./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.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 d3eedf009c0354e40f9e91d5f02bdbd29fc69486fea85bd401e2764ccaedb5c6 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-02 18:47:30,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 18:47:30,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 18:47:30,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 18:47:30,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 18:47:30,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 18:47:30,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 18:47:30,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 18:47:30,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 18:47:30,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 18:47:30,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 18:47:30,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 18:47:30,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 18:47:30,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 18:47:30,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 18:47:30,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 18:47:30,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 18:47:30,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 18:47:30,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 18:47:30,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 18:47:30,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 18:47:30,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 18:47:30,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 18:47:30,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 18:47:30,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 18:47:30,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 18:47:30,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 18:47:30,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 18:47:30,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 18:47:30,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 18:47:30,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 18:47:30,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 18:47:30,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 18:47:30,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 18:47:30,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 18:47:30,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 18:47:30,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 18:47:30,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 18:47:30,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 18:47:30,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 18:47:30,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 18:47:30,606 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 18:47:30,634 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 18:47:30,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 18:47:30,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 18:47:30,635 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 18:47:30,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 18:47:30,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 18:47:30,636 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 18:47:30,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 18:47:30,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 18:47:30,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 18:47:30,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 18:47:30,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 18:47:30,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 18:47:30,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 18:47:30,638 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 18:47:30,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 18:47:30,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 18:47:30,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 18:47:30,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 18:47:30,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 18:47:30,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 18:47:30,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 18:47:30,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 18:47:30,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 18:47:30,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 18:47:30,641 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 18:47:30,641 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 18:47:30,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 18:47:30,642 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 18:47:30,642 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3eedf009c0354e40f9e91d5f02bdbd29fc69486fea85bd401e2764ccaedb5c6 [2021-11-02 18:47:30,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 18:47:30,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 18:47:30,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 18:47:30,876 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 18:47:30,877 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 18:47:30,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i [2021-11-02 18:47:30,946 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adf51f1b8/293c6ecd91354cb382025a7986847ee6/FLAG4e2edcaa2 [2021-11-02 18:47:31,663 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 18:47:31,663 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i [2021-11-02 18:47:31,714 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adf51f1b8/293c6ecd91354cb382025a7986847ee6/FLAG4e2edcaa2 [2021-11-02 18:47:32,212 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adf51f1b8/293c6ecd91354cb382025a7986847ee6 [2021-11-02 18:47:32,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 18:47:32,216 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 18:47:32,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 18:47:32,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 18:47:32,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 18:47:32,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 06:47:32" (1/1) ... [2021-11-02 18:47:32,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47888f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:47:32, skipping insertion in model container [2021-11-02 18:47:32,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 06:47:32" (1/1) ... [2021-11-02 18:47:32,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 18:47:32,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 18:47:33,082 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i[223980,223993] [2021-11-02 18:47:36,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 18:47:36,142 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 18:47:36,230 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i[223980,223993] [2021-11-02 18:47:36,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 18:47:36,688 INFO L208 MainTranslator]: Completed translation [2021-11-02 18:47:36,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:47:36 WrapperNode [2021-11-02 18:47:36,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 18:47:36,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 18:47:36,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 18:47:36,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 18:47:36,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:47:36" (1/1) ... [2021-11-02 18:47:36,890 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:47:36" (1/1) ... [2021-11-02 18:47:38,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 18:47:38,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 18:47:38,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 18:47:38,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 18:47:38,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:47:36" (1/1) ... [2021-11-02 18:47:38,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:47:36" (1/1) ... [2021-11-02 18:47:38,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:47:36" (1/1) ... [2021-11-02 18:47:38,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:47:36" (1/1) ... [2021-11-02 18:47:39,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:47:36" (1/1) ... [2021-11-02 18:47:39,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:47:36" (1/1) ... [2021-11-02 18:47:39,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:47:36" (1/1) ... [2021-11-02 18:47:39,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 18:47:39,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 18:47:39,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 18:47:39,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 18:47:39,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:47:36" (1/1) ... [2021-11-02 18:47:39,946 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 18:47:39,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 18:47:39,962 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) [2021-11-02 18:47:39,980 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 [2021-11-02 18:47:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-02 18:47:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 18:47:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 18:47:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 18:47:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 18:47:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2021-11-02 18:47:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 18:47:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 18:47:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-02 18:47:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 18:47:39,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 18:47:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 18:47:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 18:47:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-02 18:47:39,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-02 18:47:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 18:47:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 18:47:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_get_hw_reg [2021-11-02 18:47:39,989 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_get_hw_reg [2021-11-02 18:47:39,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 18:47:39,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 18:47:39,989 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_set_hw_reg [2021-11-02 18:47:39,989 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_set_hw_reg [2021-11-02 18:47:39,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 18:47:39,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2021-11-02 18:48:18,788 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 18:48:18,789 INFO L299 CfgBuilder]: Removed 10707 assume(true) statements. [2021-11-02 18:48:18,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 06:48:18 BoogieIcfgContainer [2021-11-02 18:48:18,804 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 18:48:18,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 18:48:18,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 18:48:18,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 18:48:18,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 06:47:32" (1/3) ... [2021-11-02 18:48:18,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2cff9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 06:48:18, skipping insertion in model container [2021-11-02 18:48:18,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:47:36" (2/3) ... [2021-11-02 18:48:18,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2cff9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 06:48:18, skipping insertion in model container [2021-11-02 18:48:18,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 06:48:18" (3/3) ... [2021-11-02 18:48:18,810 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i [2021-11-02 18:48:18,816 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 18:48:18,816 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-02 18:48:18,884 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 18:48:18,891 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 [2021-11-02 18:48:18,892 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-02 18:48:19,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 14854 states, 14811 states have (on average 1.5042873539936534) internal successors, (22280), 14813 states have internal predecessors, (22280), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-02 18:48:19,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-02 18:48:19,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 18:48:19,070 INFO L514 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] [2021-11-02 18:48:19,073 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 18:48:19,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 18:48:19,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1219957156, now seen corresponding path program 1 times [2021-11-02 18:48:19,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 18:48:19,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50062833] [2021-11-02 18:48:19,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 18:48:19,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 18:48:19,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 18:48:20,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 18:48:20,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 18:48:20,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50062833] [2021-11-02 18:48:20,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50062833] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 18:48:20,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 18:48:20,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 18:48:20,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977667988] [2021-11-02 18:48:20,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 18:48:20,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 18:48:20,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 18:48:20,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 18:48:20,401 INFO L87 Difference]: Start difference. First operand has 14854 states, 14811 states have (on average 1.5042873539936534) internal successors, (22280), 14813 states have internal predecessors, (22280), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2021-11-02 18:48:22,649 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 18:48:28,969 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 18:48:31,065 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 18:48:33,419 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 18:53:14,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 18:53:14,598 INFO L93 Difference]: Finished difference Result 29709 states and 44717 transitions. [2021-11-02 18:53:14,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 18:53:14,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 85 [2021-11-02 18:53:14,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 18:53:14,676 INFO L225 Difference]: With dead ends: 29709 [2021-11-02 18:53:14,677 INFO L226 Difference]: Without dead ends: 14843 [2021-11-02 18:53:14,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.33ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 18:53:14,718 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 22242 mSDsCounter, 0 mSdLazyCounter, 44442 mSolverCounterSat, 10 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 280839.