./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 73e11d79da89f19153d89e853a8d4a3607f25d95ae579da9c148a59839e48ce3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 17:38:34,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 17:38:34,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 17:38:34,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 17:38:34,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 17:38:34,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 17:38:34,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 17:38:34,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 17:38:34,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 17:38:34,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 17:38:34,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 17:38:34,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 17:38:34,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 17:38:34,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 17:38:34,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 17:38:34,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 17:38:34,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 17:38:34,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 17:38:34,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 17:38:34,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 17:38:34,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 17:38:34,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 17:38:34,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 17:38:34,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 17:38:34,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 17:38:34,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 17:38:34,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 17:38:34,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 17:38:34,068 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 17:38:34,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 17:38:34,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 17:38:34,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 17:38:34,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 17:38:34,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 17:38:34,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 17:38:34,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 17:38:34,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 17:38:34,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 17:38:34,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 17:38:34,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 17:38:34,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 17:38:34,078 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 17:38:34,098 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 17:38:34,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 17:38:34,100 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 17:38:34,100 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 17:38:34,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 17:38:34,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 17:38:34,101 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 17:38:34,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 17:38:34,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 17:38:34,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 17:38:34,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 17:38:34,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 17:38:34,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 17:38:34,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 17:38:34,103 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 17:38:34,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 17:38:34,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 17:38:34,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 17:38:34,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 17:38:34,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:38:34,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 17:38:34,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 17:38:34,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 17:38:34,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 17:38:34,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 17:38:34,105 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 17:38:34,105 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 17:38:34,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 17:38:34,105 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 17:38:34,106 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73e11d79da89f19153d89e853a8d4a3607f25d95ae579da9c148a59839e48ce3 [2021-11-06 17:38:34,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 17:38:34,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 17:38:34,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 17:38:34,315 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 17:38:34,315 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 17:38:34,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2021-11-06 17:38:34,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f9c06a27/e7b58fe52a354ef7a38b2b46d0b417ca/FLAG83415aeab [2021-11-06 17:38:34,985 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 17:38:34,985 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2021-11-06 17:38:35,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f9c06a27/e7b58fe52a354ef7a38b2b46d0b417ca/FLAG83415aeab [2021-11-06 17:38:35,347 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f9c06a27/e7b58fe52a354ef7a38b2b46d0b417ca [2021-11-06 17:38:35,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 17:38:35,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 17:38:35,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 17:38:35,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 17:38:35,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 17:38:35,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:38:35" (1/1) ... [2021-11-06 17:38:35,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@272df900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:38:35, skipping insertion in model container [2021-11-06 17:38:35,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:38:35" (1/1) ... [2021-11-06 17:38:35,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 17:38:35,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 17:38:38,566 WARN L228 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[468644,468657] [2021-11-06 17:38:38,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:38:38,712 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 17:38:38,992 WARN L228 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[468644,468657] [2021-11-06 17:38:38,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:38:39,069 INFO L208 MainTranslator]: Completed translation [2021-11-06 17:38:39,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:38:39 WrapperNode [2021-11-06 17:38:39,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 17:38:39,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 17:38:39,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 17:38:39,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 17:38:39,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:38:39" (1/1) ... [2021-11-06 17:38:39,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:38:39" (1/1) ... [2021-11-06 17:38:42,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 17:38:42,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 17:38:42,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 