./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4a4f053d4c8e05b05b5c7887f5d3a3e872b1a59439c17cfd3f803da6611a851a --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 08:30:41,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 08:30:41,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 08:30:41,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 08:30:41,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 08:30:41,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 08:30:41,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 08:30:41,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 08:30:41,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 08:30:41,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 08:30:41,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 08:30:41,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 08:30:41,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 08:30:41,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 08:30:41,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 08:30:41,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 08:30:41,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 08:30:41,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 08:30:41,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 08:30:41,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 08:30:41,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 08:30:41,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 08:30:41,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 08:30:41,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 08:30:41,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 08:30:41,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 08:30:41,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 08:30:41,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 08:30:41,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 08:30:41,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 08:30:41,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 08:30:41,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 08:30:41,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 08:30:41,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 08:30:41,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 08:30:41,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 08:30:41,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 08:30:41,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 08:30:41,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 08:30:41,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 08:30:41,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 08:30:41,324 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 08:30:41,338 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 08:30:41,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 08:30:41,338 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 08:30:41,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 08:30:41,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 08:30:41,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 08:30:41,340 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 08:30:41,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 08:30:41,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 08:30:41,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 08:30:41,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 08:30:41,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 08:30:41,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 08:30:41,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 08:30:41,341 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 08:30:41,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 08:30:41,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 08:30:41,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 08:30:41,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 08:30:41,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 08:30:41,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 08:30:41,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 08:30:41,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 08:30:41,343 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 08:30:41,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 08:30:41,343 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 08:30:41,343 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 08:30:41,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 08:30:41,345 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 08:30:41,345 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a4f053d4c8e05b05b5c7887f5d3a3e872b1a59439c17cfd3f803da6611a851a [2021-11-04 08:30:41,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 08:30:41,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 08:30:41,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 08:30:41,591 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 08:30:41,593 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 08:30:41,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i [2021-11-04 08:30:41,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c143ef439/0ec3d29a522b4672a9dbc0b9e1a21f11/FLAGeae7a783c [2021-11-04 08:30:42,316 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 08:30:42,317 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i [2021-11-04 08:30:42,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c143ef439/0ec3d29a522b4672a9dbc0b9e1a21f11/FLAGeae7a783c [2021-11-04 08:30:42,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c143ef439/0ec3d29a522b4672a9dbc0b9e1a21f11 [2021-11-04 08:30:42,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 08:30:42,692 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 08:30:42,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 08:30:42,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 08:30:42,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 08:30:42,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 08:30:42" (1/1) ... [2021-11-04 08:30:42,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@171063c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:30:42, skipping insertion in model container [2021-11-04 08:30:42,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 08:30:42" (1/1) ... [2021-11-04 08:30:42,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 08:30:42,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 08:30:44,468 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i[368085,368098] [2021-11-04 08:30:44,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 08:30:44,542 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 08:30:45,114 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i[368085,368098] [2021-11-04 08:30:45,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 08:30:45,210 INFO L208 MainTranslator]: Completed translation [2021-11-04 08:30:45,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:30:45 WrapperNode [2021-11-04 08:30:45,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 08:30:45,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 08:30:45,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 08:30:45,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 08:30:45,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:30:45" (1/1) ... [2021-11-04 08:30:45,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:30:45" (1/1) ... [2021-11-04 08:30:46,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 08:30:46,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 08:30:46,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 08:30:46,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 08:30:46,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:30:45" (1/1) ... [2021-11-04 08:30:46,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:30:45" (1/1) ... [2021-11-04 08:30:46,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:30:45" (1/1) ... [2021-11-04 08:30:46,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:30:45" (1/1) ... [2021-11-04 08:30:47,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:30:45" (1/1) ... [2021-11-04 08:30:47,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:30:45" (1/1) ... [2021-11-04 08:30:47,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:30:45" (1/1) ... [2021-11-04 08:30:47,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 08:30:47,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 