./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-32_7a-drivers--hid--usbhid--usbhid.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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.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 ce994d1a73c37780cf760e0a26dafcaa4c1158119509e83a0962528ef5890c5e --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-02 20:59:12,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 20:59:12,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 20:59:12,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 20:59:12,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 20:59:12,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 20:59:12,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 20:59:12,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 20:59:12,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 20:59:12,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 20:59:12,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 20:59:12,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 20:59:12,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 20:59:12,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 20:59:12,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 20:59:12,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 20:59:12,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 20:59:12,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 20:59:12,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 20:59:12,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 20:59:12,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 20:59:12,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 20:59:12,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 20:59:12,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 20:59:12,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 20:59:12,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 20:59:12,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 20:59:12,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 20:59:12,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 20:59:12,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 20:59:12,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 20:59:12,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 20:59:12,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 20:59:12,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 20:59:12,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 20:59:12,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 20:59:12,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 20:59:12,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 20:59:12,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 20:59:12,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 20:59:12,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 20:59:12,623 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 20:59:12,645 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 20:59:12,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 20:59:12,646 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 20:59:12,646 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 20:59:12,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 20:59:12,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 20:59:12,647 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 20:59:12,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 20:59:12,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 20:59:12,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 20:59:12,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 20:59:12,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 20:59:12,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 20:59:12,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 20:59:12,648 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 20:59:12,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 20:59:12,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 20:59:12,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 20:59:12,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 20:59:12,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 20:59:12,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 20:59:12,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 20:59:12,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 20:59:12,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 20:59:12,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 20:59:12,650 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 20:59:12,650 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 20:59:12,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 20:59:12,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 20:59:12,651 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce994d1a73c37780cf760e0a26dafcaa4c1158119509e83a0962528ef5890c5e [2021-11-02 20:59:12,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 20:59:12,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 20:59:12,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 20:59:12,864 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 20:59:12,865 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 20:59:12,866 INFO L432 ainManager$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-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i [2021-11-02 20:59:12,926 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef7caca2b/90980f4bae7741889d981f198c87ccd5/FLAG4fe27d2da [2021-11-02 20:59:13,487 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 20:59:13,487 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i [2021-11-02 20:59:13,529 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef7caca2b/90980f4bae7741889d981f198c87ccd5/FLAG4fe27d2da [2021-11-02 20:59:13,657 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef7caca2b/90980f4bae7741889d981f198c87ccd5 [2021-11-02 20:59:13,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 20:59:13,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 20:59:13,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 20:59:13,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 20:59:13,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 20:59:13,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:59:13" (1/1) ... [2021-11-02 20:59:13,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@459abc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:13, skipping insertion in model container [2021-11-02 20:59:13,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:59:13" (1/1) ... [2021-11-02 20:59:13,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 20:59:13,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 20:59:15,769 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-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i[374492,374505] [2021-11-02 20:59:16,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 20:59:16,110 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 20:59:16,422 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-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i[374492,374505] [2021-11-02 20:59:16,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 20:59:16,551 INFO L208 MainTranslator]: Completed translation [2021-11-02 20:59:16,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:16 WrapperNode [2021-11-02 20:59:16,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 20:59:16,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 20:59:16,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 20:59:16,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 20:59:16,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:16" (1/1) ... [2021-11-02 20:59:16,703 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:16" (1/1) ... [2021-11-02 20:59:18,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 20:59:18,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 20:59:18,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 20:59:18,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 20:59:18,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:16" (1/1) ... [2021-11-02 20:59:18,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:16" (1/1) ... [2021-11-02 20:59:18,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:16" (1/1) ... [2021-11-02 20:59:18,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:16" (1/1) ... [2021-11-02 20:59:19,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:16" (1/1) ... [2021-11-02 20:59:19,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:16" (1/1) ... [2021-11-02 20:59:20,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:16" (1/1) ... [2021-11-02 20:59:20,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 20:59:20,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 20:59:20,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 20:59:20,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 20:59:20,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:16" (1/1) ... [2021-11-02 20:59:20,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 20:59:20,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 20:59:20,328 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 20:59:20,367 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 20:59:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-02 20:59:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_request_effect_upload [2021-11-02 20:59:20,385 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_request_effect_upload [2021-11-02 20:59:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure hid_suspend [2021-11-02 20:59:20,385 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_suspend [2021-11-02 20:59:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-02 20:59:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure hid_resume_common [2021-11-02 20:59:20,386 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_resume_common [2021-11-02 20:59:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 20:59:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 20:59:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure hid_pidff_init [2021-11-02 20:59:20,386 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_pidff_init [2021-11-02 20:59:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 20:59:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 20:59:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-11-02 20:59:20,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-11-02 20:59:20,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 20:59:20,387 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_check_autocenter [2021-11-02 20:59:20,387 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_check_autocenter [2021-11-02 20:59:20,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 20:59:20,387 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-02 20:59:20,387 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-02 20:59:20,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-02 20:59:20,387 INFO L130 BoogieDeclarations]: Found specification of procedure hid_hw_wait [2021-11-02 20:59:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_hw_wait [2021-11-02 20:59:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 20:59:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 20:59:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 20:59:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 20:59:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 20:59:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 20:59:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 20:59:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure hid_reset_resume [2021-11-02 20:59:20,389 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_reset_resume [2021-11-02 20:59:20,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 20:59:20,389 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_reset [2021-11-02 20:59:20,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_reset [2021-11-02 20:59:20,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 20:59:20,389 INFO L130 BoogieDeclarations]: Found specification of procedure hid_resume [2021-11-02 20:59:20,389 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_resume [2021-11-02 21:00:24,247 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 21:00:24,252 INFO L299 CfgBuilder]: Removed 10214 assume(true) statements. [2021-11-02 21:00:24,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:00:24 BoogieIcfgContainer [2021-11-02 21:00:24,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 21:00:24,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 21:00:24,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 21:00:24,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 21:00:24,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:59:13" (1/3) ... [2021-11-02 21:00:24,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314afd76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:00:24, skipping insertion in model container [2021-11-02 21:00:24,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:16" (2/3) ... [2021-11-02 21:00:24,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314afd76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:00:24, skipping insertion in model container [2021-11-02 21:00:24,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:00:24" (3/3) ... [2021-11-02 21:00:24,267 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i [2021-11-02 21:00:24,270 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 21:00:24,270 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2021-11-02 21:00:24,325 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 21:00:24,331 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 21:00:24,331 INFO L340 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2021-11-02 21:00:24,434 INFO L276 IsEmpty]: Start isEmpty. Operand has 10314 states, 10239 states have (on average 1.4098056450825276) internal successors, (14435), 10275 states have internal predecessors, (14435), 28 states have call successors, (28), 11 states have call predecessors, (28), 11 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-02 21:00:24,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-02 21:00:24,450 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:00:24,451 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] [2021-11-02 21:00:24,452 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-02 21:00:24,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:00:24,455 INFO L85 PathProgramCache]: Analyzing trace with hash 599881239, now seen corresponding path program 1 times [2021-11-02 21:00:24,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:00:24,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287342029] [2021-11-02 21:00:24,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:00:24,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:00:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:00:25,025 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 21:00:25,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:00:25,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287342029] [2021-11-02 21:00:25,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287342029] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:00:25,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:00:25,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 21:00:25,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85783550] [2021-11-02 21:00:25,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 21:00:25,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:00:25,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 21:00:25,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 21:00:25,063 INFO L87 Difference]: Start difference. First operand has 10314 states, 10239 states have (on average 1.4098056450825276) internal successors, (14435), 10275 states have internal predecessors, (14435), 28 states have call successors, (28), 11 states have call predecessors, (28), 11 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 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 21:00:27,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:01:48,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:01:48,908 INFO L93 Difference]: Finished difference Result 20624 states and 29005 transitions. [2021-11-02 21:01:48,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 21:01:48,925 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 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 68 [2021-11-02 21:01:48,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:01:48,985 INFO L225 Difference]: With dead ends: 20624 [2021-11-02 21:01:48,986 INFO L226 Difference]: Without dead ends: 10301 [2021-11-02 21:01:49,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 21:01:49,017 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14229 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76724.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 14230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 75.12ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14229 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82423.49ms IncrementalHoareTripleChecker+Time [2021-11-02 21:01:49,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 14230 Unknown, 0 Unchecked, 75.12ms Time], IncrementalHoareTripleChecker [0 Valid, 14229 Invalid, 1 Unknown, 0 Unchecked, 82423.49ms Time] [2021-11-02 21:01:49,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10301 states. [2021-11-02 21:01:49,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10301 to 10301. [2021-11-02 21:01:49,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10301 states, 10227 states have (on average 1.3901437371663243) internal successors, (14217), 10262 states have internal predecessors, (14217), 28 states have call successors, (28), 11 states have call predecessors, (28), 11 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-02 21:01:49,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10301 states to 10301 states and 14273 transitions. [2021-11-02 21:01:49,326 INFO L78 Accepts]: Start accepts. Automaton has 10301 states and 14273 transitions. Word has length 68 [2021-11-02 21:01:49,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:01:49,326 INFO L470 AbstractCegarLoop]: Abstraction has 10301 states and 14273 transitions. [2021-11-02 21:01:49,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 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 21:01:49,327 INFO L276 IsEmpty]: Start isEmpty. Operand 10301 states and 14273 transitions. [2021-11-02 21:01:49,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-02 21:01:49,332 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:01:49,332 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] [2021-11-02 21:01:49,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 21:01:49,333 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-02 21:01:49,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:01:49,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1714873313, now seen corresponding path program 1 times [2021-11-02 21:01:49,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:01:49,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697858486] [2021-11-02 21:01:49,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:01:49,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:01:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:01:49,760 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 21:01:49,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:01:49,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697858486] [2021-11-02 21:01:49,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697858486] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:01:49,760 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:01:49,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 21:01:49,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464758419] [2021-11-02 21:01:49,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:01:49,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:01:49,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:01:49,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:01:49,762 INFO L87 Difference]: Start difference. First operand 10301 states and 14273 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 21:01:51,870 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:04:30,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:04:30,349 INFO L93 Difference]: Finished difference Result 20594 states and 28549 transitions. [2021-11-02 21:04:30,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 21:04:30,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2021-11-02 21:04:30,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:04:30,389 INFO L225 Difference]: With dead ends: 20594 [2021-11-02 21:04:30,389 INFO L226 Difference]: Without dead ends: 10313 [2021-11-02 21:04:30,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:04:30,408 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 14182 mSDsCounter, 0 mSdLazyCounter, 28420 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 149180.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 28443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 204.62ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 28420 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 159028.99ms IncrementalHoareTripleChecker+Time [2021-11-02 21:04:30,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 28443 Unknown, 0 Unchecked, 204.62ms Time], IncrementalHoareTripleChecker [22 Valid, 28420 Invalid, 1 Unknown, 0 Unchecked, 159028.99ms Time] [2021-11-02 21:04:30,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10313 states. [2021-11-02 21:04:30,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10313 to 10313. [2021-11-02 21:04:30,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10313 states, 10239 states have (on average 1.3896864928215646) internal successors, (14229), 10274 states have internal predecessors, (14229), 28 states have call successors, (28), 11 states have call predecessors, (28), 11 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-02 21:04:30,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10313 states to 10313 states and 14285 transitions. [2021-11-02 21:04:30,677 INFO L78 Accepts]: Start accepts. Automaton has 10313 states and 14285 transitions. Word has length 68 [2021-11-02 21:04:30,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:04:30,678 INFO L470 AbstractCegarLoop]: Abstraction has 10313 states and 14285 transitions. [2021-11-02 21:04:30,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 21:04:30,678 INFO L276 IsEmpty]: Start isEmpty. Operand 10313 states and 14285 transitions. [2021-11-02 21:04:30,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-02 21:04:30,679 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:04:30,680 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] [2021-11-02 21:04:30,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 21:04:30,680 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-02 21:04:30,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:04:30,681 INFO L85 PathProgramCache]: Analyzing trace with hash -538389657, now seen corresponding path program 1 times [2021-11-02 21:04:30,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:04:30,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539788440] [2021-11-02 21:04:30,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:04:30,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:04:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:04:31,096 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-02 21:04:31,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:04:31,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539788440] [2021-11-02 21:04:31,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539788440] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:04:31,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:04:31,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 21:04:31,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587767966] [2021-11-02 21:04:31,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:04:31,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:04:31,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:04:31,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:04:31,097 INFO L87 Difference]: Start difference. First operand 10313 states and 14285 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 21:04:33,185 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:06:29,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:06:36,885 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:07:17,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:07:17,083 INFO L93 Difference]: Finished difference Result 20596 states and 28538 transitions. [2021-11-02 21:07:17,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 21:07:17,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2021-11-02 21:07:17,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:07:17,132 INFO L225 Difference]: With dead ends: 20596 [2021-11-02 21:07:17,132 INFO L226 Difference]: Without dead ends: 10315 [2021-11-02 21:07:17,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.18ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:07:17,155 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 14182 mSDsCounter, 0 mSdLazyCounter, 28430 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 153235.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 28433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 169.64ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28430 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 164766.70ms IncrementalHoareTripleChecker+Time [2021-11-02 21:07:17,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 28433 Unknown, 0 Unchecked, 169.64ms Time], IncrementalHoareTripleChecker [2 Valid, 28430 Invalid, 1 Unknown, 0 Unchecked, 164766.70ms Time] [2021-11-02 21:07:17,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10315 states. [2021-11-02 21:07:17,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10315 to 10315. [2021-11-02 21:07:17,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10315 states, 10241 states have (on average 1.3896103896103895) internal successors, (14231), 10276 states have internal predecessors, (14231), 28 states have call successors, (28), 11 states have call predecessors, (28), 11 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-02 21:07:17,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10315 states to 10315 states and 14287 transitions. [2021-11-02 21:07:17,366 INFO L78 Accepts]: Start accepts. Automaton has 10315 states and 14287 transitions. Word has length 75 [2021-11-02 21:07:17,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:07:17,369 INFO L470 AbstractCegarLoop]: Abstraction has 10315 states and 14287 transitions. [2021-11-02 21:07:17,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 21:07:17,369 INFO L276 IsEmpty]: Start isEmpty. Operand 10315 states and 14287 transitions. [2021-11-02 21:07:17,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-02 21:07:17,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:07:17,372 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] [2021-11-02 21:07:17,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 21:07:17,373 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-02 21:07:17,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:07:17,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1150575579, now seen corresponding path program 1 times [2021-11-02 21:07:17,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:07:17,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721122189] [2021-11-02 21:07:17,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:07:17,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:07:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:07:17,794 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-02 21:07:17,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:07:17,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721122189] [2021-11-02 21:07:17,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721122189] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:07:17,795 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:07:17,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 21:07:17,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363488326] [2021-11-02 21:07:17,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:07:17,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:07:17,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:07:17,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:07:17,796 INFO L87 Difference]: Start difference. First operand 10315 states and 14287 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 21:07:19,899 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:09:49,640 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:10:45,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:10:45,589 INFO L93 Difference]: Finished difference Result 20585 states and 28527 transitions. [2021-11-02 21:10:45,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 21:10:45,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2021-11-02 21:10:45,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:10:45,613 INFO L225 Difference]: With dead ends: 20585 [2021-11-02 21:10:45,614 INFO L226 Difference]: Without dead ends: 10322 [2021-11-02 21:10:45,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.40ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:10:45,628 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 14182 mSDsCounter, 0 mSdLazyCounter, 28425 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 192873.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 28438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 173.15ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 28425 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 206413.39ms IncrementalHoareTripleChecker+Time [2021-11-02 21:10:45,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 28438 Unknown, 0 Unchecked, 173.15ms Time], IncrementalHoareTripleChecker [12 Valid, 28425 Invalid, 1 Unknown, 0 Unchecked, 206413.39ms Time] [2021-11-02 21:10:45,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10322 states. [2021-11-02 21:10:45,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10322 to 10322. [2021-11-02 21:10:45,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10322 states, 10248 states have (on average 1.389344262295082) internal successors, (14238), 10283 states have internal predecessors, (14238), 28 states have call successors, (28), 11 states have call predecessors, (28), 11 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-02 21:10:45,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10322 states to 10322 states and 14294 transitions. [2021-11-02 21:10:45,799 INFO L78 Accepts]: Start accepts. Automaton has 10322 states and 14294 transitions. Word has length 77 [2021-11-02 21:10:45,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:10:45,799 INFO L470 AbstractCegarLoop]: Abstraction has 10322 states and 14294 transitions. [2021-11-02 21:10:45,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 21:10:45,799 INFO L276 IsEmpty]: Start isEmpty. Operand 10322 states and 14294 transitions. [2021-11-02 21:10:45,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-02 21:10:45,801 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:10:45,801 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] [2021-11-02 21:10:45,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 21:10:45,801 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-02 21:10:45,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:10:45,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1853474397, now seen corresponding path program 1 times [2021-11-02 21:10:45,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:10:45,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519165589] [2021-11-02 21:10:45,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:10:45,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:10:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:10:46,203 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-02 21:10:46,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:10:46,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519165589] [2021-11-02 21:10:46,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519165589] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:10:46,204 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:10:46,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 21:10:46,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928896268] [2021-11-02 21:10:46,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:10:46,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:10:46,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:10:46,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:10:46,205 INFO L87 Difference]: Start difference. First operand 10322 states and 14294 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 21:10:48,297 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:12:57,822 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15