./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.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 1e656e08f859c02a2fcbde115f6fa3d541385535606558c0d455741014c679db --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 15:18:26,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 15:18:26,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 15:18:26,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 15:18:26,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 15:18:26,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 15:18:26,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 15:18:26,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 15:18:26,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 15:18:26,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 15:18:26,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 15:18:26,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 15:18:26,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 15:18:26,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 15:18:26,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 15:18:26,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 15:18:26,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 15:18:26,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 15:18:26,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 15:18:26,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 15:18:26,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 15:18:26,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 15:18:26,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 15:18:26,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 15:18:26,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 15:18:26,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 15:18:26,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 15:18:26,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 15:18:26,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 15:18:26,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 15:18:26,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 15:18:26,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 15:18:26,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 15:18:26,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 15:18:26,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 15:18:26,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 15:18:26,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 15:18:26,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 15:18:26,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 15:18:26,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 15:18:26,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 15:18:26,302 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 15:18:26,315 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 15:18:26,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 15:18:26,315 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 15:18:26,315 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 15:18:26,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 15:18:26,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 15:18:26,316 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 15:18:26,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 15:18:26,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 15:18:26,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 15:18:26,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 15:18:26,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 15:18:26,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 15:18:26,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 15:18:26,317 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 15:18:26,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 15:18:26,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 15:18:26,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 15:18:26,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 15:18:26,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:18:26,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 15:18:26,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 15:18:26,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 15:18:26,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 15:18:26,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 15:18:26,319 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 15:18:26,319 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 15:18:26,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 15:18:26,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 15:18:26,319 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e656e08f859c02a2fcbde115f6fa3d541385535606558c0d455741014c679db [2021-11-07 15:18:26,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 15:18:26,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 15:18:26,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 15:18:26,523 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 15:18:26,524 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 15:18:26,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i [2021-11-07 15:18:26,587 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94f9ce158/141a176759324541bc8e058c374a6586/FLAGcbee1f8c8 [2021-11-07 15:18:27,345 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 15:18:27,346 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i [2021-11-07 15:18:27,394 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94f9ce158/141a176759324541bc8e058c374a6586/FLAGcbee1f8c8 [2021-11-07 15:18:27,601 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94f9ce158/141a176759324541bc8e058c374a6586 [2021-11-07 15:18:27,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 15:18:27,605 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 15:18:27,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 15:18:27,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 15:18:27,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 15:18:27,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:18:27" (1/1) ... [2021-11-07 15:18:27,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ddb164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:18:27, skipping insertion in model container [2021-11-07 15:18:27,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:18:27" (1/1) ... [2021-11-07 15:18:27,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 15:18:27,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 15:18:31,646 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i[602654,602667] [2021-11-07 15:18:31,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:18:31,945 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 15:18:32,376 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i[602654,602667] [2021-11-07 15:18:32,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:18:32,840 INFO L208 MainTranslator]: Completed translation [2021-11-07 15:18:32,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:18:32 WrapperNode [2021-11-07 15:18:32,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 15:18:32,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 15:18:32,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 15:18:32,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 15:18:32,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:18:32" (1/1) ... [2021-11-07 15:18:33,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:18:32" (1/1) ... [2021-11-07 15:18:35,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 15:18:35,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 15:18:35,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 15:18:35,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 15:18:35,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:18:32" (1/1) ... [2021-11-07 15:18:35,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:18:32" (1/1) ... [2021-11-07 15:18:35,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:18:32" (1/1) ... [2021-11-07 15:18:35,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:18:32" (1/1) ... [2021-11-07 