./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 fcb8e130 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-dev-fcb8e13 [2021-11-23 01:03:28,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:03:28,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:03:28,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:03:28,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:03:28,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:03:28,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:03:28,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:03:28,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:03:28,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:03:28,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:03:28,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:03:28,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:03:28,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:03:28,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:03:28,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:03:28,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:03:28,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:03:28,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:03:28,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:03:28,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:03:28,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:03:28,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:03:28,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:03:28,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:03:28,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:03:28,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:03:28,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:03:28,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:03:28,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:03:28,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:03:28,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:03:28,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:03:28,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:03:28,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:03:28,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:03:28,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:03:28,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:03:28,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:03:28,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:03:28,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:03:28,209 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 01:03:28,241 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:03:28,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:03:28,242 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 01:03:28,242 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 01:03:28,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:03:28,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:03:28,243 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 01:03:28,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:03:28,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:03:28,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:03:28,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:03:28,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:03:28,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:03:28,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:03:28,245 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:03:28,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:03:28,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:03:28,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 01:03:28,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 01:03:28,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:03:28,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:03:28,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:03:28,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:03:28,247 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 01:03:28,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:03:28,247 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 01:03:28,247 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 01:03:28,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:03:28,248 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 01:03:28,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e656e08f859c02a2fcbde115f6fa3d541385535606558c0d455741014c679db [2021-11-23 01:03:28,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:03:28,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:03:28,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:03:28,504 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:03:28,505 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:03:28,507 INFO L432 ainManager$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 [2021-11-23 01:03:28,567 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76ec63540/48708bebdd484f2f841ab8dc7267adb6/FLAG1959e1b04 [2021-11-23 01:03:29,381 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:03:29,382 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 [2021-11-23 01:03:29,431 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76ec63540/48708bebdd484f2f841ab8dc7267adb6/FLAG1959e1b04 [2021-11-23 01:03:29,582 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76ec63540/48708bebdd484f2f841ab8dc7267adb6 [2021-11-23 01:03:29,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:03:29,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:03:29,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:03:29,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:03:29,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:03:29,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:03:29" (1/1) ... [2021-11-23 01:03:29,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d81de7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:29, skipping insertion in model container [2021-11-23 01:03:29,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:03:29" (1/1) ... [2021-11-23 01:03:29,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:03:29,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:03:33,808 WARN L230 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] [2021-11-23 01:03:34,057 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:03:34,147 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:03:34,529 WARN L230 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] [2021-11-23 01:03:34,569 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:03:34,938 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:03:34,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:34 WrapperNode [2021-11-23 01:03:34,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:03:34,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:03:34,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:03:34,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:03:34,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:34" (1/1) ... [2021-11-23 01:03:35,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:34" (1/1) ... [2021-11-23 01:03:37,165 INFO L137 Inliner]: procedures = 616, calls = 8387, calls flagged for inlining = 1996, calls inlined = 9943, statements flattened = 118513 [2021-11-23 01:03:37,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:03:37,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:03:37,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:03:37,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:03:37,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:34" (1/1) ... [2021-11-23 01:03:37,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:34" (1/1) ... [2021-11-23 01:03:37,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:34" (1/1) ... [2021-11-23 