17:38:42,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 17:38:42,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:38:39" (1/1) ... [2021-11-06 17:38:42,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:38:39" (1/1) ... [2021-11-06 17:38:43,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:38:39" (1/1) ... [2021-11-06 17:38:43,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:38:39" (1/1) ... [2021-11-06 17:38:45,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:38:39" (1/1) ... [2021-11-06 17:38:45,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:38:39" (1/1) ... [2021-11-06 17:38:45,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:38:39" (1/1) ... [2021-11-06 17:38:46,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 17:38:46,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 17:38:46,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 17:38:46,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 17:38:46,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:38:39" (1/1) ... [2021-11-06 17:38:46,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:38:46,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:38:46,506 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 17:38:46,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 17:38:46,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 17:38:46,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 17:38:46,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 17:38:46,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 17:38:46,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 17:38:46,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 17:38:46,530 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 17:38:46,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 17:38:46,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 17:38:46,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 17:38:46,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 17:38:46,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 17:38:46,531 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2021-11-06 17:38:46,531 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2021-11-06 17:38:46,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 17:38:46,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 17:38:46,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 17:38:46,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 17:38:46,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 17:39:35,232 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 17:39:35,233 INFO L299 CfgBuilder]: Removed 40710 assume(true) statements. [2021-11-06 17:39:35,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:39:35 BoogieIcfgContainer [2021-11-06 17:39:35,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 17:39:35,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 17:39:35,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 17:39:35,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 17:39:35,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 05:38:35" (1/3) ... [2021-11-06 17:39:35,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f962120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:39:35, skipping insertion in model container [2021-11-06 17:39:35,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:38:39" (2/3) ... [2021-11-06 17:39:35,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f962120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:39:35, skipping insertion in model container [2021-11-06 17:39:35,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:39:35" (3/3) ... [2021-11-06 17:39:35,253 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2021-11-06 17:39:35,256 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 17:39:35,256 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-06 17:39:35,335 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 17:39:35,339 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 17:39:35,339 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-06 17:39:35,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 23420 states, 23402 states have (on average 1.2447226732757883) internal successors, (29129), 23414 states have internal predecessors, (29129), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-06 17:39:35,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-06 17:39:35,570 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:39:35,570 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:39:35,571 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 17:39:35,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:39:35,575 INFO L85 PathProgramCache]: Analyzing trace with hash -636847731, now seen corresponding path program 1 times [2021-11-06 17:39:35,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:39:35,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493178170] [2021-11-06 17:39:35,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:39:35,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:39:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:39:36,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:39:36,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:39:36,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493178170] [2021-11-06 17:39:36,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493178170] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:39:36,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:39:36,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:39:36,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229058107] [2021-11-06 17:39:36,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 17:39:36,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:39:36,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 17:39:36,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:39:36,461 INFO L87 Difference]: Start difference. First operand has 23420 states, 23402 states have (on average 1.2447226732757883) internal successors, (29129), 23414 states have internal predecessors, (29129), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 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) [2021-11-06 17:39:36,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:39:36,931 INFO L93 Difference]: Finished difference Result 46368 states and 57649 transitions. [2021-11-06 17:39:36,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 17:39:36,933 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 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) Word has length 82 [2021-11-06 17:39:36,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:39:37,032 INFO L225 Difference]: With dead ends: 46368 [2021-11-06 17:39:37,033 INFO L226 Difference]: Without dead ends: 22869 [2021-11-06 17:39:37,108 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:39:37,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22869 states. [2021-11-06 17:39:37,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22869 to 22869. [2021-11-06 17:39:37,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22869 states, 22852 states have (on average 1.2310519866970069) internal successors, (28132), 22863 states have internal predecessors, (28132), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-06 17:39:37,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22869 states to 22869 states and 28140 transitions. [2021-11-06 17:39:37,800 INFO L78 Accepts]: Start accepts. Automaton has 22869 states and 28140 transitions. Word has length 82 [2021-11-06 17:39:37,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:39:37,801 INFO L470 AbstractCegarLoop]: Abstraction has 22869 states and 28140 transitions. [2021-11-06 17:39:37,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 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) [2021-11-06 17:39:37,802 INFO L276 IsEmpty]: Start isEmpty. Operand 22869 states and 28140 transitions. [2021-11-06 17:39:37,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-06 17:39:37,808 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:39:37,808 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:39:37,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 17:39:37,809 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 17:39:37,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:39:37,811 INFO L85 PathProgramCache]: Analyzing trace with hash -582741599, now seen corresponding path program 1 times [2021-11-06 17:39:37,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:39:37,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379051127] [2021-11-06 17:39:37,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:39:37,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:39:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:39:38,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:39:38,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:39:38,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379051127] [2021-11-06 17:39:38,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379051127] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:39:38,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:39:38,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:39:38,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115060967] [2021-11-06 17:39:38,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:39:38,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:39:38,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:39:38,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:39:38,122 INFO L87 Difference]: Start difference. First operand 22869 states and 28140 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2021-11-06 17:39:38,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:39:38,980 INFO L93 Difference]: Finished difference Result 59256 states and 73094 transitions. [2021-11-06 17:39:38,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:39:38,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) Word has length 82 [2021-11-06 17:39:38,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:39:39,089 INFO L225 Difference]: With dead ends: 59256 [2021-11-06 17:39:39,090 INFO L226 Difference]: Without dead ends: 36457 [2021-11-06 17:39:39,152 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:39:39,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36457 states. [2021-11-06 17:39:39,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36457 to 36440. [2021-11-06 17:39:39,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36440 states, 36421 states have (on average 1.2357705719227918) internal successors, (45008), 36432 states have internal predecessors, (45008), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2021-11-06 17:39:39,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36440 states to 36440 states and 45020 transitions. [2021-11-06 17:39:39,915 INFO L78 Accepts]: Start accepts. Automaton has 36440 states and 45020 transitions. Word has length 82 [2021-11-06 17:39:39,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:39:39,916 INFO L470 AbstractCegarLoop]: Abstraction has 36440 states and 45020 transitions. [2021-11-06 17:39:39,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2021-11-06 17:39:39,916 INFO L276 IsEmpty]: Start isEmpty. Operand 36440 states and 45020 transitions. [2021-11-06 17:39:39,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-06 17:39:39,922 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:39:39,923 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:39:39,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 17:39:39,925 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 17:39:39,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:39:39,926 INFO L85 PathProgramCache]: Analyzing trace with hash 681882068, now seen corresponding path program 1 times [2021-11-06 17:39:39,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:39:39,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605624266] [2021-11-06 17:39:39,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:39:39,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:39:40,037 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 17:39:40,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1437480541] [2021-11-06 17:39:40,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:39:40,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:39:40,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:39:40,043 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 17:39:40,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-06 17:39:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:39:41,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 5104 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-06 17:39:41,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 17:39:42,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:39:42,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:39:42,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605624266] [2021-11-06 17:39:42,091 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 17:39:42,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437480541] [2021-11-06 17:39:42,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437480541] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:39:42,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:39:42,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:39:42,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965600603] [2021-11-06 17:39:42,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 17:39:42,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:39:42,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 17:39:42,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 17:39:42,093 INFO L87 Difference]: Start difference. First operand 36440 states and 45020 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-11-06 17:39:44,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:39:44,097 INFO L93 Difference]: Finished difference Result 163028 states and 201593 transitions. [2021-11-06 17:39:44,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 17:39:44,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 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) Word has length 101 [2021-11-06 17:39:44,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:39:44,624 INFO L225 Difference]: With dead ends: 163028 [2021-11-06 17:39:44,625 INFO L226 Difference]: Without dead ends: 126658 [2021-11-06 17:39:44,723 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 17:39:44,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126658 states. [2021-11-06 17:39:46,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126658 to 71242. [2021-11-06 17:39:46,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71242 states, 71215 states have (on average 1.2333777996208664) internal successors, (87835), 71227 states have internal predecessors, (87835), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (24), 14 states have call predecessors, (24), 8 states have call successors, (24) [2021-11-06 17:39:46,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71242 states to 71242 states and 87867 transitions. [2021-11-06 17:39:46,615 INFO L78 Accepts]: Start accepts. Automaton has 71242 states and 87867 transitions. Word