08:30:47,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 08:30:47,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 08:30:47,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:30:45" (1/1) ... [2021-11-04 08:30:47,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 08:30:47,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 08:30:47,587 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 08:30:47,603 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 08:30:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure ips_done [2021-11-04 08:30:47,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_done [2021-11-04 08:30:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 08:30:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 08:30:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure ips_send_cmd [2021-11-04 08:30:47,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_send_cmd [2021-11-04 08:30:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure ips_intr_copperhead [2021-11-04 08:30:47,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_intr_copperhead [2021-11-04 08:30:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure ips_hainit [2021-11-04 08:30:47,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_hainit [2021-11-04 08:30:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure ips_wait [2021-11-04 08:30:47,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_wait [2021-11-04 08:30:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure ips_readwrite_page5 [2021-11-04 08:30:47,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_readwrite_page5 [2021-11-04 08:30:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure ips_flush_and_reset [2021-11-04 08:30:47,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_flush_and_reset [2021-11-04 08:30:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure ips_send_wait [2021-11-04 08:30:47,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_send_wait [2021-11-04 08:30:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure ips_intr_morpheus [2021-11-04 08:30:47,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_intr_morpheus [2021-11-04 08:30:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 08:30:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure ips_queue_lck [2021-11-04 08:30:47,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_queue_lck [2021-11-04 08:30:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 08:30:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 08:30:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 08:30:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure ips_release [2021-11-04 08:30:47,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_release [2021-11-04 08:30:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-04 08:30:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure ips_isinit_morpheus [2021-11-04 08:30:47,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_isinit_morpheus [2021-11-04 08:30:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure ips_next [2021-11-04 08:30:47,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_next [2021-11-04 08:30:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 08:30:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure ips_clear_adapter [2021-11-04 08:30:47,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_clear_adapter [2021-11-04 08:30:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure ips_flash_bios [2021-11-04 08:30:47,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_flash_bios [2021-11-04 08:30:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure ips_read_subsystem_parameters [2021-11-04 08:30:47,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_read_subsystem_parameters [2021-11-04 08:30:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 08:30:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure ips_write_driver_status [2021-11-04 08:30:47,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_write_driver_status [2021-11-04 08:30:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 08:30:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure ips_init_phase2 [2021-11-04 08:30:47,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_init_phase2 [2021-11-04 08:30:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure ips_read_adapter_status [2021-11-04 08:30:47,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_read_adapter_status [2021-11-04 08:30:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure ips_init_phase1 [2021-11-04 08:30:47,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_init_phase1 [2021-11-04 08:30:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure ipsintr_done [2021-11-04 08:30:47,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ipsintr_done [2021-11-04 08:30:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure ips_insert_device [2021-11-04 08:30:47,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_insert_device [2021-11-04 08:30:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure ips_read_config [2021-11-04 08:30:47,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_read_config [2021-11-04 08:30:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure ips_ffdc_reset [2021-11-04 08:30:47,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_ffdc_reset [2021-11-04 08:30:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 08:30:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure ips_make_passthru [2021-11-04 08:30:47,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_make_passthru [2021-11-04 08:30:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reset_copperhead_memio [2021-11-04 08:30:47,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reset_copperhead_memio [2021-11-04 08:30:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure ips_eh_reset [2021-11-04 08:30:47,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_eh_reset [2021-11-04 08:30:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure __ips_eh_reset [2021-11-04 08:30:47,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __ips_eh_reset [2021-11-04 08:30:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 08:30:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 08:30:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 08:30:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 08:30:47,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 08:30:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-04 08:30:47,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-04 08:30:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure ips_remove_device [2021-11-04 08:30:47,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_remove_device [2021-11-04 08:30:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure ips_queue [2021-11-04 08:30:47,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_queue [2021-11-04 08:30:47,624 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reset_morpheus [2021-11-04 08:30:47,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reset_morpheus [2021-11-04 08:30:47,624 INFO L130 BoogieDeclarations]: Found specification of procedure ips_ffdc_time [2021-11-04 08:30:47,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_ffdc_time [2021-11-04 08:30:47,624 INFO L130 BoogieDeclarations]: Found specification of procedure ips_get_bios_version [2021-11-04 08:30:47,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_get_bios_version [2021-11-04 08:30:47,624 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reset_copperhead [2021-11-04 08:30:47,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reset_copperhead [2021-11-04 08:30:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-04 08:30:47,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-04 08:30:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure ips_flash_copperhead [2021-11-04 08:30:47,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_flash_copperhead [2021-11-04 08:30:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 08:30:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-04 08:30:47,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-04 08:30:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-04 08:30:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 08:30:47,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 08:37:32,689 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 08:37:32,691 INFO L299 CfgBuilder]: Removed 6298 assume(true) statements. [2021-11-04 