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 44456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 297.84ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 44442 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 291714.09ms IncrementalHoareTripleChecker+Time [2021-11-02 18:53:14,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 178 Invalid, 44456 Unknown, 0 Unchecked, 297.84ms Time], IncrementalHoareTripleChecker [10 Valid, 44442 Invalid, 4 Unknown, 0 Unchecked, 291714.09ms Time] [2021-11-02 18:53:14,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14843 states. [2021-11-02 18:53:15,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14843 to 14843. [2021-11-02 18:53:15,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14843 states, 14801 states have (on average 1.5010472265387473) internal successors, (22217), 14802 states have internal predecessors, (22217), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-02 18:53:15,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14843 states to 14843 states and 22293 transitions. [2021-11-02 18:53:15,157 INFO L78 Accepts]: Start accepts. Automaton has 14843 states and 22293 transitions. Word has length 85 [2021-11-02 18:53:15,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 18:53:15,159 INFO L470 AbstractCegarLoop]: Abstraction has 14843 states and 22293 transitions. [2021-11-02 18:53:15,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2021-11-02 18:53:15,161 INFO L276 IsEmpty]: Start isEmpty. Operand 14843 states and 22293 transitions. [2021-11-02 18:53:15,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-02 18:53:15,166 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 18:53:15,166 INFO L514 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] [2021-11-02 18:53:15,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 18:53:15,167 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 18:53:15,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 18:53:15,168 INFO L85 PathProgramCache]: Analyzing trace with hash 765862984, now seen corresponding path program 1 times [2021-11-02 18:53:15,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 18:53:15,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317013064] [2021-11-02 18:53:15,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 18:53:15,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 18:53:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 18:53:15,918 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-02 18:53:15,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 18:53:15,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317013064] [2021-11-02 18:53:15,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317013064] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 18:53:15,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 18:53:15,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 18:53:15,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822820870] [2021-11-02 18:53:15,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 18:53:15,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 18:53:15,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 18:53:15,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 18:53:15,920 INFO L87 Difference]: Start difference. First operand 14843 states and 22293 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2021-11-02 18:53:18,142 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 18:53:24,620 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 18:53:26,707 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 18:53:28,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 18:58:41,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 18:58:41,346 INFO L93 Difference]: Finished difference Result 29587 states and 44473 transitions. [2021-11-02 18:58:41,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 18:58:41,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2021-11-02 18:58:41,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 18:58:41,393 INFO L225 Difference]: With dead ends: 29587 [2021-11-02 18:58:41,394 INFO L226 Difference]: Without dead ends: 14851 [2021-11-02 18:58:41,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.65ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 18:58:41,415 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 22212 mSDsCounter, 0 mSdLazyCounter, 44406 mSolverCounterSat, 14 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 310796.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 44424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 258.18ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 44406 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 323335.59ms IncrementalHoareTripleChecker+Time [2021-11-02 18:58:41,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 44424 Unknown, 0 Unchecked, 258.18ms Time], IncrementalHoareTripleChecker [14 Valid, 44406 Invalid, 4 Unknown, 0 Unchecked, 323335.59ms Time] [2021-11-02 18:58:41,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14851 states. [2021-11-02 18:58:41,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14851 to 14851. [2021-11-02 18:58:41,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14851 states, 14809 states have (on average 1.500776554797758) internal successors, (22225), 14810 states have internal predecessors, (22225), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-02 18:58:41,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14851 states to 14851 states and 22301 transitions. [2021-11-02 18:58:41,741 INFO L78 Accepts]: Start accepts. Automaton has 14851 states and 22301 transitions. Word has length 91 [2021-11-02 18:58:41,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 18:58:41,742 INFO L470 AbstractCegarLoop]: Abstraction has 14851 states and 22301 transitions. [2021-11-02 18:58:41,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2021-11-02 18:58:41,743 INFO L276 IsEmpty]: Start isEmpty. Operand 14851 states and 22301 transitions. [2021-11-02 18:58:41,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-02 18:58:41,745 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 18:58:41,745 INFO L514 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] [2021-11-02 18:58:41,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 18:58:41,746 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 18:58:41,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 18:58:41,747 INFO L85 PathProgramCache]: Analyzing trace with hash -568043336, now seen corresponding path program 1 times [2021-11-02 18:58:41,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 18:58:41,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726232834] [2021-11-02 18:58:41,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 18:58:41,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 18:58:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 18:58:42,585 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-02 18:58:42,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 18:58:42,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726232834] [2021-11-02 18:58:42,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726232834] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 18:58:42,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 18:58:42,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 18:58:42,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947878133] [2021-11-02 18:58:42,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 18:58:42,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 18:58:42,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 18:58:42,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 18:58:42,586 INFO L87 Difference]: Start difference. First operand 14851 states and 22301 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2021-11-02 18:58:44,985 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 18:58:51,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 18:58:53,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 18:58:55,818 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15