./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.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-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 265e49c3377c52c97dc3fc0a083b7daee63958176975b73f1e1d54651892cb04 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 17:35:28,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 17:35:28,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 17:35:28,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 17:35:28,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 17:35:28,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 17:35:28,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 17:35:28,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 17:35:28,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 17:35:28,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 17:35:28,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 17:35:28,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 17:35:28,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 17:35:28,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 17:35:28,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 17:35:28,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 17:35:28,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 17:35:28,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 17:35:28,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 17:35:28,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 17:35:28,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 17:35:28,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 17:35:28,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 17:35:28,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 17:35:28,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 17:35:28,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 17:35:28,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 17:35:28,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 17:35:28,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 17:35:28,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 17:35:28,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 17:35:28,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 17:35:28,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 17:35:28,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 17:35:28,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 17:35:28,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 17:35:28,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 17:35:28,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 17:35:28,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 17:35:28,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 17:35:28,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 17:35:28,251 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 17:35:28,283 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 17:35:28,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 17:35:28,284 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 17:35:28,284 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 17:35:28,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 17:35:28,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 17:35:28,286 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 17:35:28,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 17:35:28,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 17:35:28,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 17:35:28,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 17:35:28,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 17:35:28,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 17:35:28,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 17:35:28,288 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 17:35:28,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 17:35:28,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 17:35:28,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 17:35:28,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 17:35:28,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:35:28,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 17:35:28,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 17:35:28,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 17:35:28,290 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 17:35:28,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 17:35:28,290 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 17:35:28,290 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 17:35:28,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 17:35:28,291 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 17:35:28,291 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 265e49c3377c52c97dc3fc0a083b7daee63958176975b73f1e1d54651892cb04 [2021-11-07 17:35:28,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 17:35:28,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 17:35:28,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 17:35:28,517 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 17:35:28,518 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 17:35:28,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i [2021-11-07 17:35:28,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fecfb8151/b0bf3fb9c7724417a8172f115c061c40/FLAGfdd3d72e6 [2021-11-07 17:35:29,314 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 17:35:29,315 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i [2021-11-07 17:35:29,368 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fecfb8151/b0bf3fb9c7724417a8172f115c061c40/FLAGfdd3d72e6 [2021-11-07 17:35:29,556 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fecfb8151/b0bf3fb9c7724417a8172f115c061c40 [2021-11-07 17:35:29,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 17:35:29,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 17:35:29,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 17:35:29,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 17:35:29,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 17:35:29,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:35:29" (1/1) ... [2021-11-07 17:35:29,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a39b00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:29, skipping insertion in model container [2021-11-07 17:35:29,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:35:29" (1/1) ... [2021-11-07 17:35:29,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 17:35:29,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 17:35:32,048 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[372884,372897] [2021-11-07 17:35:32,051 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373053,373066] [2021-11-07 17:35:32,051 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373220,373233] [2021-11-07 17:35:32,052 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373388,373401] [2021-11-07 17:35:32,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:35:32,133 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 17:35:32,444 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[372884,372897] [2021-11-07 17:35:32,445 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373053,373066] [2021-11-07 17:35:32,446 