08:37:32,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 08:37:32 BoogieIcfgContainer [2021-11-04 08:37:32,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 08:37:32,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 08:37:32,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 08:37:32,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 08:37:32,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 08:30:42" (1/3) ... [2021-11-04 08:37:32,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e82901a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 08:37:32, skipping insertion in model container [2021-11-04 08:37:32,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:30:45" (2/3) ... [2021-11-04 08:37:32,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e82901a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 08:37:32, skipping insertion in model container [2021-11-04 08:37:32,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 08:37:32" (3/3) ... [2021-11-04 08:37:32,705 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i [2021-11-04 08:37:32,708 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 08:37:32,708 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-04 08:37:32,801 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 08:37:32,814 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 08:37:32,815 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-04 08:37:32,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 8778 states, 8605 states have (on average 1.47472399767577) internal successors, (12690), 8616 states have internal predecessors, (12690), 128 states have call successors, (128), 39 states have call predecessors, (128), 39 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2021-11-04 08:37:32,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-04 08:37:32,985 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:37:32,986 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] [2021-11-04 08:37:32,987 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ips_queue_lckErr0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 08:37:32,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:37:32,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1609733912, now seen corresponding path program 1 times [2021-11-04 08:37:32,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:37:33,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692784691] [2021-11-04 08:37:33,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:37:33,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:37:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:37:33,864 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 08:37:33,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:37:33,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692784691] [2021-11-04 08:37:33,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692784691] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:37:33,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:37:33,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 08:37:33,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135579538] [2021-11-04 08:37:33,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:37:33,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-04 08:37:33,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:37:33,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-04 08:37:33,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 08:37:33,910 INFO L87 Difference]: Start difference. First operand has 8778 states, 8605 states have (on average 1.47472399767577) internal successors, (12690), 8616 states have internal predecessors, (12690), 128 states have call successors, (128), 39 states have call predecessors, (128), 39 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 08:37:36,057 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:37:39,822 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:37:41,843 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:37:44,086 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:37:49,958 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:37:54,406 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:37:56,650 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:38:02,074 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:38:12,455 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:38:29,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:38:29,402 INFO L93 Difference]: Finished difference Result 17528 states and 25983 transitions. [2021-11-04 08:38:29,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-04 08:38:29,405 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-04 08:38:29,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:38:29,467 INFO L225 Difference]: With dead ends: 17528 [2021-11-04 08:38:29,467 INFO L226 Difference]: Without dead ends: 8466 [2021-11-04 08:38:29,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 08:38:29,546 INFO L933 BasicCegarLoop]: 536 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12290 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51354.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 12295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 50.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12290 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54550.36ms IncrementalHoareTripleChecker+Time [2021-11-04 08:38:29,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 536 Invalid, 12295 Unknown, 0 Unchecked, 50.68ms Time], IncrementalHoareTripleChecker [0 Valid, 12290 Invalid, 5 Unknown, 0 Unchecked, 54550.36ms Time] [2021-11-04 08:38:29,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8466 states. [2021-11-04 08:38:29,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8466 to 8466. [2021-11-04 08:38:29,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8466 states, 8294 states have (on average 1.4475524475524475) internal successors, (12006), 8304 states have internal predecessors, (12006), 128 states have call successors, (128), 39 states have call predecessors, (128), 39 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2021-11-04 08:38:29,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8466 states to 8466 states and 12262 transitions. [2021-11-04 08:38:29,892 INFO L78 Accepts]: Start accepts. Automaton has 8466 states and 12262 transitions. Word has length 64 [2021-11-04 08:38:29,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:38:29,892 INFO L470 AbstractCegarLoop]: Abstraction has 8466 states and 12262 transitions. [2021-11-04 08:38:29,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 08:38:29,893 INFO L276 IsEmpty]: Start isEmpty. Operand 8466 states and 12262 transitions. [2021-11-04 08:38:29,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-04 08:38:29,900 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:38:29,900 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] [2021-11-04 08:38:29,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 08:38:29,900 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ips_queue_lckErr0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 08:38:29,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:38:29,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1609001254, now seen corresponding path program 1 times [2021-11-04 08:38:29,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:38:29,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424462768] [2021-11-04 08:38:29,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:38:29,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:38:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:38:30,412 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 08:38:30,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:38:30,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424462768] [2021-11-04 08:38:30,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424462768] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:38:30,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:38:30,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:38:30,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246015312] [2021-11-04 08:38:30,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:38:30,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:38:30,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:38:30,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:38:30,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:38:30,415 INFO L87 Difference]: Start difference. First operand 8466 states and 12262 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 08:38:32,514 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 08:38:37,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:38:39,881 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:38:42,623 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:38:43,658 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:38:47,976 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:38:54,756 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:38:56,293 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:39:07,510 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:39:09,551 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:39:17,961 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:39:20,368 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:39:22,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:39:24,226 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:39:37,103 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:39:40,585 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:39:43,931 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:39:45,658 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:40:23,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:40:23,898 INFO L93 Difference]: Finished difference Result 16898 states and 24491 transitions. [2021-11-04 08:40:23,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:40:23,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-04 08:40:23,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:40:23,947 INFO L225 Difference]: With dead ends: 16898 [2021-11-04 08:40:23,948 INFO L226 Difference]: Without dead ends: 8468 [2021-11-04 08:40:23,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.89ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:40:23,985 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 0 mSDsluCounter, 12235 mSDsCounter, 0 mSdLazyCounter, 23997 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 105962.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 24006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 152.33ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23997 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 112367.74ms IncrementalHoareTripleChecker+Time [2021-11-04 08:40:23,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 512 Invalid, 24006 Unknown, 0 Unchecked, 152.33ms Time], IncrementalHoareTripleChecker [2 Valid, 23997 Invalid, 7 Unknown, 0 Unchecked, 112367.74ms Time] [2021-11-04 08:40:24,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8468 states. [2021-11-04 08:40:24,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8468 to 8468. [2021-11-04 08:40:24,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8468 states, 8296 states have (on average 1.4474445515911283) internal successors, (12008), 8306 states have internal predecessors, (12008), 128 states have call successors, (128), 39 states have call predecessors, (128), 39 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2021-11-04 08:40:24,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8468 states to 8468 states and 12264 transitions. [2021-11-04 08:40:24,189 INFO L78 Accepts]: Start accepts. Automaton has 8468 states and 12264 transitions. Word has length 64 [2021-11-04 08:40:24,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:40:24,190 INFO L470 AbstractCegarLoop]: Abstraction has 8468 states and 12264 transitions. [2021-11-04 08:40:24,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 08:40:24,190 INFO L276 IsEmpty]: Start isEmpty. Operand 8468 states and 12264 transitions. [2021-11-04 08:40:24,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-04 08:40:24,192 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:40:24,193 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] [2021-11-04 08:40:24,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 08:40:24,193 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ips_queue_lckErr0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 08:40:24,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:40:24,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1818324216, now seen corresponding path program 1 times [2021-11-04 08:40:24,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:40:24,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541171538] [2021-11-04 08:40:24,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:40:24,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:40:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:40:24,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 08:40:24,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:40:24,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541171538] [2021-11-04 08:40:24,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541171538] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:40:24,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:40:24,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:40:24,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317388941] [2021-11-04 08:40:24,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:40:24,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:40:24,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:40:24,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:40:24,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:40:24,637 INFO L87 Difference]: Start difference. First operand 8468 states and 12264 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 08:40:26,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:40:31,463 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:40:33,486 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:40:35,516 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:40:37,110 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:40:38,555 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:40:42,849 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:40:50,963 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:41:00,761 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:41:02,318 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:41:05,973 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:41:11,297 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:41:14,841 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:41:19,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:41:28,599 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:41:31,305 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:42:08,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:42:08,887 INFO L93 Difference]: Finished difference Result 16893 states and 24483 transitions. [2021-11-04 08:42:08,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:42:08,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-04 08:42:08,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:42:08,923 INFO L225 Difference]: With dead ends: 16893 [2021-11-04 08:42:08,923 INFO L226 Difference]: Without dead ends: 8469 [2021-11-04 08:42:08,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.26ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:42:08,952 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 0 mSDsluCounter, 12235 mSDsCounter, 0 mSdLazyCounter, 23998 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96712.