15:18:37,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:18:32" (1/1) ... [2021-11-07 15:18:37,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:18:32" (1/1) ... [2021-11-07 15:18:37,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:18:32" (1/1) ... [2021-11-07 15:18:38,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 15:18:38,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 15:18:38,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 15:18:38,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 15:18:38,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:18:32" (1/1) ... [2021-11-07 15:18:38,241 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:18:38,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 15:18:38,259 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) [2021-11-07 15:18:38,266 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 [2021-11-07 15:18:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 15:18:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 15:18:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 15:18:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 15:18:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 15:18:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 15:18:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 15:18:38,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 15:18:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 15:18:38,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 15:18:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 15:18:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 15:18:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_scan_stm [2021-11-07 15:18:38,290 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_scan_stm [2021-11-07 15:18:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 15:18:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 15:18:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 15:18:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 15:18:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_plt_init [2021-11-07 15:18:38,291 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_plt_init [2021-11-07 15:18:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 15:23:48,969 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 15:23:48,969 INFO L299 CfgBuilder]: Removed 19649 assume(true) statements. [2021-11-07 15:23:48,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:23:48 BoogieIcfgContainer [2021-11-07 15:23:48,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 15:23:48,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 15:23:48,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 15:23:48,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 15:23:48,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:18:27" (1/3) ... [2021-11-07 15:23:48,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7d17d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:23:48, skipping insertion in model container [2021-11-07 15:23:48,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:18:32" (2/3) ... [2021-11-07 15:23:48,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7d17d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:23:48, skipping insertion in model container [2021-11-07 15:23:48,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:23:48" (3/3) ... [2021-11-07 15:23:48,996 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i [2021-11-07 15:23:49,000 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 15:23:49,001 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-07 15:23:49,075 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 15:23:49,081 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 [2021-11-07 15:23:49,082 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-07 15:23:49,326 INFO L276 IsEmpty]: Start isEmpty. Operand has 17765 states, 17738 states have (on average 1.400665238471079) internal successors, (24845), 17748 states have internal predecessors, (24845), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2021-11-07 15:23:49,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-07 15:23:49,384 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:23:49,385 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:23:49,386 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting wl12xx_plt_initErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 15:23:49,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:23:49,395 INFO L85 PathProgramCache]: Analyzing trace with hash -554712371, now seen corresponding path program 1 times [2021-11-07 15:23:49,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:23:49,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111144897] [2021-11-07 15:23:49,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:23:49,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:23:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:23:50,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-07 15:23:50,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:23:50,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-07 15:23:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:23:50,797 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 15:23:50,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:23:50,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111144897] [2021-11-07 15:23:50,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111144897] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:23:50,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:23:50,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:23:50,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565822647] [2021-11-07 15:23:50,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:23:50,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:23:50,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:23:50,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:23:50,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:23:50,866 INFO L87 Difference]: Start difference. First operand has 17765 states, 17738 states have (on average 1.400665238471079) internal successors, (24845), 17748 states have internal predecessors, (24845), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 15:23:53,227 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:23:55,603 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:24:03,021 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:24:05,286 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:24:07,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:24:16,266 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:24:25,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:24:25,171 INFO L93 Difference]: Finished difference Result 35573 states and 49845 transitions. [2021-11-07 15:24:25,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:24:25,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 186 [2021-11-07 15:24:25,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:24:25,262 INFO L225 Difference]: With dead ends: 35573 [2021-11-07 15:24:25,262 INFO L226 Difference]: Without dead ends: 17726 [2021-11-07 15:24:25,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.12ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:24:25,312 INFO L933 BasicCegarLoop]: 23915 mSDtfsCounter, 100 mSDsluCounter, 18995 mSDsCounter, 0 mSdLazyCounter, 4917 mSolverCounterSat, 21 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31194.