has length 101 [2021-11-06 17:39:46,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:39:46,616 INFO L470 AbstractCegarLoop]: Abstraction has 71242 states and 87867 transitions. [2021-11-06 17:39:46,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-11-06 17:39:46,616 INFO L276 IsEmpty]: Start isEmpty. Operand 71242 states and 87867 transitions. [2021-11-06 17:39:46,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-06 17:39:46,625 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:39:46,625 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:39:46,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-06 17:39:46,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:39:46,848 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 17:39:46,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:39:46,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1647696270, now seen corresponding path program 1 times [2021-11-06 17:39:46,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:39:46,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814827410] [2021-11-06 17:39:46,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:39:46,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:39:47,136 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 17:39:47,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1310987842] [2021-11-06 17:39:47,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:39:47,137 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:39:47,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:39:47,138 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 17:39:47,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-06 17:39:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:39:48,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 5103 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-06 17:39:48,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 17:39:48,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:39:48,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:39:48,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814827410] [2021-11-06 17:39:48,953 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 17:39:48,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310987842] [2021-11-06 17:39:48,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310987842] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:39:48,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:39:48,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:39:48,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861623037] [2021-11-06 17:39:48,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 17:39:48,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:39:48,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 17:39:48,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 17:39:48,954 INFO L87 Difference]: Start difference. First operand 71242 states and 87867 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 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) [2021-11-06 17:39:53,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:39:53,944 INFO L93 Difference]: Finished difference Result 321602 states and 397304 transitions. [2021-11-06 17:39:53,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 17:39:53,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 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) Word has length 102 [2021-11-06 17:39:53,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:39:54,691 INFO L225 Difference]: With dead ends: 321602 [2021-11-06 17:39:54,692 INFO L226 Difference]: Without dead ends: 250430 [2021-11-06 17:39:54,874 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 17:39:55,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250430 states. [2021-11-06 17:39:58,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250430 to 142018. [2021-11-06 17:39:59,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142018 states, 141975 states have (on average 1.233139637260081) internal successors, (175075), 141989 states have internal predecessors, (175075), 16 states have call successors, (16), 8 states have call predecessors, (16), 16 states have return successors, (72), 28 states have call predecessors, (72), 16 states have call successors, (72) [2021-11-06 17:39:59,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142018 states to 142018 states and 175163 transitions. [2021-11-06 17:39:59,799 INFO L78 Accepts]: Start accepts. Automaton has 142018 states and 175163 transitions. Word has length 102 [2021-11-06 17:39:59,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:39:59,800 INFO L470 AbstractCegarLoop]: Abstraction has 142018 states and 175163 transitions. [2021-11-06 17:39:59,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 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) [2021-11-06 17:39:59,800 INFO L276 IsEmpty]: Start isEmpty. Operand 142018 states and 175163 transitions. [2021-11-06 17:39:59,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-06 17:39:59,805 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:39:59,806 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:39:59,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-06 17:40:00,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-11-06 17:40:00,024 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 17:40:00,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:40:00,025 INFO L85 PathProgramCache]: Analyzing trace with hash -309099541, now seen corresponding path program 1 times [2021-11-06 17:40:00,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:40:00,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833374779] [2021-11-06 17:40:00,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:40:00,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:40:00,126 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 17:40:00,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [107737067] [2021-11-06 17:40:00,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:40:00,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:40:00,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:40:00,128 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 17:40:00,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-06 17:40:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:40:01,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 5108 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-06 17:40:01,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 17:40:01,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:40:01,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:40:01,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833374779] [2021-11-06 17:40:01,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 17:40:01,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107737067] [2021-11-06 17:40:01,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107737067] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:40:01,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:40:01,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:40:01,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064828342] [2021-11-06 17:40:01,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 17:40:01,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:40:01,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 17:40:01,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 17:40:01,758 INFO L87 Difference]: Start difference. First operand 142018 states and 175163 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 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)