01:03:37,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:34" (1/1) ... [2021-11-23 01:03:39,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:34" (1/1) ... [2021-11-23 01:03:39,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:34" (1/1) ... [2021-11-23 01:03:39,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:34" (1/1) ... [2021-11-23 01:03:40,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:03:40,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:03:40,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:03:40,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:03:40,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:34" (1/1) ... [2021-11-23 01:03:40,061 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:03:40,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 01:03:40,077 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) [2021-11-23 01:03:40,091 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 [2021-11-23 01:03:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:03:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 01:03:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 01:03:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:03:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:03:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:03:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:03:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 01:03:40,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 01:03:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:03:40,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:03:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 01:03:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 01:03:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_scan_stm [2021-11-23 01:03:40,106 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_scan_stm [2021-11-23 01:03:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:03:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:03:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 01:03:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:03:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_plt_init [2021-11-23 01:03:40,107 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_plt_init [2021-11-23 01:03:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:03:41,670 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:03:41,671 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:05:38,429 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:05:38,483 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:05:38,484 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 01:05:38,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:05:38 BoogieIcfgContainer [2021-11-23 01:05:38,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:05:38,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 01:05:38,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 01:05:38,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 01:05:38,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:03:29" (1/3) ... [2021-11-23 01:05:38,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b5127f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:05:38, skipping insertion in model container [2021-11-23 01:05:38,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:34" (2/3) ... [2021-11-23 01:05:38,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b5127f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:05:38, skipping insertion in model container [2021-11-23 01:05:38,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:05:38" (3/3) ... [2021-11-23 01:05:38,507 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 [2021-11-23 01:05:38,511 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 01:05:38,511 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-23 01:05:38,593 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 01:05:38,601 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 [2021-11-23 01:05:38,601 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-23 01:05:38,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 18725 states, 18698 states have (on average 1.380094127714194) internal successors, (25805), 18708 states have internal predecessors, (25805), 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) [2021-11-23 01:05:38,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-23 01:05:38,812 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:05:38,813 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] [2021-11-23 01:05:38,813 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)] === [2021-11-23 01:05:38,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:05:38,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1527333378, now seen corresponding path program 1 times [2021-11-23 01:05:38,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 01:05:38,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111163746] [2021-11-23 01:05:38,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:05:38,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:39,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-23 01:05:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:39,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-23 01:05:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:39,963 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 01:05:39,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 01:05:39,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111163746] [2021-11-23 01:05:39,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111163746] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:05:39,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:05:39,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 01:05:39,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220005182] [2021-11-23 01:05:39,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:05:39,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:05:39,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 01:05:39,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:05:39,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:05:40,022 INFO L87 Difference]: Start difference. First operand has 18725 states, 18698 states have (on average 1.380094127714194) internal successors, (25805), 18708 states have internal predecessors, (25805), 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) [2021-11-23 01:05:42,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:05:47,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:05:50,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:05:52,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:05:54,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:06:08,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:06:08,249 INFO L93 Difference]: Finished difference Result 37487 states and 51759 transitions. [2021-11-23 01:06:08,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:06:08,252 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 [2021-11-23 01:06:08,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:06:08,349 INFO L225 Difference]: With dead ends: 37487 [2021-11-23 01:06:08,349 INFO L226 Difference]: Without dead ends: 18680 [2021-11-23 01:06:08,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:06:08,401 INFO L933 BasicCegarLoop]: 24892 mSDtfsCounter, 100 mSDsluCounter, 19944 mSDsCounter, 0 mSdLazyCounter, 4925 mSolverCounterSat, 21 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 44836 SdHoareTripleChecker+Invalid, 4949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 4925 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.5s IncrementalHoareTripleChecker+Time [2021-11-23 01:06:08,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 44836 Invalid, 4949 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 4925 Invalid, 3 Unknown, 0 Unchecked, 27.5s Time] [2021-11-23 01:06:08,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18680 states. [2021-11-23 01:06:08,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18680 to 18633. [2021-11-23 01:06:08,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18633 states, 18607 states have (on average 1.3274036652872574) internal successors, (24699), 18616 states have internal predecessors, (24699), 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) [2021-11-23 01:06:08,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18633 states to 18633 states and 24733 transitions. [2021-11-23 01:06:08,862 INFO L78 Accepts]: Start accepts. Automaton has 18633 states and 24733 transitions. Word has length 186 [2021-11-23 01:06:08,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:06:08,863 INFO L470 AbstractCegarLoop]: Abstraction has 18633 states and 24733 transitions. [2021-11-23 01:06:08,864 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) [2021-11-23 01:06:08,865 INFO L276 IsEmpty]: Start isEmpty. Operand 18633 states and 24733 transitions. [2021-11-23 01:06:08,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-23 01:06:08,893 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:06:08,893 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] [2021-11-23 01:06:08,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 01:06:08,894 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)] === [2021-11-23 01:06:08,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:06:08,895 INFO L85 PathProgramCache]: Analyzing trace with hash -9036556, now seen corresponding path program 1 times [2021-11-23 01:06:08,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 01:06:08,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463202396] [2021-11-23 01:06:08,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:06:08,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:09,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-23 01:06:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:09,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-23 01:06:09,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:09,789 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 01:06:09,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 01:06:09,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463202396] [2021-11-23 01:06:09,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463202396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:06:09,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:06:09,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:06:09,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143099151] [2021-11-23 01:06:09,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:06:09,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:06:09,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 01:06:09,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:06:09,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:06:09,792 INFO L87 Difference]: Start difference. First operand 18633 states and 24733 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) [2021-11-23 01:06:13,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:06:16,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:06:21,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:06:23,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:06:25,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:06:27,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:06:29,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:06:31,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:06:38,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:06:40,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:06:44,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:06:48,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:06:50,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:06:57,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:06:57,292 INFO L93 Difference]: Finished difference Result 43915 states and 58353 transitions. [2021-11-23 01:06:57,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 01:06:57,293 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 [2021-11-23 01:06:57,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:06:57,391 INFO L225 Difference]: With dead ends: 43915 [2021-11-23 01:06:57,392 INFO L226 Difference]: Without dead ends: 25396 [2021-11-23 01:06:57,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:06:57,429 INFO L933 BasicCegarLoop]: 28766 mSDtfsCounter, 9100 mSDsluCounter, 46754 mSDsCounter, 0 mSdLazyCounter, 6584 mSolverCounterSat, 56 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9105 SdHoareTripleChecker+Valid, 75520 SdHoareTripleChecker+Invalid, 6650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 6584 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.7s IncrementalHoareTripleChecker+Time [2021-11-23 01:06:57,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9105 Valid, 75520 Invalid, 6650 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 6584 Invalid, 10 Unknown, 0 Unchecked, 46.7s Time] [2021-11-23 01:06:57,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25396 states. [2021-11-23 01:06:57,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25396 to 25330. [2021-11-23 01:06:57,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25330 states, 25287 states have (on average 1.328469173883814) internal successors, (33593), 25300 states have internal predecessors, (33593), 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) [2021-11-23 01:06:57,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25330 states to 25330 states and 33669 transitions. [2021-11-23 01:06:57,921 INFO L78 Accepts]: Start accepts. Automaton has 25330 states and 33669 transitions. Word has length 188 [2021-11-23 01:06:57,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:06:57,922 INFO L470 AbstractCegarLoop]: Abstraction has 25330 states and 33669 transitions. [2021-11-23 01:06:57,922 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) [2021-11-23 01:06:57,922 INFO L276 IsEmpty]: Start isEmpty. Operand 25330 states and 33669 transitions. [2021-11-23 01:06:57,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-23 01:06:57,931 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:06:57,931 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] [2021-11-23 01:06:57,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 01:06:57,932 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)] === [2021-11-23 01:06:57,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:06:57,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1763799327, now seen corresponding path program 1 times [2021-11-23 01:06:57,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 01:06:57,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212825304] [2021-11-23 01:06:57,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:06:57,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:58,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:06:58,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 01:06:58,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212825304] [2021-11-23 01:06:58,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212825304] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:06:58,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:06:58,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 01:06:58,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811702752] [2021-11-23 01:06:58,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:06:58,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:06:58,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 01:06:58,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:06:58,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:06:58,749 INFO L87 Difference]: Start difference. First operand 25330 states and 33669 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2021-11-23 01:06:59,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:06:59,789 INFO L93 Difference]: Finished difference Result 74322 states and 99302 transitions. [2021-11-23 01:06:59,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:06:59,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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 189 [2021-11-23 01:06:59,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:06:59,920 INFO L225 Difference]: With dead ends: 74322 [2021-11-23 01:06:59,920 INFO L226 Difference]: Without dead ends: 49106 [2021-11-23 01:07:00,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:07:00,010 INFO L933 BasicCegarLoop]: 24747 mSDtfsCounter, 23812 mSDsluCounter, 24712 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23812 SdHoareTripleChecker+Valid, 49459 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 01:07:00,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23812 Valid, 49459 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 01:07:00,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49106 states. [2021-11-23 01:07:01,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49106 to 49102. [2021-11-23 01:07:01,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49102 states, 49022 states have (on average 1.3382562930928972) internal successors, (65604), 49043 states have internal predecessors, (65604), 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) [2021-11-23 01:07:01,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49102 states to 49102 states and 65756 transitions. [2021-11-23 01:07:01,196 INFO L78 Accepts]: Start accepts. Automaton has 49102 states and 65756 transitions. Word has length 189 [2021-11-23 01:07:01,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:07:01,197 INFO L470 AbstractCegarLoop]: Abstraction has 49102 states and 65756 transitions. [2021-11-23 01:07:01,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2021-11-23 01:07:01,198 INFO L276 IsEmpty]: Start isEmpty. Operand 49102 states and 65756 transitions. [2021-11-23 01:07:01,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-23 01:07:01,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:07:01,203 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] [2021-11-23 01:07:01,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 01:07:01,204 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)] === [2021-11-23 01:07:01,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:07:01,204 INFO L85 PathProgramCache]: Analyzing trace with hash -289974604, now seen corresponding path program 1 times [2021-11-23 01:07:01,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 01:07:01,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641479997] [2021-11-23 01:07:01,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:07:01,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:02,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:07:02,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 01:07:02,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641479997] [2021-11-23 01:07:02,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641479997] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:07:02,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:07:02,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 01:07:02,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285219295] [2021-11-23 01:07:02,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:07:02,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:07:02,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 01:07:02,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:07:02,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:07:02,384 INFO L87 Difference]: Start difference. First operand 49102 states and 65756 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) [2021-11-23 01:07:02,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:07:02,918 INFO L93 Difference]: Finished difference Result 49102 states and 65756 transitions. [2021-11-23 01:07:02,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:07:02,919 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 [2021-11-23 01:07:02,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:07:03,034 INFO L225 Difference]: With dead ends: 49102 [2021-11-23 01:07:03,034 INFO L226 Difference]: Without dead ends: 49100 [2021-11-23 01:07:03,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:07:03,065 INFO L933 BasicCegarLoop]: 24730 mSDtfsCounter, 24537 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24537 SdHoareTripleChecker+Valid, 24730 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 01:07:03,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24537 Valid, 24730 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 01:07:03,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49100 states. [2021-11-23 01:07:04,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49100 to 49100. [2021-11-23 01:07:04,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49100 states, 49021 states have (on average 1.338242793904653) internal successors, (65602), 49041 states have internal predecessors, (65602), 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) [2021-11-23 01:07:04,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49100 states to 49100 states and 65754 transitions. [2021-11-23 01:07:04,164 INFO L78 Accepts]: Start accepts. Automaton has 49100 states and 65754 transitions. Word has length 196 [2021-11-23 01:07:04,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:07:04,164 INFO L470 AbstractCegarLoop]: Abstraction has 49100 states and 65754 transitions. [2021-11-23 01:07:04,165 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) [2021-11-23 01:07:04,165 INFO L276 IsEmpty]: Start isEmpty. Operand 49100 states and 65754 transitions. [2021-11-23 01:07:04,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-23 01:07:04,169 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:07:04,170 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] [2021-11-23 01:07:04,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 01:07:04,172 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)] === [2021-11-23 01:07:04,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:07:04,173 INFO L85 PathProgramCache]: Analyzing trace with hash -399218991, now seen corresponding path program 1 times [2021-11-23 01:07:04,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 01:07:04,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954189159] [2021-11-23 01:07:04,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:07:04,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:05,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:07:05,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 01:07:05,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954189159] [2021-11-23 01:07:05,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954189159] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:07:05,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:07:05,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 01:07:05,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283140516] [2021-11-23 01:07:05,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:07:05,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:07:05,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 01:07:05,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:07:05,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:07:05,111 INFO L87 Difference]: Start difference. First operand 49100 states and 65754 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) [2021-11-23 01:07:05,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:07:05,692 INFO L93 Difference]: Finished difference Result 49100 states and 65754 transitions. [2021-11-23 01:07:05,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:07:05,692 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 [2021-11-23 01:07:05,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:07:05,805 INFO L225 Difference]: With dead ends: 49100 [2021-11-23 01:07:05,806 INFO L226 Difference]: Without dead ends: 49098 [2021-11-23 01:07:05,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:07:05,835 INFO L933 BasicCegarLoop]: 24728 mSDtfsCounter, 24534 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24534 SdHoareTripleChecker+Valid, 24728 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 01:07:05,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24534 Valid, 24728 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 01:07:05,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49098 states. [2021-11-23 01:07:06,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49098 to 49098. [2021-11-23 01:07:06,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49098 states, 49020 states have (on average 1.3382292941656466) internal successors, (65600), 49039 states have internal predecessors, (65600), 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) [2021-11-23 01:07:06,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49098 states to 49098 states and 65752 transitions. [2021-11-23 01:07:06,852 INFO L78 Accepts]: Start accepts. Automaton has 49098 states and 65752 transitions. Word has length 197 [2021-11-23 01:07:06,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:07:06,853 INFO L470 AbstractCegarLoop]: Abstraction has 49098 states and 65752 transitions. [2021-11-23 01:07:06,853 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) [2021-11-23 01:07:06,853 INFO L276 IsEmpty]: Start isEmpty. Operand 49098 states and 65752 transitions. [2021-11-23 01:07:06,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-23 01:07:06,858 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:07:06,858 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] [2021-11-23 01:07:06,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 01:07:06,858 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)] === [2021-11-23 01:07:06,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:07:06,859 INFO L85 PathProgramCache]: Analyzing trace with hash 509172319, now seen corresponding path program 1 times [2021-11-23 01:07:06,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 01:07:06,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793226984] [2021-11-23 01:07:06,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:07:06,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:07,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:07:07,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 01:07:07,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793226984] [2021-11-23 01:07:07,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793226984] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:07:07,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:07:07,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 01:07:07,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067647762] [2021-11-23 01:07:07,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:07:07,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:07:07,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 01:07:07,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:07:07,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:07:07,807 INFO L87 Difference]: Start difference. First operand 49098 states and 65752 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 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) [2021-11-23 01:07:08,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:07:08,415 INFO L93 Difference]: Finished difference Result 49098 states and 65752 transitions. [2021-11-23 01:07:08,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:07:08,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 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 198 [2021-11-23 01:07:08,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:07:08,583 INFO L225 Difference]: With dead ends: 49098 [2021-11-23 01:07:08,584 INFO L226 Difference]: Without dead ends: 49096 [2021-11-23 01:07:08,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:07:08,599 INFO L933 BasicCegarLoop]: 24726 mSDtfsCounter, 24531 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24531 SdHoareTripleChecker+Valid, 24726 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 01:07:08,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24531 Valid, 24726 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 01:07:08,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49096 states. [2021-11-23 01:07:09,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49096 to 49096. [2021-11-23 01:07:09,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49096 states, 49019 states have (on average 1.338215793875844) internal successors, (65598), 49037 states have internal predecessors, (65598), 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) [2021-11-23 01:07:09,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49096 states to 49096 states and 65750 transitions. [2021-11-23 01:07:09,504 INFO L78 Accepts]: Start accepts. Automaton has 49096 states and 65750 transitions. Word has length 198 [2021-11-23 01:07:09,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:07:09,504 INFO L470 AbstractCegarLoop]: Abstraction has 49096 states and 65750 transitions. [2021-11-23 01:07:09,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 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) [2021-11-23 01:07:09,504 INFO L276 IsEmpty]: Start isEmpty. Operand 49096 states and 65750 transitions. [2021-11-23 01:07:09,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-23 01:07:09,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:07:09,509 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, 1] [2021-11-23 01:07:09,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 01:07:09,510 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)] === [2021-11-23 01:07:09,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:07:09,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1395468132, now seen corresponding path program 1 times [2021-11-23 01:07:09,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 01:07:09,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457589653] [2021-11-23 01:07:09,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:07:09,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:10,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:07:10,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 01:07:10,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457589653] [2021-11-23 01:07:10,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457589653] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:07:10,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:07:10,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 01:07:10,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821482503] [2021-11-23 01:07:10,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:07:10,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:07:10,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 01:07:10,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:07:10,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:07:10,505 INFO L87 Difference]: Start difference. First operand 49096 states and 65750 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 2 states have internal predecessors, (199), 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)