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 42910 SdHoareTripleChecker+Invalid, 4943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 130.68ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 4917 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33463.11ms IncrementalHoareTripleChecker+Time [2021-11-07 15:24:25,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 42910 Invalid, 4943 Unknown, 0 Unchecked, 130.68ms Time], IncrementalHoareTripleChecker [21 Valid, 4917 Invalid, 5 Unknown, 0 Unchecked, 33463.11ms Time] [2021-11-07 15:24:25,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17726 states. [2021-11-07 15:24:25,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17726 to 17679. [2021-11-07 15:24:25,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17679 states, 17653 states have (on average 1.345097150625956) internal successors, (23745), 17662 states have internal predecessors, (23745), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2021-11-07 15:24:25,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17679 states to 17679 states and 23779 transitions. [2021-11-07 15:24:25,916 INFO L78 Accepts]: Start accepts. Automaton has 17679 states and 23779 transitions. Word has length 186 [2021-11-07 15:24:25,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:24:25,917 INFO L470 AbstractCegarLoop]: Abstraction has 17679 states and 23779 transitions. [2021-11-07 15:24:25,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 15:24:25,918 INFO L276 IsEmpty]: Start isEmpty. Operand 17679 states and 23779 transitions. [2021-11-07 15:24:25,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-07 15:24:25,945 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:24:25,946 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:24:25,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 15:24:25,947 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting wl12xx_plt_initErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 15:24:25,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:24:25,948 INFO L85 PathProgramCache]: Analyzing trace with hash 654632037, now seen corresponding path program 1 times [2021-11-07 15:24:25,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:24:25,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900195818] [2021-11-07 15:24:25,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:24:25,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:24:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:24:26,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-07 15:24:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:24:26,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-07 15:24:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:24:27,002 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 15:24:27,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:24:27,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900195818] [2021-11-07 15:24:27,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900195818] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:24:27,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:24:27,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 15:24:27,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189567095] [2021-11-07 15:24:27,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:24:27,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 15:24:27,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:24:27,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 15:24:27,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 15:24:27,007 INFO L87 Difference]: Start difference. First operand 17679 states and 23779 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 15:24:29,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:24:32,985 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:24:36,927 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:24:41,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:24:43,485 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:24:45,681 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:24:47,709 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:24:50,144 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:24:57,752 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:25:05,279 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:25:12,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:25:12,363 INFO L93 Difference]: Finished difference Result 41654 states and 56055 transitions. [2021-11-07 15:25:12,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 15:25:12,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 188 [2021-11-07 15:25:12,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:25:12,458 INFO L225 Difference]: With dead ends: 41654 [2021-11-07 15:25:12,459 INFO L226 Difference]: Without dead ends: 24089 [2021-11-07 15:25:12,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 82.27ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:25:12,590 INFO L933 BasicCegarLoop]: 27508 mSDtfsCounter, 8710 mSDsluCounter, 44563 mSDsCounter, 0 mSdLazyCounter, 6537 mSolverCounterSat, 55 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41058.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8715 SdHoareTripleChecker+Valid, 72071 SdHoareTripleChecker+Invalid, 6600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 157.54ms SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 6537 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44328.08ms IncrementalHoareTripleChecker+Time [2021-11-07 15:25:12,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8715 Valid, 72071 Invalid, 6600 Unknown, 0 Unchecked, 157.54ms Time], IncrementalHoareTripleChecker [55 Valid, 6537 Invalid, 8 Unknown, 0 Unchecked, 44328.08ms Time] [2021-11-07 15:25:12,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24089 states. [2021-11-07 15:25:13,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24089 to 24024. [2021-11-07 15:25:13,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24024 states, 23981 states have (on average 1.344814644927234) internal successors, (32250), 23994 states have internal predecessors, (32250), 27 states have call successors, (27), 6 states have call predecessors, (27), 10 states have return successors, (49), 25 states have call predecessors, (49), 27 states have call successors, (49) [2021-11-07 15:25:13,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24024 states to 24024 states and 32326 transitions. [2021-11-07 15:25:13,090 INFO L78 Accepts]: Start accepts. Automaton has 24024 states and 32326 transitions. Word has length 188 [2021-11-07 15:25:13,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:25:13,091 INFO L470 AbstractCegarLoop]: Abstraction has 24024 states and 32326 transitions. [2021-11-07 15:25:13,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 15:25:13,092 INFO L276 IsEmpty]: Start isEmpty. Operand 24024 states and 32326 transitions. [2021-11-07 15:25:13,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-07 15:25:13,100 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:25:13,100 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:25:13,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 15:25:13,100 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 15:25:13,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:25:13,101 INFO L85 PathProgramCache]: Analyzing trace with hash 879763896, now seen corresponding path program 1 times [2021-11-07 15:25:13,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:25:13,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632980655] [2021-11-07 15:25:13,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:25:13,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:25:13,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:25:14,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:25:14,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:25:14,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632980655] [2021-11-07 15:25:14,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632980655] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:25:14,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:25:14,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:25:14,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257205709] [2021-11-07 15:25:14,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:25:14,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:25:14,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:25:14,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:25:14,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:25:14,219 INFO L87 Difference]: Start difference. First operand 24024 states and 32326 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2021-11-07 15:25:16,486 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:25:17,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:25:17,433 INFO L93 Difference]: Finished difference Result 70408 states and 95277 transitions. [2021-11-07 15:25:17,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:25:17,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 187 [2021-11-07 15:25:17,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:25:17,571 INFO L225 Difference]: With dead ends: 70408 [2021-11-07 15:25:17,572 INFO L226 Difference]: Without dead ends: 46498 [2021-11-07 15:25:17,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.74ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:25:17,643 INFO L933 BasicCegarLoop]: 23793 mSDtfsCounter, 22861 mSDsluCounter, 23758 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2270.