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373220,373233] [2021-11-07 17:35:32,446 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373388,373401] [2021-11-07 17:35:32,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:35:32,577 INFO L208 MainTranslator]: Completed translation [2021-11-07 17:35:32,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:32 WrapperNode [2021-11-07 17:35:32,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 17:35:32,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 17:35:32,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 17:35:32,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 17:35:32,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:32" (1/1) ... [2021-11-07 17:35:32,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:32" (1/1) ... [2021-11-07 17:35:34,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 17:35:34,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 17:35:34,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 17:35:34,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 17:35:34,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:32" (1/1) ... [2021-11-07 17:35:34,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:32" (1/1) ... [2021-11-07 17:35:35,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:32" (1/1) ... [2021-11-07 17:35:35,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:32" (1/1) ... [2021-11-07 17:35:35,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:32" (1/1) ... [2021-11-07 17:35:35,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:32" (1/1) ... [2021-11-07 17:35:36,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:32" (1/1) ... [2021-11-07 17:35:36,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 17:35:36,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 17:35:36,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 17:35:36,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 17:35:36,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:32" (1/1) ... [2021-11-07 17:35:36,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:35:36,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 17:35:36,375 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 17:35:36,390 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 17:35:36,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 17:35:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 17:35:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 17:35:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 17:35:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 17:35:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 17:35:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 17:35:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 17:35:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 17:35:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 17:35:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 17:35:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 17:35:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 17:35:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 17:35:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 17:36:12,403 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 17:36:12,403 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-07 17:36:12,404 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 17:36:12,404 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-07 17:36:12,404 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 17:36:12,406 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 17:36:12,407 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 17:36:12,459 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 17:36:12,460 INFO L299 CfgBuilder]: Removed 11536 assume(true) statements. [2021-11-07 17:36:12,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:36:12 BoogieIcfgContainer [2021-11-07 17:36:12,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 17:36:12,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 17:36:12,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 17:36:12,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 17:36:12,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:35:29" (1/3) ... [2021-11-07 17:36:12,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7671a36b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:36:12, skipping insertion in model container [2021-11-07 17:36:12,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:32" (2/3) ... [2021-11-07 17:36:12,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7671a36b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:36:12, skipping insertion in model container [2021-11-07 17:36:12,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:36:12" (3/3) ... [2021-11-07 17:36:12,478 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i [2021-11-07 17:36:12,486 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 17:36:12,486 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2021-11-07 17:36:12,577 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 17:36:12,585 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 17:36:12,585 INFO L340 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2021-11-07 17:36:12,746 INFO L276 IsEmpty]: Start isEmpty. Operand has 11292 states, 11264 states have (on average 1.3313210227272727) internal successors, (14996), 11291 states have internal predecessors, (14996), 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 17:36:12,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 17:36:12,757 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:36:12,758 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] [2021-11-07 17:36:12,758 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-07 17:36:12,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:36:12,763 INFO L85 PathProgramCache]: Analyzing trace with hash -896382054, now seen corresponding path program 1 times [2021-11-07 17:36:12,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:36:12,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875142292] [2021-11-07 17:36:12,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:36:12,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:36:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:36:13,403 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 17:36:13,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:36:13,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875142292] [2021-11-07 17:36:13,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875142292] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:36:13,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:36:13,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:36:13,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026993240] [2021-11-07 17:36:13,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:36:13,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:36:13,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:36:13,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:36:13,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:36:13,471 INFO L87 Difference]: Start difference. First operand has 11292 states, 11264 states have (on average 1.3313210227272727) internal successors, (14996), 11291 states have internal predecessors, (14996), 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) Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 17:36:15,539 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 [] [2021-11-07 17:36:16,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:36:16,790 INFO L93 Difference]: Finished difference Result 33528 states and 44545 transitions. [2021-11-07 17:36:16,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:36:16,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2021-11-07 17:36:16,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:36:16,906 INFO L225 Difference]: With dead ends: 33528 [2021-11-07 17:36:16,907 INFO L226 Difference]: Without dead ends: 22107 [2021-11-07 17:36:16,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.98ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:36:16,955 INFO L933 BasicCegarLoop]: 14943 mSDtfsCounter, 14686 mSDsluCounter, 14903 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2064.