.3MB in the end (delta: 22.3MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2024-10-11 15:23:03,338 INFO L158 Benchmark]: TraceAbstraction took 6881.26ms. Allocated memory was 184.5MB in the beginning and 295.7MB in the end (delta: 111.1MB). Free memory was 88.3MB in the beginning and 199.0MB in the end (delta: -110.7MB). Peak memory consumption was 91.2MB. Max. memory is 16.1GB. [2024-10-11 15:23:03,338 INFO L158 Benchmark]: Witness Printer took 268.96ms. Allocated memory is still 295.7MB. Free memory was 199.0MB in the beginning and 163.3MB in the end (delta: 35.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-10-11 15:23:03,339 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 140.5MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 895.08ms. Allocated memory was 140.5MB in the beginning and 184.5MB in the end (delta: 44.0MB). Free memory was 89.3MB in the beginning and 132.6MB in the end (delta: -43.3MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 126.33ms. Allocated memory is still 184.5MB. Free memory was 132.6MB in the beginning and 125.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 146.44ms. Allocated memory is still 184.5MB. Free memory was 124.2MB in the beginning and 111.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1359.62ms. Allocated memory is still 184.5MB. Free memory was 111.6MB in the beginning and 89.3MB in the end (delta: 22.3MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6881.26ms. Allocated memory was 184.5MB in the beginning and 295.7MB in the end (delta: 111.1MB). Free memory was 88.3MB in the beginning and 199.0MB in the end (delta: -110.7MB). Peak memory consumption was 91.2MB. Max. memory is 16.1GB. * Witness Printer took 268.96ms. Allocated memory is still 295.7MB. Free memory was 199.0MB in the beginning and 163.3MB in the end (delta: 35.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 1449]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [1449] - GenericResultAtLocation [Line: 1457]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [1457] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1533]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 309 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1178 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1110 mSDsluCounter, 4888 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2669 mSDsCounter, 438 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1023 IncrementalHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 438 mSolverCounterUnsat, 2219 mSDtfsCounter, 1023 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 424 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=757occurred in iteration=5, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 145 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 762 NumberOfCodeBlocks, 762 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 753 ConstructedInterpolants, 0 QuantifiedInterpolants, 1245 SizeOfPredicates, 1 NumberOfNonLiveVariables, 3122 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 280/284 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1693]: Location Invariant Derived location invariant: (ldv_spin == 0) - InvariantResult [Line: 1593]: Location Invariant Derived location invariant: (ldv_spin == 0) - InvariantResult [Line: 1693]: Location Invariant Derived location invariant: (ldv_spin == 0) - InvariantResult [Line: 1536]: Location Invariant Derived location invariant: 1 - ProcedureContractResult [Line: 2129]: Procedure Contract for __list_add Derived contract for procedure __list_add. Requires: (ldv_spin == 0) Ensures: (ldv_spin == 0) - ProcedureContractResult [Line: 1446]: Procedure Contract for outb Derived contract for procedure outb. Requires: (ldv_spin == 0) Ensures: (ldv_spin == 0) - ProcedureContractResult [Line: 2163]: Procedure Contract for pnp_get_resource Derived contract for procedure pnp_get_resource. Requires: (ldv_spin == 0) Ensures: (ldv_spin == 0) - ProcedureContractResult [Line: 2174]: Procedure Contract for printk Derived contract for procedure printk. Requires: (ldv_spin == 0) Ensures: (ldv_spin == 0) - ProcedureContractResult [Line: 1476]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (ldv_spin == 0) Ensures: (ldv_spin == 0) - ProcedureContractResult [Line: 1576]: Procedure Contract for gameport_allocate_port Derived contract for procedure gameport_allocate_port. Requires: (ldv_spin == 0) Ensures: (ldv_spin == 0) - ProcedureContractResult [Line: 2160]: Procedure Contract for msleep Derived contract for procedure msleep. Requires: (ldv_spin == 0) Ensures: (ldv_spin == 0) - ProcedureContractResult [Line: 1601]: Procedure Contract for pnp_resource_valid Derived contract for procedure pnp_resource_valid. Requires: (ldv_spin == 0) Ensures: (ldv_spin == 0) - ProcedureContractResult [Line: 2135]: Procedure Contract for __request_region Derived contract for procedure __request_region. Requires: (ldv_spin == 0) Ensures: (ldv_spin == 0) - ProcedureContractResult [Line: 1593]: Procedure Contract for gameport_set_name Derived contract for procedure gameport_set_name. Requires: (ldv_spin == 0) Ensures: (ldv_spin == 0) - ProcedureContractResult [Line: 1586]: Procedure Contract for gameport_free_port Derived contract for procedure gameport_free_port. Requires: (ldv_spin == 0) Ensures: (ldv_spin == 0) - ProcedureContractResult [Line: 1479]: Procedure Contract for ldv_malloc Derived contract for procedure ldv_malloc. Requires: (ldv_spin == 0) Ensures: (ldv_spin == 0) - ProcedureContractResult [Line: 1529]: Procedure Contract for ldv_error Derived contract for procedure ldv_error. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 2057]: Procedure Contract for kzalloc Derived contract for procedure kzalloc. Requires: (ldv_spin == 0) Ensures: (ldv_spin == 0) - ProcedureContractResult [Line: 1496]: Procedure Contract for ldv_zalloc Derived contract for procedure ldv_zalloc. Requires: ((ldv_spin == 0) && (ldv_state_variable_1 == 0)) Ensures: ((ldv_spin == 0) && (ldv_state_variable_1 == 0)) - ProcedureContractResult [Line: 1453]: Procedure Contract for inb Derived contract for procedure inb. Requires: (ldv_spin == 0) Ensures: (ldv_spin == 0) - ProcedureContractResult [Line: 2138]: Procedure Contract for gameport_set_phys Derived contract for procedure gameport_set_phys. Requires: (ldv_spin == 0) Ensures: (ldv_spin == 0) - ProcedureContractResult [Line: 2126]: Procedure Contract for __gameport_register_port Derived contract for procedure __gameport_register_port. Requires: (ldv_spin == 0) Ensures: (ldv_spin == 0) RESULT: Ultimate proved your program to be correct! [2024-10-11 15:23:03,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE