./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.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 b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 09:23:24,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 09:23:24,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 09:23:24,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 09:23:24,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 09:23:24,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 09:23:24,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 09:23:24,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 09:23:24,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 09:23:24,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 09:23:24,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 09:23:24,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 09:23:24,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 09:23:24,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 09:23:24,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 09:23:24,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 09:23:24,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 09:23:24,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 09:23:24,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 09:23:24,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 09:23:24,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 09:23:24,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 09:23:24,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 09:23:24,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 09:23:24,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 09:23:24,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 09:23:24,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 09:23:24,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 09:23:24,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 09:23:24,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 09:23:24,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 09:23:24,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 09:23:24,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 09:23:24,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 09:23:24,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 09:23:24,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 09:23:24,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 09:23:24,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 09:23:24,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 09:23:24,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 09:23:24,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 09:23:24,190 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 09:23:24,216 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 09:23:24,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 09:23:24,217 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 09:23:24,218 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 09:23:24,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 09:23:24,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 09:23:24,219 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 09:23:24,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 09:23:24,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 09:23:24,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 09:23:24,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 09:23:24,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 09:23:24,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 09:23:24,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 09:23:24,221 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 09:23:24,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 09:23:24,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 09:23:24,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 09:23:24,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 09:23:24,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 09:23:24,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 09:23:24,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 09:23:24,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 09:23:24,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 09:23:24,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 09:23:24,224 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 09:23:24,224 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 09:23:24,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 09:23:24,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 09:23:24,225 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 [2021-11-04 09:23:24,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 09:23:24,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 09:23:24,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 09:23:24,464 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 09:23:24,465 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 09:23:24,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-04 09:23:24,534 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a9147cfb/1c116a02db3b4035ae752064126904bf/FLAG56435fee2 [2021-11-04 09:23:25,323 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 09:23:25,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-04 09:23:25,391 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a9147cfb/1c116a02db3b4035ae752064126904bf/FLAG56435fee2 [2021-11-04 09:23:25,571 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a9147cfb/1c116a02db3b4035ae752064126904bf [2021-11-04 09:23:25,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 09:23:25,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 09:23:25,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 09:23:25,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 09:23:25,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 09:23:25,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 09:23:25" (1/1) ... [2021-11-04 09:23:25,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d54ff4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:23:25, skipping insertion in model container [2021-11-04 09:23:25,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 09:23:25" (1/1) ... [2021-11-04 09:23:25,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 09:23:25,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 09:23:27,698 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2021-11-04 09:23:27,700 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2021-11-04 09:23:27,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 09:23:27,781 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 09:23:28,053 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2021-11-04 09:23:28,054 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2021-11-04 09:23:28,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 09:23:28,233 INFO L208 MainTranslator]: Completed translation [2021-11-04 09:23:28,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:23:28 WrapperNode [2021-11-04 09:23:28,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 09:23:28,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 09:23:28,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 09:23:28,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 09:23:28,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:23:28" (1/1) ... [2021-11-04 09:23:28,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:23:28" (1/1) ... [2021-11-04 09:23:29,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 09:23:29,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 09:23:29,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 09:23:29,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 09:23:29,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:23:28" (1/1) ... [2021-11-04 09:23:29,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:23:28" (1/1) ... [2021-11-04 09:23:29,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:23:28" (1/1) ... [2021-11-04 09:23:29,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:23:28" (1/1) ... [2021-11-04 09:23:29,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:23:28" (1/1) ... [2021-11-04 09:23:30,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:23:28" (1/1) ... [2021-11-04 09:23:30,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:23:28" (1/1) ... [2021-11-04 09:23:30,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 09:23:30,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 09:23:30,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 09:23:30,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 09:23:30,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:23:28" (1/1) ... [2021-11-04 09:23:30,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 09:23:30,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 09:23:30,561 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) [2021-11-04 09:23:30,603 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 [2021-11-04 09:23:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 09:23:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 09:23:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 09:23:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 09:23:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 09:23:30,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 09:23:30,624 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 09:23:30,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 09:23:30,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 09:23:30,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 09:23:30,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 09:23:30,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 09:23:30,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 09:23:30,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 09:23:30,625 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_req_queue_run [2021-11-04 09:23:30,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_req_queue_run [2021-11-04 09:23:30,625 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_ctx_complete [2021-11-04 09:23:30,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_ctx_complete [2021-11-04 09:23:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 09:23:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 09:23:38,912 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 09:23:38,912 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 09:23:38,913 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-04 09:23:38,913 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 09:23:38,949 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 09:23:38,950 INFO L299 CfgBuilder]: Removed 6676 assume(true) statements. [2021-11-04 09:23:38,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 09:23:38 BoogieIcfgContainer [2021-11-04 09:23:38,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 09:23:38,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 09:23:38,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 09:23:38,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 09:23:38,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 09:23:25" (1/3) ... [2021-11-04 09:23:38,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af4bff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 09:23:38, skipping insertion in model container [2021-11-04 09:23:38,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:23:28" (2/3) ... [2021-11-04 09:23:38,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af4bff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 09:23:38, skipping insertion in model container [2021-11-04 09:23:38,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 09:23:38" (3/3) ... [2021-11-04 09:23:38,968 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-04 09:23:38,972 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 09:23:38,972 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 79 error locations. [2021-11-04 09:23:39,037 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 09:23:39,044 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 [2021-11-04 09:23:39,045 INFO L340 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2021-11-04 09:23:39,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 7550 states, 7438 states have (on average 1.4598010217800483) internal successors, (10858), 7542 states have internal predecessors, (10858), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-04 09:23:39,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-04 09:23:39,163 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:23:39,163 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] [2021-11-04 09:23:39,164 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-04 09:23:39,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:23:39,167 INFO L85 PathProgramCache]: Analyzing trace with hash -756030138, now seen corresponding path program 1 times [2021-11-04 09:23:39,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:23:39,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898170472] [2021-11-04 09:23:39,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:23:39,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:23:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:23:39,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:23:39,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:23:39,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898170472] [2021-11-04 09:23:39,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898170472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:23:39,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:23:39,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:23:39,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489766856] [2021-11-04 09:23:39,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:23:39,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:23:39,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:23:39,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:23:39,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:23:39,916 INFO L87 Difference]: Start difference. First operand has 7550 states, 7438 states have (on average 1.4598010217800483) internal successors, (10858), 7542 states have internal predecessors, (10858), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-04 09:23:42,074 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:24:30,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:24:30,666 INFO L93 Difference]: Finished difference Result 19205 states and 27817 transitions. [2021-11-04 09:24:30,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:24:30,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2021-11-04 09:24:30,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:24:30,752 INFO L225 Difference]: With dead ends: 19205 [2021-11-04 09:24:30,753 INFO L226 Difference]: Without dead ends: 11109 [2021-11-04 09:24:30,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.92ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:24:30,794 INFO L933 BasicCegarLoop]: 463 mSDtfsCounter, 6049 mSDsluCounter, 10320 mSDsCounter, 0 mSdLazyCounter, 19882 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45628.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6049 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 19890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 112.21ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19882 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49496.14ms IncrementalHoareTripleChecker+Time [2021-11-04 09:24:30,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6049 Valid, 906 Invalid, 19890 Unknown, 0 Unchecked, 112.21ms Time], IncrementalHoareTripleChecker [7 Valid, 19882 Invalid, 1 Unknown, 0 Unchecked, 49496.14ms Time] [2021-11-04 09:24:30,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11109 states. [2021-11-04 09:24:31,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11109 to 11013. [2021-11-04 09:24:31,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11013 states, 10879 states have (on average 1.3788031988234213) internal successors, (15000), 10998 states have internal predecessors, (15000), 51 states have call successors, (51), 4 states have call predecessors, (51), 4 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2021-11-04 09:24:31,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11013 states to 11013 states and 15102 transitions. [2021-11-04 09:24:31,278 INFO L78 Accepts]: Start accepts. Automaton has 11013 states and 15102 transitions. Word has length 71 [2021-11-04 09:24:31,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:24:31,281 INFO L470 AbstractCegarLoop]: Abstraction has 11013 states and 15102 transitions. [2021-11-04 09:24:31,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-04 09:24:31,283 INFO L276 IsEmpty]: Start isEmpty. Operand 11013 states and 15102 transitions. [2021-11-04 09:24:31,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-04 09:24:31,287 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:24:31,287 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] [2021-11-04 09:24:31,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 09:24:31,288 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-04 09:24:31,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:24:31,290 INFO L85 PathProgramCache]: Analyzing trace with hash 325300629, now seen corresponding path program 1 times [2021-11-04 09:24:31,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:24:31,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392112333] [2021-11-04 09:24:31,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:24:31,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:24:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:24:31,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:24:31,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:24:31,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392112333] [2021-11-04 09:24:31,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392112333] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:24:31,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:24:31,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:24:31,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868939373] [2021-11-04 09:24:31,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:24:31,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:24:31,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:24:31,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:24:31,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:24:31,640 INFO L87 Difference]: Start difference. First operand 11013 states and 15102 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-11-04 09:24:33,694 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:25:27,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:25:27,536 INFO L93 Difference]: Finished difference Result 26035 states and 35693 transitions. [2021-11-04 09:25:27,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:25:27,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 74 [2021-11-04 09:25:27,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:25:27,608 INFO L225 Difference]: With dead ends: 26035 [2021-11-04 09:25:27,609 INFO L226 Difference]: Without dead ends: 15146 [2021-11-04 09:25:27,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.20ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:25:27,640 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 4720 mSDsluCounter, 9530 mSDsCounter, 0 mSdLazyCounter, 19207 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50401.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4720 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 19225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 91.41ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 19207 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54782.43ms IncrementalHoareTripleChecker+Time [2021-11-04 09:25:27,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4720 Valid, 140 Invalid, 19225 Unknown, 0 Unchecked, 91.41ms Time], IncrementalHoareTripleChecker [17 Valid, 19207 Invalid, 1 Unknown, 0 Unchecked, 54782.43ms Time] [2021-11-04 09:25:27,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15146 states. [2021-11-04 09:25:27,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15146 to 15058. [2021-11-04 09:25:27,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15058 states, 14903 states have (on average 1.3769039790646178) internal successors, (20520), 15035 states have internal predecessors, (20520), 68 states have call successors, (68), 8 states have call predecessors, (68), 8 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2021-11-04 09:25:28,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15058 states to 15058 states and 20656 transitions. [2021-11-04 09:25:28,006 INFO L78 Accepts]: Start accepts. Automaton has 15058 states and 20656 transitions. Word has length 74 [2021-11-04 09:25:28,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:25:28,012 INFO L470 AbstractCegarLoop]: Abstraction has 15058 states and 20656 transitions. [2021-11-04 09:25:28,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-11-04 09:25:28,013 INFO L276 IsEmpty]: Start isEmpty. Operand 15058 states and 20656 transitions. [2021-11-04 09:25:28,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-04 09:25:28,015 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:25:28,016 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:25:28,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 09:25:28,016 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-04 09:25:28,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:25:28,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1282968837, now seen corresponding path program 1 times [2021-11-04 09:25:28,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:25:28,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802316289] [2021-11-04 09:25:28,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:25:28,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:25:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:25:28,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:25:28,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:25:28,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802316289] [2021-11-04 09:25:28,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802316289] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:25:28,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:25:28,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:25:28,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966923749] [2021-11-04 09:25:28,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:25:28,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:25:28,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:25:28,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:25:28,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:25:28,242 INFO L87 Difference]: Start difference. First operand 15058 states and 20656 transitions. 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) [2021-11-04 09:25:30,296 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:26:32,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:26:32,797 INFO L93 Difference]: Finished difference Result 34675 states and 47533 transitions. [2021-11-04 09:26:32,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:26:32,798 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 [2021-11-04 09:26:32,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:26:32,868 INFO L225 Difference]: With dead ends: 34675 [2021-11-04 09:26:32,868 INFO L226 Difference]: Without dead ends: 19741 [2021-11-04 09:26:32,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.48ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:26:32,917 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 5544 mSDsluCounter, 9523 mSDsCounter, 0 mSdLazyCounter, 19010 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57466.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5544 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 19017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 96.41ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19010 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63335.17ms IncrementalHoareTripleChecker+Time [2021-11-04 09:26:32,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5544 Valid, 144 Invalid, 19017 Unknown, 0 Unchecked, 96.41ms Time], IncrementalHoareTripleChecker [6 Valid, 19010 Invalid, 1 Unknown, 0 Unchecked, 63335.17ms Time] [2021-11-04 09:26:32,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19741 states. [2021-11-04 09:26:33,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19741 to 19651. [2021-11-04 09:26:33,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19651 states, 19469 states have (on average 1.375365966408136) internal successors, (26777), 19617 states have internal predecessors, (26777), 91 states have call successors, (91), 12 states have call predecessors, (91), 12 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2021-11-04 09:26:33,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19651 states to 19651 states and 26959 transitions. [2021-11-04 09:26:33,438 INFO L78 Accepts]: Start accepts. Automaton has 19651 states and 26959 transitions. Word has length 85 [2021-11-04 09:26:33,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:26:33,439 INFO L470 AbstractCegarLoop]: Abstraction has 19651 states and 26959 transitions. [2021-11-04 09:26:33,439 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) [2021-11-04 09:26:33,439 INFO L276 IsEmpty]: Start isEmpty. Operand 19651 states and 26959 transitions. [2021-11-04 09:26:33,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-04 09:26:33,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:26:33,442 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:26:33,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 09:26:33,442 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-04 09:26:33,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:26:33,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1672858622, now seen corresponding path program 1 times [2021-11-04 09:26:33,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:26:33,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898485940] [2021-11-04 09:26:33,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:26:33,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:26:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:26:33,717 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:26:33,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:26:33,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898485940] [2021-11-04 09:26:33,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898485940] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:26:33,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:26:33,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:26:33,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456932187] [2021-11-04 09:26:33,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:26:33,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:26:33,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:26:33,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:26:33,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:26:33,719 INFO L87 Difference]: Start difference. First operand 19651 states and 26959 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2021-11-04 09:26:35,843 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:28:10,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:28:10,904 INFO L93 Difference]: Finished difference Result 50124 states and 68792 transitions. [2021-11-04 09:28:10,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:28:10,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 89 [2021-11-04 09:28:10,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:28:11,004 INFO L225 Difference]: With dead ends: 50124 [2021-11-04 09:28:11,005 INFO L226 Difference]: Without dead ends: 30597 [2021-11-04 09:28:11,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.94ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:28:11,074 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 9411 mSDsluCounter, 9559 mSDsCounter, 0 mSdLazyCounter, 23792 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85283.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9411 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 23796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 158.22ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23792 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95264.96ms IncrementalHoareTripleChecker+Time [2021-11-04 09:28:11,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9411 Valid, 173 Invalid, 23796 Unknown, 0 Unchecked, 158.22ms Time], IncrementalHoareTripleChecker [3 Valid, 23792 Invalid, 1 Unknown, 0 Unchecked, 95264.96ms Time] [2021-11-04 09:28:11,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30597 states. [2021-11-04 09:28:11,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30597 to 30423. [2021-11-04 09:28:11,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30423 states, 30187 states have (on average 1.377712260244476) internal successors, (41589), 30374 states have internal predecessors, (41589), 139 states have call successors, (139), 18 states have call predecessors, (139), 18 states have return successors, (139), 139 states have call predecessors, (139), 139 states have call successors, (139) [2021-11-04 09:28:11,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30423 states to 30423 states and 41867 transitions. [2021-11-04 09:28:11,940 INFO L78 Accepts]: Start accepts. Automaton has 30423 states and 41867 transitions. Word has length 89 [2021-11-04 09:28:11,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:28:11,941 INFO L470 AbstractCegarLoop]: Abstraction has 30423 states and 41867 transitions. [2021-11-04 09:28:11,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2021-11-04 09:28:11,941 INFO L276 IsEmpty]: Start isEmpty. Operand 30423 states and 41867 transitions. [2021-11-04 09:28:11,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-04 09:28:11,948 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:28:11,949 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:28:11,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 09:28:11,949 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-04 09:28:11,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:28:11,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1607912092, now seen corresponding path program 1 times [2021-11-04 09:28:11,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:28:11,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873458936] [2021-11-04 09:28:11,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:28:11,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:28:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:28:12,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:28:12,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:28:12,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873458936] [2021-11-04 09:28:12,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873458936] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:28:12,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:28:12,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:28:12,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192498117] [2021-11-04 09:28:12,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:28:12,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:28:12,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:28:12,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:28:12,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:28:12,217 INFO L87 Difference]: Start difference. First operand 30423 states and 41867 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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) [2021-11-04 09:28:14,277 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:29:28,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:29:28,377 INFO L93 Difference]: Finished difference Result 86297 states and 119048 transitions. [2021-11-04 09:29:28,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:29:28,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 106 [2021-11-04 09:29:28,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:29:28,526 INFO L225 Difference]: With dead ends: 86297 [2021-11-04 09:29:28,526 INFO L226 Difference]: Without dead ends: 55998 [2021-11-04 09:29:28,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.26ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:29:28,586 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 8881 mSDsluCounter, 9523 mSDsCounter, 0 mSdLazyCounter, 19014 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66007.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8881 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 19022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 102.67ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19014 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74218.22ms IncrementalHoareTripleChecker+Time [2021-11-04 09:29:28,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8881 Valid, 154 Invalid, 19022 Unknown, 0 Unchecked, 102.67ms Time], IncrementalHoareTripleChecker [7 Valid, 19014 Invalid, 1 Unknown, 0 Unchecked, 74218.22ms Time] [2021-11-04 09:29:28,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55998 states. [2021-11-04 09:29:29,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55998 to 55798. [2021-11-04 09:29:29,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55798 states, 55431 states have (on average 1.3824574696469485) internal successors, (76631), 55717 states have internal predecessors, (76631), 260 states have call successors, (260), 28 states have call predecessors, (260), 28 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) [2021-11-04 09:29:29,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55798 states to 55798 states and 77151 transitions. [2021-11-04 09:29:29,637 INFO L78 Accepts]: Start accepts. Automaton has 55798 states and 77151 transitions. Word has length 106 [2021-11-04 09:29:29,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:29:29,639 INFO L470 AbstractCegarLoop]: Abstraction has 55798 states and 77151 transitions. [2021-11-04 09:29:29,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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) [2021-11-04 09:29:29,639 INFO L276 IsEmpty]: Start isEmpty. Operand 55798 states and 77151 transitions. [2021-11-04 09:29:29,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-04 09:29:29,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:29:29,645 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:29:29,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 09:29:29,645 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-04 09:29:29,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:29:29,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1160644210, now seen corresponding path program 1 times [2021-11-04 09:29:29,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:29:29,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748401698] [2021-11-04 09:29:29,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:29:29,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:29:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:29:29,901 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:29:29,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:29:29,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748401698] [2021-11-04 09:29:29,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748401698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:29:29,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:29:29,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:29:29,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150200009] [2021-11-04 09:29:29,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:29:29,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:29:29,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:29:29,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:29:29,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:29:29,904 INFO L87 Difference]: Start difference. First operand 55798 states and 77151 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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) [2021-11-04 09:29:32,010 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 [] [2021-11-04 09:31:00,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:31:00,330 INFO L93 Difference]: Finished difference Result 166454 states and 230401 transitions. [2021-11-04 09:31:00,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:31:00,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 117 [2021-11-04 09:31:00,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:31:00,628 INFO L225 Difference]: With dead ends: 166454 [2021-11-04 09:31:00,629 INFO L226 Difference]: Without dead ends: 110834 [2021-11-04 09:31:00,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.28ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:31:00,870 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 9372 mSDsluCounter, 9543 mSDsCounter, 0 mSdLazyCounter, 23539 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77472.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9372 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 23545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 117.77ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23539 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87728.12ms IncrementalHoareTripleChecker+Time [2021-11-04 09:31:00,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9372 Valid, 168 Invalid, 23545 Unknown, 0 Unchecked, 117.77ms Time], IncrementalHoareTripleChecker [5 Valid, 23539 Invalid, 1 Unknown, 0 Unchecked, 87728.12ms Time] [2021-11-04 09:31:00,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110834 states. [2021-11-04 09:31:02,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110834 to 110676. [2021-11-04 09:31:02,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110676 states, 110021 states have (on average 1.3838539915107115) internal successors, (152253), 110515 states have internal predecessors, (152253), 520 states have call successors, (520), 56 states have call predecessors, (520), 56 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520) [2021-11-04 09:31:03,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110676 states to 110676 states and 153293 transitions. [2021-11-04 09:31:03,407 INFO L78 Accepts]: Start accepts. Automaton has 110676 states and 153293 transitions. Word has length 117 [2021-11-04 09:31:03,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:31:03,408 INFO L470 AbstractCegarLoop]: Abstraction has 110676 states and 153293 transitions. [2021-11-04 09:31:03,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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) [2021-11-04 09:31:03,408 INFO L276 IsEmpty]: Start isEmpty. Operand 110676 states and 153293 transitions. [2021-11-04 09:31:03,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-04 09:31:03,412 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:31:03,412 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:31:03,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 09:31:03,415 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-04 09:31:03,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:31:03,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1820175732, now seen corresponding path program 1 times [2021-11-04 09:31:03,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:31:03,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095866811] [2021-11-04 09:31:03,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:31:03,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:31:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:31:03,886 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:31:03,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:31:03,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095866811] [2021-11-04 09:31:03,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095866811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:31:03,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:31:03,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:31:03,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115849214] [2021-11-04 09:31:03,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:31:03,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:31:03,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:31:03,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:31:03,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:31:03,889 INFO L87 Difference]: Start difference. First operand 110676 states and 153293 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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) [2021-11-04 09:31:05,943 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:32:48,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:32:48,901 INFO L93 Difference]: Finished difference Result 276226 states and 382701 transitions. [2021-11-04 09:32:48,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:32:48,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 117 [2021-11-04 09:32:48,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:32:49,468 INFO L225 Difference]: With dead ends: 276226 [2021-11-04 09:32:49,468 INFO L226 Difference]: Without dead ends: 165481 [2021-11-04 09:32:49,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.13ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:32:49,608 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 9368 mSDsluCounter, 9547 mSDsCounter, 0 mSdLazyCounter, 28332 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88128.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9368 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 28338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 122.82ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28332 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 101417.89ms IncrementalHoareTripleChecker+Time [2021-11-04 09:32:49,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9368 Valid, 186 Invalid, 28338 Unknown, 0 Unchecked, 122.82ms Time], IncrementalHoareTripleChecker [5 Valid, 28332 Invalid, 1 Unknown, 0 Unchecked, 101417.89ms Time] [2021-11-04 09:32:49,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165481 states. [2021-11-04 09:32:52,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165481 to 165323. [2021-11-04 09:32:52,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165323 states, 164380 states have (on average 1.3846088331913857) internal successors, (227602), 165082 states have internal predecessors, (227602), 780 states have call successors, (780), 84 states have call predecessors, (780), 84 states have return successors, (780), 780 states have call predecessors, (780), 780 states have call successors, (780) [2021-11-04 09:32:53,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165323 states to 165323 states and 229162 transitions. [2021-11-04 09:32:53,668 INFO L78 Accepts]: Start accepts. Automaton has 165323 states and 229162 transitions. Word has length 117 [2021-11-04 09:32:53,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:32:53,668 INFO L470 AbstractCegarLoop]: Abstraction has 165323 states and 229162 transitions. [2021-11-04 09:32:53,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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) [2021-11-04 09:32:53,669 INFO L276 IsEmpty]: Start isEmpty. Operand 165323 states and 229162 transitions. [2021-11-04 09:32:53,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-04 09:32:53,698 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:32:53,699 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:32:53,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 09:32:53,699 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-04 09:32:53,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:32:53,700 INFO L85 PathProgramCache]: Analyzing trace with hash 530310338, now seen corresponding path program 1 times [2021-11-04 09:32:53,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:32:53,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610478370] [2021-11-04 09:32:53,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:32:53,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:32:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:32:54,328 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-04 09:32:54,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:32:54,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610478370] [2021-11-04 09:32:54,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610478370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:32:54,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:32:54,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:32:54,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759866528] [2021-11-04 09:32:54,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:32:54,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:32:54,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:32:54,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:32:54,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:32:54,330 INFO L87 Difference]: Start difference. First operand 165323 states and 229162 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2021-11-04 09:32:57,171 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:34:22,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:34:22,641 INFO L93 Difference]: Finished difference Result 373597 states and 517691 transitions. [2021-11-04 09:34:22,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:34:22,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 124 [2021-11-04 09:34:22,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:34:23,237 INFO L225 Difference]: With dead ends: 373597 [2021-11-04 09:34:23,237 INFO L226 Difference]: Without dead ends: 208452 [2021-11-04 09:34:23,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.56ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:34:23,453 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 5905 mSDsluCounter, 8343 mSDsCounter, 0 mSdLazyCounter, 22427 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72030.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5905 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 22439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 101.52ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 22427 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83763.87ms IncrementalHoareTripleChecker+Time [2021-11-04 09:34:23,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5905 Valid, 143 Invalid, 22439 Unknown, 0 Unchecked, 101.52ms Time], IncrementalHoareTripleChecker [11 Valid, 22427 Invalid, 1 Unknown, 0 Unchecked, 83763.87ms Time] [2021-11-04 09:34:23,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208452 states. [2021-11-04 09:34:27,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208452 to 208307. [2021-11-04 09:34:27,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208307 states, 207124 states have (on average 1.3828286437110138) internal successors, (286417), 207970 states have internal predecessors, (286417), 972 states have call successors, (972), 132 states have call predecessors, (972), 132 states have return successors, (972), 972 states have call predecessors, (972), 972 states have call successors, (972) [2021-11-04 09:34:28,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208307 states to 208307 states and 288361 transitions. [2021-11-04 09:34:28,213 INFO L78 Accepts]: Start accepts. Automaton has 208307 states and 288361 transitions. Word has length 124 [2021-11-04 09:34:28,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:34:28,214 INFO L470 AbstractCegarLoop]: Abstraction has 208307 states and 288361 transitions. [2021-11-04 09:34:28,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2021-11-04 09:34:28,214 INFO L276 IsEmpty]: Start isEmpty. Operand 208307 states and 288361 transitions. [2021-11-04 09:34:28,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-04 09:34:28,218 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:34:28,235 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:34:28,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-04 09:34:28,236 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-04 09:34:28,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:34:28,236 INFO L85 PathProgramCache]: Analyzing trace with hash -370190605, now seen corresponding path program 1 times [2021-11-04 09:34:28,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:34:28,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102435503] [2021-11-04 09:34:28,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:34:28,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:34:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:34:28,452 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-04 09:34:28,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:34:28,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102435503] [2021-11-04 09:34:28,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102435503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:34:28,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:34:28,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:34:28,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109216260] [2021-11-04 09:34:28,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:34:28,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:34:28,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:34:28,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:34:28,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:34:28,455 INFO L87 Difference]: Start difference. First operand 208307 states and 288361 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2021-11-04 09:34:30,510 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:36:27,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:36:27,042 INFO L93 Difference]: Finished difference Result 485604 states and 672257 transitions. [2021-11-04 09:36:27,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:36:27,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 133 [2021-11-04 09:36:27,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:36:27,943 INFO L225 Difference]: With dead ends: 485604 [2021-11-04 09:36:27,943 INFO L226 Difference]: Without dead ends: 277300 [2021-11-04 09:36:28,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.01ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:36:28,188 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 9366 mSDsluCounter, 9547 mSDsCounter, 0 mSdLazyCounter, 28326 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 95536.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9366 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 28327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 130.11ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28326 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 112601.15ms IncrementalHoareTripleChecker+Time [2021-11-04 09:36:28,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9366 Valid, 186 Invalid, 28327 Unknown, 0 Unchecked, 130.11ms Time], IncrementalHoareTripleChecker [0 Valid, 28326 Invalid, 1 Unknown, 0 Unchecked, 112601.15ms Time] [2021-11-04 09:36:28,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277300 states. [2021-11-04 09:36:32,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277300 to 208307. [2021-11-04 09:36:32,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208307 states, 207124 states have (on average 1.38282381568529) internal successors, (286416), 207970 states have internal predecessors, (286416), 972 states have call successors, (972), 132 states have call predecessors, (972), 132 states have return successors, (972), 972 states have call predecessors, (972), 972 states have call successors, (972) [2021-11-04 09:36:33,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208307 states to 208307 states and 288360 transitions. [2021-11-04 09:36:33,528 INFO L78 Accepts]: Start accepts. Automaton has 208307 states and 288360 transitions. Word has length 133 [2021-11-04 09:36:33,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:36:33,528 INFO L470 AbstractCegarLoop]: Abstraction has 208307 states and 288360 transitions. [2021-11-04 09:36:33,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2021-11-04 09:36:33,529 INFO L276 IsEmpty]: Start isEmpty. Operand 208307 states and 288360 transitions. [2021-11-04 09:36:33,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-04 09:36:33,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:36:33,532 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:36:33,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-04 09:36:33,533 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-04 09:36:33,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:36:33,533 INFO L85 PathProgramCache]: Analyzing trace with hash 289340917, now seen corresponding path program 1 times [2021-11-04 09:36:33,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:36:33,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077200614] [2021-11-04 09:36:33,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:36:33,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:36:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:36:33,728 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-04 09:36:33,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:36:33,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077200614] [2021-11-04 09:36:33,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077200614] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:36:33,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:36:33,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:36:33,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625544569] [2021-11-04 09:36:33,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:36:33,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:36:33,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:36:33,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:36:33,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:36:33,731 INFO L87 Difference]: Start difference. First operand 208307 states and 288360 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2021-11-04 09:36:35,784 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15