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14686 SdHoareTripleChecker+Valid, 29846 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 69.72ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2200.15ms IncrementalHoareTripleChecker+Time [2021-11-07 17:36:16,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14686 Valid, 29846 Invalid, 14 Unknown, 0 Unchecked, 69.72ms Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2200.15ms Time] [2021-11-07 17:36:17,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22107 states. [2021-11-07 17:36:17,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22107 to 22099. [2021-11-07 17:36:17,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22099 states, 22071 states have (on average 1.3200126863304789) internal successors, (29134), 22098 states have internal predecessors, (29134), 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 17:36:17,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22099 states to 22099 states and 29134 transitions. [2021-11-07 17:36:17,860 INFO L78 Accepts]: Start accepts. Automaton has 22099 states and 29134 transitions. Word has length 45 [2021-11-07 17:36:17,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:36:17,861 INFO L470 AbstractCegarLoop]: Abstraction has 22099 states and 29134 transitions. [2021-11-07 17:36:17,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 17:36:17,863 INFO L276 IsEmpty]: Start isEmpty. Operand 22099 states and 29134 transitions. [2021-11-07 17:36:17,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 17:36:17,871 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:36:17,871 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] [2021-11-07 17:36:17,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 17:36:17,872 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-07 17:36:17,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:36:17,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1966733374, now seen corresponding path program 1 times [2021-11-07 17:36:17,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:36:17,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898698609] [2021-11-07 17:36:17,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:36:17,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:36:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:36:18,104 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 17:36:18,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:36:18,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898698609] [2021-11-07 17:36:18,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898698609] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:36:18,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:36:18,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:36:18,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761858450] [2021-11-07 17:36:18,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:36:18,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:36:18,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:36:18,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:36:18,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:36:18,108 INFO L87 Difference]: Start difference. First operand 22099 states and 29134 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 17:36:20,183 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:36:21,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:36:21,623 INFO L93 Difference]: Finished difference Result 65383 states and 86264 transitions. [2021-11-07 17:36:21,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:36:21,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2021-11-07 17:36:21,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:36:21,775 INFO L225 Difference]: With dead ends: 65383 [2021-11-07 17:36:21,775 INFO L226 Difference]: Without dead ends: 43368 [2021-11-07 17:36:21,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.30ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:36:21,831 INFO L933 BasicCegarLoop]: 14671 mSDtfsCounter, 14207 mSDsluCounter, 14544 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2143.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14207 SdHoareTripleChecker+Valid, 29215 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.25ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2329.55ms IncrementalHoareTripleChecker+Time [2021-11-07 17:36:21,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14207 Valid, 29215 Invalid, 41 Unknown, 0 Unchecked, 42.25ms Time], IncrementalHoareTripleChecker [10 Valid, 30 Invalid, 1 Unknown, 0 Unchecked, 2329.55ms Time] [2021-11-07 17:36:21,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43368 states. [2021-11-07 17:36:22,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43368 to 43204. [2021-11-07 17:36:23,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43204 states, 43176 states have (on average 1.3214748934593292) internal successors, (57056), 43203 states have internal predecessors, (57056), 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 17:36:23,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43204 states to 43204 states and 57056 transitions. [2021-11-07 17:36:23,153 INFO L78 Accepts]: Start accepts. Automaton has 43204 states and 57056 transitions. Word has length 52 [2021-11-07 17:36:23,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:36:23,154 INFO L470 AbstractCegarLoop]: Abstraction has 43204 states and 57056 transitions. [2021-11-07 17:36:23,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 17:36:23,155 INFO L276 IsEmpty]: Start isEmpty. Operand 43204 states and 57056 transitions. [2021-11-07 17:36:23,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 17:36:23,159 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:36:23,159 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 17:36:23,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 17:36:23,160 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-07 17:36:23,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:36:23,161 INFO L85 PathProgramCache]: Analyzing trace with hash 4408613, now seen corresponding path program 1 times [2021-11-07 17:36:23,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:36:23,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231410320] [2021-11-07 17:36:23,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:36:23,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:36:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:36:23,392 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:36:23,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:36:23,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231410320] [2021-11-07 17:36:23,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231410320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:36:23,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:36:23,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:36:23,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52894484] [2021-11-07 17:36:23,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:36:23,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:36:23,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:36:23,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:36:23,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:36:23,397 INFO L87 Difference]: Start difference. First operand 43204 states and 57056 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 17:36:25,449 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 [] [2021-11-07 17:36:26,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:36:26,744 INFO L93 Difference]: Finished difference Result 86328 states and 114020 transitions. [2021-11-07 17:36:26,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:36:26,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2021-11-07 17:36:26,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:36:26,924 INFO L225 Difference]: With dead ends: 86328 [2021-11-07 17:36:26,925 INFO L226 Difference]: Without dead ends: 64688 [2021-11-07 17:36:26,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.25ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:36:26,997 INFO L933 BasicCegarLoop]: 29134 mSDtfsCounter, 14505 mSDsluCounter, 14617 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2059.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14505 SdHoareTripleChecker+Valid, 43751 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.87ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2193.29ms IncrementalHoareTripleChecker+Time [2021-11-07 17:36:26,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14505 Valid, 43751 Invalid, 10 Unknown, 0 Unchecked, 32.87ms Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 1 Unknown, 0 Unchecked, 2193.29ms Time] [2021-11-07 17:36:27,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64688 states. [2021-11-07 17:36:28,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64688 to 64678. [2021-11-07 17:36:28,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64678 states, 64650 states have (on average 1.3217169373549884) internal successors, (85449), 64677 states have internal predecessors, (85449), 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 17:36:28,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64678 states to 64678 states and 85449 transitions. [2021-11-07 17:36:28,496 INFO L78 Accepts]: Start accepts. Automaton has 64678 states and 85449 transitions. Word has length 70 [2021-11-07 17:36:28,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:36:28,496 INFO L470 AbstractCegarLoop]: Abstraction has 64678 states and 85449 transitions. [2021-11-07 17:36:28,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 17:36:28,497 INFO L276 IsEmpty]: Start isEmpty. Operand 64678 states and 85449 transitions. [2021-11-07 17:36:28,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 17:36:28,499 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:36:28,500 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 17:36:28,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 17:36:28,500 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-07 17:36:28,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:36:28,501 INFO L85 PathProgramCache]: Analyzing trace with hash 262574051, now seen corresponding path program 1 times [2021-11-07 17:36:28,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:36:28,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586363995] [2021-11-07 17:36:28,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:36:28,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:36:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:36:28,737 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:36:28,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:36:28,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586363995] [2021-11-07 17:36:28,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586363995] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:36:28,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:36:28,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:36:28,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164316681] [2021-11-07 17:36:28,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:36:28,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:36:28,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:36:28,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:36:28,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:36:28,740 INFO L87 Difference]: Start difference. First operand 64678 states and 85449 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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 17:36:30,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:36:30,243 INFO L93 Difference]: Finished difference Result 64678 states and 85449 transitions. [2021-11-07 17:36:30,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:36:30,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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 70 [2021-11-07 17:36:30,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:36:30,386 INFO L225 Difference]: With dead ends: 64678 [2021-11-07 17:36:30,387 INFO L226 Difference]: Without dead ends: 64674 [2021-11-07 17:36:30,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.91ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:36:30,414 INFO L933 BasicCegarLoop]: 14674 mSDtfsCounter, 14618 mSDsluCounter, 14610 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14618 SdHoareTripleChecker+Valid, 29284 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.67ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 106.20ms IncrementalHoareTripleChecker+Time [2021-11-07 17:36:30,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14618 Valid, 29284 Invalid, 70 Unknown, 0 Unchecked, 43.67ms Time], IncrementalHoareTripleChecker [22 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 106.20ms Time] [2021-11-07 17:36:30,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64674 states. [2021-11-07 17:36:31,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64674 to 64674. [2021-11-07 17:36:31,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64674 states, 64648 states have (on average 1.321695953471105) internal successors, (85445), 64673 states have internal predecessors, (85445), 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 17:36:32,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64674 states to 64674 states and 85445 transitions. [2021-11-07 17:36:32,104 INFO L78 Accepts]: Start accepts. Automaton has 64674 states and 85445 transitions. Word has length 70 [2021-11-07 17:36:32,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:36:32,104 INFO L470 AbstractCegarLoop]: Abstraction has 64674 states and 85445 transitions. [2021-11-07 17:36:32,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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 17:36:32,105 INFO L276 IsEmpty]: Start isEmpty. Operand 64674 states and 85445 transitions. [2021-11-07 17:36:32,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 17:36:32,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:36:32,108 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 17:36:32,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 17:36:32,108 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-07 17:36:32,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:36:32,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1069266618, now seen corresponding path program 1 times [2021-11-07 17:36:32,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:36:32,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424337777] [2021-11-07 17:36:32,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:36:32,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:36:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:36:32,337 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:36:32,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:36:32,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424337777] [2021-11-07 17:36:32,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424337777] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:36:32,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:36:32,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:36:32,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510536527] [2021-11-07 17:36:32,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:36:32,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:36:32,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:36:32,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:36:32,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:36:32,344 INFO L87 Difference]: Start difference. First operand 64674 states and 85445 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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 17:36:33,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:36:33,756 INFO L93 Difference]: Finished difference Result 64674 states and 85445 transitions. [2021-11-07 17:36:33,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:36:33,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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 72 [2021-11-07 17:36:33,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:36:33,893 INFO L225 Difference]: With dead ends: 64674 [2021-11-07 17:36:33,894 INFO L226 Difference]: Without dead ends: 64670 [2021-11-07 17:36:33,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.46ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:36:33,918 INFO L933 BasicCegarLoop]: 14670 mSDtfsCounter, 14610 mSDsluCounter, 14608 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14610 SdHoareTripleChecker+Valid, 29278 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.21ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.02ms IncrementalHoareTripleChecker+Time [2021-11-07 17:36:33,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14610 Valid, 29278 Invalid, 70 Unknown, 0 Unchecked, 28.21ms Time], IncrementalHoareTripleChecker [24 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 66.02ms Time] [2021-11-07 17:36:33,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64670 states. [2021-11-07 17:36:35,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64670 to 64670. [2021-11-07 17:36:35,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64670 states, 64646 states have (on average 1.3216749682888347) internal successors, (85441), 64669 states have internal predecessors, (85441), 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 17:36:35,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64670 states to 64670 states and 85441 transitions. [2021-11-07 17:36:35,460 INFO L78 Accepts]: Start accepts. Automaton has 64670 states and 85441 transitions. Word has length 72 [2021-11-07 17:36:35,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:36:35,462 INFO L470 AbstractCegarLoop]: Abstraction has 64670 states and 85441 transitions. [2021-11-07 17:36:35,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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 17:36:35,462 INFO L276 IsEmpty]: Start isEmpty. Operand 64670 states and 85441 transitions. [2021-11-07 17:36:35,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 17:36:35,470 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:36:35,471 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 17:36:35,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 17:36:35,471 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-07 17:36:35,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:36:35,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1067894999, now seen corresponding path program 1 times [2021-11-07 17:36:35,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:36:35,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195957461] [2021-11-07 17:36:35,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:36:35,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:36:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:36:35,683 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:36:35,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:36:35,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195957461] [2021-11-07 17:36:35,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195957461] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:36:35,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:36:35,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:36:35,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438132629] [2021-11-07 17:36:35,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:36:35,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:36:35,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:36:35,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:36:35,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:36:35,687 INFO L87 Difference]: Start difference. First operand 64670 states and 85441 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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 17:36:37,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:36:37,111 INFO L93 Difference]: Finished difference Result 64670 states and 85441 transitions. [2021-11-07 17:36:37,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:36:37,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-11-07 17:36:37,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:36:37,238 INFO L225 Difference]: With dead ends: 64670 [2021-11-07 17:36:37,239 INFO L226 Difference]: Without dead ends: 64666 [2021-11-07 17:36:37,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.30ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:36:37,269 INFO L933 BasicCegarLoop]: 14666 mSDtfsCounter, 14604 mSDsluCounter, 14606 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14604 SdHoareTripleChecker+Valid, 29272 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.29ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82.49ms IncrementalHoareTripleChecker+Time [2021-11-07 17:36:37,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14604 Valid, 29272 Invalid, 68 Unknown, 0 Unchecked, 31.29ms Time], IncrementalHoareTripleChecker [24 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 82.49ms Time] [2021-11-07 17:36:37,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64666 states. [2021-11-07 17:36:39,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64666 to 64666. [2021-11-07 17:36:39,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64666 states, 64644 states have (on average 1.3216539818080564) internal successors, (85437), 64665 states have internal predecessors, (85437), 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 17:36:39,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64666 states to 64666 states and 85437 transitions. [2021-11-07 17:36:39,182 INFO L78 Accepts]: Start accepts. Automaton has 64666 states and 85437 transitions. Word has length 74 [2021-11-07 17:36:39,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:36:39,183 INFO L470 AbstractCegarLoop]: Abstraction has 64666 states and 85437 transitions. [2021-11-07 17:36:39,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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 17:36:39,183 INFO L276 IsEmpty]: Start isEmpty. Operand 64666 states and 85437 transitions. [2021-11-07 17:36:39,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-07 17:36:39,186 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:36:39,186 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 17:36:39,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 17:36:39,186 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-07 17:36:39,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:36:39,187 INFO L85 PathProgramCache]: Analyzing trace with hash 250231180, now seen corresponding path program 1 times [2021-11-07 17:36:39,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:36:39,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239451203] [2021-11-07 17:36:39,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:36:39,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:36:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:36:39,407 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:36:39,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:36:39,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239451203] [2021-11-07 17:36:39,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239451203] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:36:39,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:36:39,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:36:39,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928610658] [2021-11-07 17:36:39,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:36:39,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:36:39,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:36:39,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:36:39,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:36:39,410 INFO L87 Difference]: Start difference. First operand 64666 states and 85437 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:36:40,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:36:40,880 INFO L93 Difference]: Finished difference Result 64666 states and 85437 transitions. [2021-11-07 17:36:40,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:36:40,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-07 17:36:40,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:36:40,993 INFO L225 Difference]: With dead ends: 64666 [2021-11-07 17:36:40,993 INFO L226 Difference]: Without dead ends: 64662 [2021-11-07 17:36:41,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.47ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:36:41,019 INFO L933 BasicCegarLoop]: 14662 mSDtfsCounter, 14598 mSDsluCounter, 14604 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14598 SdHoareTripleChecker+Valid, 29266 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.67ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.53ms IncrementalHoareTripleChecker+Time [2021-11-07 17:36:41,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14598 Valid, 29266 Invalid, 66 Unknown, 0 Unchecked, 27.67ms Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 67.53ms Time] [2021-11-07 17:36:41,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64662 states. [2021-11-07 17:36:42,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64662 to 64662. [2021-11-07 17:36:42,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64662 states, 64642 states have (on average 1.3216329940286502) internal successors, (85433), 64661 states have internal predecessors, (85433), 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 17:36:42,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64662 states to 64662 states and 85433 transitions. [2021-11-07 17:36:42,964 INFO L78 Accepts]: Start accepts. Automaton has 64662 states and 85433 transitions. Word has length 76 [2021-11-07 17:36:42,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:36:42,965 INFO L470 AbstractCegarLoop]: Abstraction has 64662 states and 85433 transitions. [2021-11-07 17:36:42,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:36:42,965 INFO L276 IsEmpty]: Start isEmpty. Operand 64662 states and 85433 transitions. [2021-11-07 17:36:42,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 17:36:42,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:36:42,973 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 17:36:42,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 17:36:42,974 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-07 17:36:42,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:36:42,974 INFO L85 PathProgramCache]: Analyzing trace with hash -45862801, now seen corresponding path program 1 times [2021-11-07 17:36:42,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:36:42,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746822471] [2021-11-07 17:36:42,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:36:42,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:36:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:36:43,168 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:36:43,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:36:43,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746822471] [2021-11-07 17:36:43,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746822471] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:36:43,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:36:43,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:36:43,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722081249] [2021-11-07 17:36:43,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:36:43,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:36:43,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:36:43,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:36:43,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:36:43,171 INFO L87 Difference]: Start difference. First operand 64662 states and 85433 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 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)