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 24005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 118.45ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23998 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103376.33ms IncrementalHoareTripleChecker+Time [2021-11-04 08:42:08,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 512 Invalid, 24005 Unknown, 0 Unchecked, 118.45ms Time], IncrementalHoareTripleChecker [0 Valid, 23998 Invalid, 7 Unknown, 0 Unchecked, 103376.33ms Time] [2021-11-04 08:42:08,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8469 states. [2021-11-04 08:42:09,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8469 to 8469. [2021-11-04 08:42:09,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8469 states, 8297 states have (on average 1.4473906231167892) internal successors, (12009), 8307 states have internal predecessors, (12009), 128 states have call successors, (128), 39 states have call predecessors, (128), 39 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2021-11-04 08:42:09,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8469 states to 8469 states and 12265 transitions. [2021-11-04 08:42:09,107 INFO L78 Accepts]: Start accepts. Automaton has 8469 states and 12265 transitions. Word has length 66 [2021-11-04 08:42:09,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:42:09,107 INFO L470 AbstractCegarLoop]: Abstraction has 8469 states and 12265 transitions. [2021-11-04 08:42:09,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 08:42:09,108 INFO L276 IsEmpty]: Start isEmpty. Operand 8469 states and 12265 transitions. [2021-11-04 08:42:09,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-04 08:42:09,110 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:42:09,110 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] [2021-11-04 08:42:09,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 08:42:09,111 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ips_queue_lckErr0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 08:42:09,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:42:09,111 INFO L85 PathProgramCache]: Analyzing trace with hash -579385213, now seen corresponding path program 1 times [2021-11-04 08:42:09,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:42:09,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012351179] [2021-11-04 08:42:09,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:42:09,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:42:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:42:09,494 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-04 08:42:09,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:42:09,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012351179] [2021-11-04 08:42:09,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012351179] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:42:09,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:42:09,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:42:09,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173446619] [2021-11-04 08:42:09,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:42:09,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:42:09,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:42:09,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:42:09,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:42:09,497 INFO L87 Difference]: Start difference. First operand 8469 states and 12265 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 08:42:11,593 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:42:15,064 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:42:17,403 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:42:19,393 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:42:21,421 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:42:29,254 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:42:37,103 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:42:39,153 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:42:43,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:42:52,408 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:43:05,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:43:09,867 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:43:19,746 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:43:24,673 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:44:15,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:44:15,161 INFO L93 Difference]: Finished difference Result 24401 states and 35482 transitions. [2021-11-04 08:44:15,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:44:15,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-04 08:44:15,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:44:15,246 INFO L225 Difference]: With dead ends: 24401 [2021-11-04 08:44:15,246 INFO L226 Difference]: Without dead ends: 15979 [2021-11-04 08:44:15,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.49ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:44:15,290 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 10957 mSDsluCounter, 12239 mSDsCounter, 0 mSdLazyCounter, 24676 mSolverCounterSat, 2 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 113094.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10991 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 24689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 152.67ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24676 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 124088.31ms IncrementalHoareTripleChecker+Time [2021-11-04 08:44:15,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10991 Valid, 640 Invalid, 24689 Unknown, 0 Unchecked, 152.67ms Time], IncrementalHoareTripleChecker [2 Valid, 24676 Invalid, 11 Unknown, 0 Unchecked, 124088.31ms Time] [2021-11-04 08:44:15,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15979 states. [2021-11-04 08:44:15,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15979 to 15948. [2021-11-04 08:44:15,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15948 states, 15618 states have (on average 1.453066974004354) internal successors, (22694), 15634 states have internal predecessors, (22694), 249 states have call successors, (249), 76 states have call predecessors, (249), 76 states have return successors, (280), 249 states have call predecessors, (280), 249 states have call successors, (280) [2021-11-04 08:44:15,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15948 states to 15948 states and 23223 transitions. [2021-11-04 08:44:15,635 INFO L78 Accepts]: Start accepts. Automaton has 15948 states and 23223 transitions. Word has length 67 [2021-11-04 08:44:15,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:44:15,636 INFO L470 AbstractCegarLoop]: Abstraction has 15948 states and 23223 transitions. [2021-11-04 08:44:15,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 08:44:15,637 INFO L276 IsEmpty]: Start isEmpty. Operand 15948 states and 23223 transitions. [2021-11-04 08:44:15,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-04 08:44:15,646 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:44:15,646 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] [2021-11-04 08:44:15,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 08:44:15,647 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ips_queue_lckErr0ASSERT_VIOLATIONERROR_FUNCTION === [ips_queue_lckErr0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 08:44:15,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:44:15,647 INFO L85 PathProgramCache]: Analyzing trace with hash -199025635, now seen corresponding path program 1 times [2021-11-04 08:44:15,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:44:15,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156390842] [2021-11-04 08:44:15,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:44:15,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:44:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:44:15,970 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-04 08:44:15,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:44:15,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156390842] [2021-11-04 08:44:15,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156390842] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:44:15,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:44:15,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:44:15,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494263894] [2021-11-04 08:44:15,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:44:15,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:44:15,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:44:15,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:44:15,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:44:15,973 INFO L87 Difference]: Start difference. First operand 15948 states and 23223 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 08:44:18,085 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:44:21,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:44:25,928 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:44:30,043 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:44:43,687 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:44:45,765 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:44:47,277 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:44:49,918 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:44:54,552 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:45:01,556 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15