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22861 SdHoareTripleChecker+Valid, 47551 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.52ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2416.77ms IncrementalHoareTripleChecker+Time [2021-11-07 15:25:17,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22861 Valid, 47551 Invalid, 15 Unknown, 0 Unchecked, 36.52ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2416.77ms Time] [2021-11-07 15:25:17,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46498 states. [2021-11-07 15:25:18,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46498 to 46494. [2021-11-07 15:25:18,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46494 states, 46414 states have (on average 1.3556685482828457) internal successors, (62922), 46435 states have internal predecessors, (62922), 54 states have call successors, (54), 12 states have call predecessors, (54), 20 states have return successors, (98), 50 states have call predecessors, (98), 54 states have call successors, (98) [2021-11-07 15:25:18,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46494 states to 46494 states and 63074 transitions. [2021-11-07 15:25:18,629 INFO L78 Accepts]: Start accepts. Automaton has 46494 states and 63074 transitions. Word has length 187 [2021-11-07 15:25:18,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:25:18,630 INFO L470 AbstractCegarLoop]: Abstraction has 46494 states and 63074 transitions. [2021-11-07 15:25:18,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2021-11-07 15:25:18,631 INFO L276 IsEmpty]: Start isEmpty. Operand 46494 states and 63074 transitions. [2021-11-07 15:25:18,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-07 15:25:18,636 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:25:18,636 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:25:18,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 15:25:18,637 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 15:25:18,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:25:18,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1698691325, now seen corresponding path program 1 times [2021-11-07 15:25:18,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:25:18,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029291365] [2021-11-07 15:25:18,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:25:18,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:25:19,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:25:19,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:25:19,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:25:19,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029291365] [2021-11-07 15:25:19,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029291365] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:25:19,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:25:19,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:25:19,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478277225] [2021-11-07 15:25:19,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:25:19,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:25:19,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:25:19,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:25:19,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:25:19,799 INFO L87 Difference]: Start difference. First operand 46494 states and 63074 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 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) [2021-11-07 15:25:20,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:25:20,325 INFO L93 Difference]: Finished difference Result 46494 states and 63074 transitions. [2021-11-07 15:25:20,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:25:20,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 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 195 [2021-11-07 15:25:20,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:25:20,439 INFO L225 Difference]: With dead ends: 46494 [2021-11-07 15:25:20,440 INFO L226 Difference]: Without dead ends: 46492 [2021-11-07 15:25:20,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.75ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:25:20,469 INFO L933 BasicCegarLoop]: 23776 mSDtfsCounter, 23584 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23584 SdHoareTripleChecker+Valid, 23776 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.29ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.48ms IncrementalHoareTripleChecker+Time [2021-11-07 15:25:20,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23584 Valid, 23776 Invalid, 1 Unknown, 0 Unchecked, 22.29ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.48ms Time] [2021-11-07 15:25:20,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46492 states. [2021-11-07 15:25:21,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46492 to 46492. [2021-11-07 15:25:21,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46492 states, 46413 states have (on average 1.3556546657186563) internal successors, (62920), 46433 states have internal predecessors, (62920), 54 states have call successors, (54), 12 states have call predecessors, (54), 20 states have return successors, (98), 50 states have call predecessors, (98), 54 states have call successors, (98) [2021-11-07 15:25:21,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46492 states to 46492 states and 63072 transitions. [2021-11-07 15:25:21,446 INFO L78 Accepts]: Start accepts. Automaton has 46492 states and 63072 transitions. Word has length 195 [2021-11-07 15:25:21,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:25:21,447 INFO L470 AbstractCegarLoop]: Abstraction has 46492 states and 63072 transitions. [2021-11-07 15:25:21,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 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) [2021-11-07 15:25:21,447 INFO L276 IsEmpty]: Start isEmpty. Operand 46492 states and 63072 transitions. [2021-11-07 15:25:21,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-07 15:25:21,453 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:25:21,453 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:25:21,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 15:25:21,453 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 15:25:21,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:25:21,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1119766122, now seen corresponding path program 1 times [2021-11-07 15:25:21,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:25:21,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519976828] [2021-11-07 15:25:21,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:25:21,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:25:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:25:22,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:25:22,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:25:22,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519976828] [2021-11-07 15:25:22,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519976828] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:25:22,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:25:22,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:25:22,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60927066] [2021-11-07 15:25:22,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:25:22,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:25:22,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:25:22,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:25:22,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:25:22,568 INFO L87 Difference]: Start difference. First operand 46492 states and 63072 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 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) [2021-11-07 15:25:23,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:25:23,103 INFO L93 Difference]: Finished difference Result 46492 states and 63072 transitions. [2021-11-07 15:25:23,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:25:23,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 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 196 [2021-11-07 15:25:23,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:25:23,226 INFO L225 Difference]: With dead ends: 46492 [2021-11-07 15:25:23,226 INFO L226 Difference]: Without dead ends: 46490 [2021-11-07 15:25:23,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.91ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:25:23,254 INFO L933 BasicCegarLoop]: 23774 mSDtfsCounter, 23581 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23581 SdHoareTripleChecker+Valid, 23774 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.56ms IncrementalHoareTripleChecker+Time [2021-11-07 15:25:23,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23581 Valid, 23774 Invalid, 1 Unknown, 0 Unchecked, 21.68ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.56ms Time] [2021-11-07 15:25:23,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46490 states. [2021-11-07 15:25:24,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46490 to 46490. [2021-11-07 15:25:24,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46490 states, 46412 states have (on average 1.3556407825562355) internal successors, (62918), 46431 states have internal predecessors, (62918), 54 states have call successors, (54), 12 states have call predecessors, (54), 20 states have return successors, (98), 50 states have call predecessors, (98), 54 states have call successors, (98) [2021-11-07 15:25:24,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46490 states to 46490 states and 63070 transitions. [2021-11-07 15:25:24,317 INFO L78 Accepts]: Start accepts. Automaton has 46490 states and 63070 transitions. Word has length 196 [2021-11-07 15:25:24,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:25:24,318 INFO L470 AbstractCegarLoop]: Abstraction has 46490 states and 63070 transitions. [2021-11-07 15:25:24,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 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) [2021-11-07 15:25:24,318 INFO L276 IsEmpty]: Start isEmpty. Operand 46490 states and 63070 transitions. [2021-11-07 15:25:24,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-07 15:25:24,324 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:25:24,324 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:25:24,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 15:25:24,324 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 15:25:24,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:25:24,325 INFO L85 PathProgramCache]: Analyzing trace with hash -352954003, now seen corresponding path program 1 times [2021-11-07 15:25:24,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:25:24,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484941993] [2021-11-07 15:25:24,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:25:24,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:25:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:25:25,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:25:25,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:25:25,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484941993] [2021-11-07 15:25:25,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484941993] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:25:25,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:25:25,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:25:25,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584497978] [2021-11-07 15:25:25,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:25:25,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:25:25,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:25:25,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:25:25,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:25:25,415 INFO L87 Difference]: Start difference. First operand 46490 states and 63070 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 2 states have internal predecessors, (197), 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) [2021-11-07 15:25:26,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:25:26,085 INFO L93 Difference]: Finished difference Result 46490 states and 63070 transitions. [2021-11-07 15:25:26,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:25:26,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 2 states have internal predecessors, (197), 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 197 [2021-11-07 15:25:26,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:25:26,178 INFO L225 Difference]: With dead ends: 46490 [2021-11-07 15:25:26,178 INFO L226 Difference]: Without dead ends: 46488 [2021-11-07 15:25:26,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.42ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:25:26,197 INFO L933 BasicCegarLoop]: 23772 mSDtfsCounter, 23578 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23578 SdHoareTripleChecker+Valid, 23772 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.31ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.58ms IncrementalHoareTripleChecker+Time [2021-11-07 15:25:26,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23578 Valid, 23772 Invalid, 1 Unknown, 0 Unchecked, 21.31ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.58ms Time] [2021-11-07 15:25:26,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46488 states. [2021-11-07 15:25:26,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46488 to 46488. [2021-11-07 15:25:27,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46488 states, 46411 states have (on average 1.3556268987955442) internal successors, (62916), 46429 states have internal predecessors, (62916), 54 states have call successors, (54), 12 states have call predecessors, (54), 20 states have return successors, (98), 50 states have call predecessors, (98), 54 states have call successors, (98) [2021-11-07 15:25:27,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46488 states to 46488 states and 63068 transitions. [2021-11-07 15:25:27,113 INFO L78 Accepts]: Start accepts. Automaton has 46488 states and 63068 transitions. Word has length 197 [2021-11-07 15:25:27,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:25:27,114 INFO L470 AbstractCegarLoop]: Abstraction has 46488 states and 63068 transitions. [2021-11-07 15:25:27,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 2 states have internal predecessors, (197), 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) [2021-11-07 15:25:27,115 INFO L276 IsEmpty]: Start isEmpty. Operand 46488 states and 63068 transitions. [2021-11-07 15:25:27,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-07 15:25:27,120 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:25:27,120 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:25:27,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 15:25:27,120 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 15:25:27,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:25:27,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1943385216, now seen corresponding path program 1 times [2021-11-07 15:25:27,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:25:27,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639362171] [2021-11-07 15:25:27,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:25:27,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms