./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--libertas--usb8xxx.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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--libertas--usb8xxx.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 1b605371288ab675786f884c3e899aa7b22c9968bb31ac2f2bc3b55776b1682d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-22 23:24:21,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:24:21,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:24:21,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:24:21,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:24:21,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:24:21,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:24:21,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:24:21,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:24:21,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:24:21,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:24:21,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:24:21,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:24:21,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:24:21,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:24:21,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:24:21,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:24:21,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:24:21,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:24:21,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:24:21,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:24:21,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:24:21,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:24:21,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:24:21,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:24:21,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:24:21,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:24:21,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:24:21,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:24:21,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:24:21,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:24:21,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:24:21,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:24:21,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:24:21,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:24:21,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:24:21,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:24:21,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:24:21,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:24:21,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:24:21,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:24:21,340 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 23:24:21,373 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:24:21,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:24:21,374 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 23:24:21,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 23:24:21,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:24:21,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:24:21,376 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 23:24:21,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:24:21,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:24:21,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:24:21,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:24:21,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:24:21,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:24:21,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:24:21,378 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:24:21,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:24:21,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:24:21,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 23:24:21,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 23:24:21,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:24:21,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:24:21,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:24:21,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:24:21,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 23:24:21,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:24:21,380 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 23:24:21,381 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 23:24:21,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:24:21,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 23:24:21,381 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b605371288ab675786f884c3e899aa7b22c9968bb31ac2f2bc3b55776b1682d [2021-11-22 23:24:21,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:24:21,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:24:21,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:24:21,664 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:24:21,665 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:24:21,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i [2021-11-22 23:24:21,727 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2b88fa3b/567dad49754249af92b0ca7e075dc488/FLAG331ee94dd [2021-11-22 23:24:22,433 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:24:22,434 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i [2021-11-22 23:24:22,483 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2b88fa3b/567dad49754249af92b0ca7e075dc488/FLAG331ee94dd [2021-11-22 23:24:22,742 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2b88fa3b/567dad49754249af92b0ca7e075dc488 [2021-11-22 23:24:22,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:24:22,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:24:22,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:24:22,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:24:22,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:24:22,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:24:22" (1/1) ... [2021-11-22 23:24:22,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@505234d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:22, skipping insertion in model container [2021-11-22 23:24:22,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:24:22" (1/1) ... [2021-11-22 23:24:22,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:24:22,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:24:23,752 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i[180577,180590] [2021-11-22 23:24:24,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:24:24,375 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:24:24,530 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i[180577,180590] [2021-11-22 23:24:24,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:24:24,692 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:24:24,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:24 WrapperNode [2021-11-22 23:24:24,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:24:24,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:24:24,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:24:24,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:24:24,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:24" (1/1) ... [2021-11-22 23:24:24,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:24" (1/1) ... [2021-11-22 23:24:24,880 INFO L137 Inliner]: procedures = 180, calls = 1285, calls flagged for inlining = 288, calls inlined = 224, statements flattened = 3801 [2021-11-22 23:24:24,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:24:24,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:24:24,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:24:24,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:24:24,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:24" (1/1) ... [2021-11-22 23:24:24,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:24" (1/1) ... [2021-11-22 23:24:24,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:24" (1/1) ... [2021-11-22 23:24:24,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:24" (1/1) ... [2021-11-22 23:24:25,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:24" (1/1) ... [2021-11-22 23:24:25,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:24" (1/1) ... [2021-11-22 23:24:25,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:24" (1/1) ... [2021-11-22 23:24:25,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:24:25,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:24:25,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:24:25,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:24:25,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:24" (1/1) ... [2021-11-22 23:24:25,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:24:25,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 23:24:25,092 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) [2021-11-22 23:24:25,118 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 [2021-11-22 23:24:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 23:24:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 23:24:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 23:24:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:24:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 23:24:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 23:24:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-22 23:24:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 23:24:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:24:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 23:24:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:24:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:24:25,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:24:25,562 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:24:25,564 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:24:27,426 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:24:27,437 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:24:27,437 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-22 23:24:27,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:24:27 BoogieIcfgContainer [2021-11-22 23:24:27,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:24:27,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 23:24:27,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 23:24:27,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 23:24:27,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:24:22" (1/3) ... [2021-11-22 23:24:27,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e64a312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:24:27, skipping insertion in model container [2021-11-22 23:24:27,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:24" (2/3) ... [2021-11-22 23:24:27,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e64a312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:24:27, skipping insertion in model container [2021-11-22 23:24:27,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:24:27" (3/3) ... [2021-11-22 23:24:27,447 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i [2021-11-22 23:24:27,451 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 23:24:27,451 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 23:24:27,493 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 23:24:27,499 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 [2021-11-22 23:24:27,499 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 23:24:27,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 759 states, 757 states have (on average 1.5046235138705417) internal successors, (1139), 758 states have internal predecessors, (1139), 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) [2021-11-22 23:24:27,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-22 23:24:27,530 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:27,531 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] [2021-11-22 23:24:27,531 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:27,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:27,536 INFO L85 PathProgramCache]: Analyzing trace with hash 288394020, now seen corresponding path program 1 times [2021-11-22 23:24:27,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:27,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101169695] [2021-11-22 23:24:27,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:27,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:28,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:24:28,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:28,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101169695] [2021-11-22 23:24:28,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101169695] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:24:28,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:24:28,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:24:28,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146017993] [2021-11-22 23:24:28,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:28,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:24:28,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:28,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:24:28,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:24:28,077 INFO L87 Difference]: Start difference. First operand has 759 states, 757 states have (on average 1.5046235138705417) internal successors, (1139), 758 states have internal predecessors, (1139), 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 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-11-22 23:24:28,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:28,336 INFO L93 Difference]: Finished difference Result 2236 states and 3368 transitions. [2021-11-22 23:24:28,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:24:28,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2021-11-22 23:24:28,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:28,361 INFO L225 Difference]: With dead ends: 2236 [2021-11-22 23:24:28,361 INFO L226 Difference]: Without dead ends: 1470 [2021-11-22 23:24:28,370 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 [2021-11-22 23:24:28,375 INFO L933 BasicCegarLoop]: 1112 mSDtfsCounter, 1080 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:28,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1080 Valid, 2205 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 23:24:28,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2021-11-22 23:24:28,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1470. [2021-11-22 23:24:28,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 1.4771953710006807) internal successors, (2170), 1469 states have internal predecessors, (2170), 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) [2021-11-22 23:24:28,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 2170 transitions. [2021-11-22 23:24:28,475 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 2170 transitions. Word has length 22 [2021-11-22 23:24:28,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:28,476 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 2170 transitions. [2021-11-22 23:24:28,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-11-22 23:24:28,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 2170 transitions. [2021-11-22 23:24:28,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-22 23:24:28,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:28,479 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] [2021-11-22 23:24:28,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 23:24:28,480 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:28,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:28,481 INFO L85 PathProgramCache]: Analyzing trace with hash -661496389, now seen corresponding path program 1 times [2021-11-22 23:24:28,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:28,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202505385] [2021-11-22 23:24:28,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:28,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:28,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:24:28,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:28,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202505385] [2021-11-22 23:24:28,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202505385] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:24:28,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:24:28,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 23:24:28,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833252066] [2021-11-22 23:24:28,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:28,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:24:28,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:28,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:24:28,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:24:28,625 INFO L87 Difference]: Start difference. First operand 1470 states and 2170 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-11-22 23:24:28,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:28,804 INFO L93 Difference]: Finished difference Result 4384 states and 6481 transitions. [2021-11-22 23:24:28,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:24:28,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 28 [2021-11-22 23:24:28,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:28,820 INFO L225 Difference]: With dead ends: 4384 [2021-11-22 23:24:28,820 INFO L226 Difference]: Without dead ends: 2920 [2021-11-22 23:24:28,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 23:24:28,827 INFO L933 BasicCegarLoop]: 1087 mSDtfsCounter, 1074 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 4330 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:28,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1074 Valid, 4330 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 23:24:28,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2021-11-22 23:24:28,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 2904. [2021-11-22 23:24:28,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2904 states, 2903 states have (on average 1.4784705477092663) internal successors, (4292), 2903 states have internal predecessors, (4292), 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) [2021-11-22 23:24:28,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2904 states to 2904 states and 4292 transitions. [2021-11-22 23:24:28,944 INFO L78 Accepts]: Start accepts. Automaton has 2904 states and 4292 transitions. Word has length 28 [2021-11-22 23:24:28,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:28,944 INFO L470 AbstractCegarLoop]: Abstraction has 2904 states and 4292 transitions. [2021-11-22 23:24:28,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-11-22 23:24:28,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2904 states and 4292 transitions. [2021-11-22 23:24:28,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-22 23:24:28,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:28,951 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 23:24:28,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 23:24:28,952 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:28,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:28,953 INFO L85 PathProgramCache]: Analyzing trace with hash 144599682, now seen corresponding path program 1 times [2021-11-22 23:24:28,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:28,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158526111] [2021-11-22 23:24:28,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:28,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:29,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:24:29,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:29,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158526111] [2021-11-22 23:24:29,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158526111] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:24:29,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:24:29,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:24:29,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473262529] [2021-11-22 23:24:29,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:29,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:24:29,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:29,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:24:29,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:24:29,108 INFO L87 Difference]: Start difference. First operand 2904 states and 4292 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-11-22 23:24:29,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:29,248 INFO L93 Difference]: Finished difference Result 6164 states and 9130 transitions. [2021-11-22 23:24:29,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:24:29,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2021-11-22 23:24:29,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:29,262 INFO L225 Difference]: With dead ends: 6164 [2021-11-22 23:24:29,262 INFO L226 Difference]: Without dead ends: 3272 [2021-11-22 23:24:29,267 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 [2021-11-22 23:24:29,273 INFO L933 BasicCegarLoop]: 1106 mSDtfsCounter, 153 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 2171 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:29,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 2171 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 23:24:29,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3272 states. [2021-11-22 23:24:29,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3272 to 3262. [2021-11-22 23:24:29,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3262 states, 3261 states have (on average 1.483900643974241) internal successors, (4839), 3261 states have internal predecessors, (4839), 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) [2021-11-22 23:24:29,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 4839 transitions. [2021-11-22 23:24:29,379 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 4839 transitions. Word has length 58 [2021-11-22 23:24:29,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:29,379 INFO L470 AbstractCegarLoop]: Abstraction has 3262 states and 4839 transitions. [2021-11-22 23:24:29,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-11-22 23:24:29,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 4839 transitions. [2021-11-22 23:24:29,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-22 23:24:29,387 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:29,387 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-22 23:24:29,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 23:24:29,388 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:29,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:29,389 INFO L85 PathProgramCache]: Analyzing trace with hash 3895068, now seen corresponding path program 1 times [2021-11-22 23:24:29,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:29,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676303678] [2021-11-22 23:24:29,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:29,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:29,600 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:24:29,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:29,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676303678] [2021-11-22 23:24:29,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676303678] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:24:29,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:24:29,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:24:29,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349095498] [2021-11-22 23:24:29,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:29,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:24:29,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:29,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:24:29,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:24:29,603 INFO L87 Difference]: Start difference. First operand 3262 states and 4839 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) 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) [2021-11-22 23:24:29,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:29,746 INFO L93 Difference]: Finished difference Result 6932 states and 10320 transitions. [2021-11-22 23:24:29,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:24:29,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) 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 67 [2021-11-22 23:24:29,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:29,763 INFO L225 Difference]: With dead ends: 6932 [2021-11-22 23:24:29,763 INFO L226 Difference]: Without dead ends: 3682 [2021-11-22 23:24:29,771 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 [2021-11-22 23:24:29,773 INFO L933 BasicCegarLoop]: 1238 mSDtfsCounter, 605 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 1859 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:29,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [605 Valid, 1859 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 23:24:29,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3682 states. [2021-11-22 23:24:29,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3682 to 3672. [2021-11-22 23:24:29,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 3671 states have (on average 1.4867883410514846) internal successors, (5458), 3671 states have internal predecessors, (5458), 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) [2021-11-22 23:24:29,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 5458 transitions. [2021-11-22 23:24:29,920 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 5458 transitions. Word has length 67 [2021-11-22 23:24:29,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:29,922 INFO L470 AbstractCegarLoop]: Abstraction has 3672 states and 5458 transitions. [2021-11-22 23:24:29,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) 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) [2021-11-22 23:24:29,923 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 5458 transitions. [2021-11-22 23:24:29,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-22 23:24:29,930 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:29,930 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-22 23:24:29,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 23:24:29,931 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:29,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:29,932 INFO L85 PathProgramCache]: Analyzing trace with hash -232875038, now seen corresponding path program 1 times [2021-11-22 23:24:29,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:29,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753823413] [2021-11-22 23:24:29,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:29,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:30,104 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-22 23:24:30,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:30,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753823413] [2021-11-22 23:24:30,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753823413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:24:30,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:24:30,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:24:30,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401250164] [2021-11-22 23:24:30,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:30,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:24:30,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:30,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:24:30,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:24:30,109 INFO L87 Difference]: Start difference. First operand 3672 states and 5458 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2021-11-22 23:24:30,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:30,251 INFO L93 Difference]: Finished difference Result 7747 states and 11554 transitions. [2021-11-22 23:24:30,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:24:30,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 84 [2021-11-22 23:24:30,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:30,268 INFO L225 Difference]: With dead ends: 7747 [2021-11-22 23:24:30,268 INFO L226 Difference]: Without dead ends: 4087 [2021-11-22 23:24:30,274 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 [2021-11-22 23:24:30,275 INFO L933 BasicCegarLoop]: 1250 mSDtfsCounter, 291 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 2189 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:30,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 2189 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 23:24:30,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4087 states. [2021-11-22 23:24:30,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4087 to 4082. [2021-11-22 23:24:30,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4082 states, 4081 states have (on average 1.490075961774075) internal successors, (6081), 4081 states have internal predecessors, (6081), 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) [2021-11-22 23:24:30,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4082 states to 4082 states and 6081 transitions. [2021-11-22 23:24:30,393 INFO L78 Accepts]: Start accepts. Automaton has 4082 states and 6081 transitions. Word has length 84 [2021-11-22 23:24:30,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:30,394 INFO L470 AbstractCegarLoop]: Abstraction has 4082 states and 6081 transitions. [2021-11-22 23:24:30,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2021-11-22 23:24:30,395 INFO L276 IsEmpty]: Start isEmpty. Operand 4082 states and 6081 transitions. [2021-11-22 23:24:30,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-22 23:24:30,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:30,402 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 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] [2021-11-22 23:24:30,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 23:24:30,408 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:30,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:30,410 INFO L85 PathProgramCache]: Analyzing trace with hash -71856659, now seen corresponding path program 1 times [2021-11-22 23:24:30,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:30,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486712657] [2021-11-22 23:24:30,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:30,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:30,577 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-22 23:24:30,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:30,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486712657] [2021-11-22 23:24:30,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486712657] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:24:30,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:24:30,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 23:24:30,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594652959] [2021-11-22 23:24:30,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:30,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 23:24:30,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:30,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 23:24:30,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 23:24:30,580 INFO L87 Difference]: Start difference. First operand 4082 states and 6081 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2021-11-22 23:24:30,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:30,949 INFO L93 Difference]: Finished difference Result 19680 states and 29392 transitions. [2021-11-22 23:24:30,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:24:30,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 103 [2021-11-22 23:24:30,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:31,012 INFO L225 Difference]: With dead ends: 19680 [2021-11-22 23:24:31,013 INFO L226 Difference]: Without dead ends: 15610 [2021-11-22 23:24:31,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:24:31,026 INFO L933 BasicCegarLoop]: 2007 mSDtfsCounter, 3165 mSDsluCounter, 3087 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3165 SdHoareTripleChecker+Valid, 5094 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:31,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3165 Valid, 5094 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 23:24:31,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15610 states. [2021-11-22 23:24:31,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15610 to 4098. [2021-11-22 23:24:31,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.488162069807176) internal successors, (6097), 4097 states have internal predecessors, (6097), 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) [2021-11-22 23:24:31,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 6097 transitions. [2021-11-22 23:24:31,264 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 6097 transitions. Word has length 103 [2021-11-22 23:24:31,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:31,265 INFO L470 AbstractCegarLoop]: Abstraction has 4098 states and 6097 transitions. [2021-11-22 23:24:31,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2021-11-22 23:24:31,265 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 6097 transitions. [2021-11-22 23:24:31,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-22 23:24:31,271 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:31,272 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 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] [2021-11-22 23:24:31,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 23:24:31,272 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:31,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:31,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1686279133, now seen corresponding path program 1 times [2021-11-22 23:24:31,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:31,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903035850] [2021-11-22 23:24:31,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:31,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:31,488 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-22 23:24:31,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:31,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903035850] [2021-11-22 23:24:31,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903035850] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:24:31,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651064787] [2021-11-22 23:24:31,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:31,489 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:24:31,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 23:24:31,491 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:24:31,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 23:24:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:32,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 2592 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 23:24:32,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:32,248 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-22 23:24:32,249 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 23:24:32,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651064787] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:24:32,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 23:24:32,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-22 23:24:32,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358563046] [2021-11-22 23:24:32,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:32,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:24:32,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:32,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:24:32,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-22 23:24:32,252 INFO L87 Difference]: Start difference. First operand 4098 states and 6097 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2021-11-22 23:24:32,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:32,535 INFO L93 Difference]: Finished difference Result 10608 states and 15766 transitions. [2021-11-22 23:24:32,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:24:32,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-11-22 23:24:32,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:32,552 INFO L225 Difference]: With dead ends: 10608 [2021-11-22 23:24:32,552 INFO L226 Difference]: Without dead ends: 6522 [2021-11-22 23:24:32,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-22 23:24:32,560 INFO L933 BasicCegarLoop]: 1720 mSDtfsCounter, 1553 mSDsluCounter, 3584 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 5304 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:32,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1553 Valid, 5304 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 23:24:32,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6522 states. [2021-11-22 23:24:32,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6522 to 4490. [2021-11-22 23:24:32,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4490 states, 4489 states have (on average 1.4865226108264646) internal successors, (6673), 4489 states have internal predecessors, (6673), 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) [2021-11-22 23:24:32,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4490 states to 4490 states and 6673 transitions. [2021-11-22 23:24:32,759 INFO L78 Accepts]: Start accepts. Automaton has 4490 states and 6673 transitions. Word has length 106 [2021-11-22 23:24:32,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:32,759 INFO L470 AbstractCegarLoop]: Abstraction has 4490 states and 6673 transitions. [2021-11-22 23:24:32,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2021-11-22 23:24:32,760 INFO L276 IsEmpty]: Start isEmpty. Operand 4490 states and 6673 transitions. [2021-11-22 23:24:32,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-22 23:24:32,767 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:32,767 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 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] [2021-11-22 23:24:32,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 23:24:32,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:24:32,988 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:32,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:32,989 INFO L85 PathProgramCache]: Analyzing trace with hash -350301716, now seen corresponding path program 1 times [2021-11-22 23:24:32,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:32,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992744743] [2021-11-22 23:24:32,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:32,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:33,302 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-22 23:24:33,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:33,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992744743] [2021-11-22 23:24:33,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992744743] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:24:33,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087935355] [2021-11-22 23:24:33,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:33,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:24:33,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 23:24:33,304 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:24:33,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-22 23:24:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:33,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 3057 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 23:24:33,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:34,249 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-22 23:24:34,249 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 23:24:34,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087935355] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:24:34,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 23:24:34,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-11-22 23:24:34,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094670554] [2021-11-22 23:24:34,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:34,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 23:24:34,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:34,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 23:24:34,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:24:34,252 INFO L87 Difference]: Start difference. First operand 4490 states and 6673 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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) [2021-11-22 23:24:34,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:34,473 INFO L93 Difference]: Finished difference Result 6624 states and 9830 transitions. [2021-11-22 23:24:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 23:24:34,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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 139 [2021-11-22 23:24:34,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:34,488 INFO L225 Difference]: With dead ends: 6624 [2021-11-22 23:24:34,488 INFO L226 Difference]: Without dead ends: 6616 [2021-11-22 23:24:34,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:24:34,492 INFO L933 BasicCegarLoop]: 1712 mSDtfsCounter, 1643 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1643 SdHoareTripleChecker+Valid, 2346 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:34,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1643 Valid, 2346 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 23:24:34,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6616 states. [2021-11-22 23:24:34,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6616 to 5506. [2021-11-22 23:24:34,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5506 states, 5505 states have (on average 1.48519527702089) internal successors, (8176), 5505 states have internal predecessors, (8176), 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) [2021-11-22 23:24:34,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5506 states to 5506 states and 8176 transitions. [2021-11-22 23:24:34,681 INFO L78 Accepts]: Start accepts. Automaton has 5506 states and 8176 transitions. Word has length 139 [2021-11-22 23:24:34,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:34,682 INFO L470 AbstractCegarLoop]: Abstraction has 5506 states and 8176 transitions. [2021-11-22 23:24:34,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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) [2021-11-22 23:24:34,682 INFO L276 IsEmpty]: Start isEmpty. Operand 5506 states and 8176 transitions. [2021-11-22 23:24:34,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-22 23:24:34,690 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:34,691 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 2, 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] [2021-11-22 23:24:34,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-22 23:24:34,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-22 23:24:34,912 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:34,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:34,912 INFO L85 PathProgramCache]: Analyzing trace with hash -2089748475, now seen corresponding path program 1 times [2021-11-22 23:24:34,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:34,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75715064] [2021-11-22 23:24:34,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:34,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:35,024 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-22 23:24:35,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:35,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75715064] [2021-11-22 23:24:35,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75715064] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:24:35,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:24:35,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:24:35,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773511796] [2021-11-22 23:24:35,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:35,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:24:35,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:35,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:24:35,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:24:35,027 INFO L87 Difference]: Start difference. First operand 5506 states and 8176 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2021-11-22 23:24:35,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:35,150 INFO L93 Difference]: Finished difference Result 8373 states and 12436 transitions. [2021-11-22 23:24:35,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:24:35,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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 145 [2021-11-22 23:24:35,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:35,157 INFO L225 Difference]: With dead ends: 8373 [2021-11-22 23:24:35,157 INFO L226 Difference]: Without dead ends: 2878 [2021-11-22 23:24:35,165 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 [2021-11-22 23:24:35,168 INFO L933 BasicCegarLoop]: 1102 mSDtfsCounter, 5 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:35,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 2199 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 23:24:35,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2021-11-22 23:24:35,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 2872. [2021-11-22 23:24:35,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2872 states, 2871 states have (on average 1.4855451062347613) internal successors, (4265), 2871 states have internal predecessors, (4265), 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) [2021-11-22 23:24:35,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2872 states to 2872 states and 4265 transitions. [2021-11-22 23:24:35,298 INFO L78 Accepts]: Start accepts. Automaton has 2872 states and 4265 transitions. Word has length 145 [2021-11-22 23:24:35,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:35,298 INFO L470 AbstractCegarLoop]: Abstraction has 2872 states and 4265 transitions. [2021-11-22 23:24:35,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2021-11-22 23:24:35,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2872 states and 4265 transitions. [2021-11-22 23:24:35,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-22 23:24:35,303 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:35,303 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 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] [2021-11-22 23:24:35,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-22 23:24:35,304 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:35,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:35,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1343385219, now seen corresponding path program 1 times [2021-11-22 23:24:35,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:35,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929916945] [2021-11-22 23:24:35,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:35,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:35,549 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 24 proven. 19 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-22 23:24:35,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:35,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929916945] [2021-11-22 23:24:35,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929916945] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:24:35,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893043630] [2021-11-22 23:24:35,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:35,550 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:24:35,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 23:24:35,552 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:24:35,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-22 23:24:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:36,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 3131 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 23:24:36,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:36,439 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-22 23:24:36,439 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 23:24:36,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893043630] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:24:36,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 23:24:36,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-11-22 23:24:36,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751808215] [2021-11-22 23:24:36,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:36,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:24:36,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:36,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:24:36,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-11-22 23:24:36,441 INFO L87 Difference]: Start difference. First operand 2872 states and 4265 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2021-11-22 23:24:36,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:36,547 INFO L93 Difference]: Finished difference Result 5619 states and 8351 transitions. [2021-11-22 23:24:36,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:24:36,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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 145 [2021-11-22 23:24:36,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:36,555 INFO L225 Difference]: With dead ends: 5619 [2021-11-22 23:24:36,555 INFO L226 Difference]: Without dead ends: 2669 [2021-11-22 23:24:36,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-11-22 23:24:36,560 INFO L933 BasicCegarLoop]: 1231 mSDtfsCounter, 973 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:36,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [973 Valid, 1390 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 23:24:36,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2021-11-22 23:24:36,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 2669. [2021-11-22 23:24:36,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2669 states, 2668 states have (on average 1.4782608695652173) internal successors, (3944), 2668 states have internal predecessors, (3944), 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) [2021-11-22 23:24:36,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 3944 transitions. [2021-11-22 23:24:36,647 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 3944 transitions. Word has length 145 [2021-11-22 23:24:36,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:36,647 INFO L470 AbstractCegarLoop]: Abstraction has 2669 states and 3944 transitions. [2021-11-22 23:24:36,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2021-11-22 23:24:36,648 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 3944 transitions. [2021-11-22 23:24:36,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-22 23:24:36,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:36,653 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 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] [2021-11-22 23:24:36,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-22 23:24:36,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:24:36,872 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:36,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:36,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1384877280, now seen corresponding path program 1 times [2021-11-22 23:24:36,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:36,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515360183] [2021-11-22 23:24:36,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:36,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:37,076 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-22 23:24:37,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:37,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515360183] [2021-11-22 23:24:37,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515360183] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:24:37,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:24:37,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 23:24:37,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714183817] [2021-11-22 23:24:37,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:37,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:24:37,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:37,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:24:37,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:24:37,079 INFO L87 Difference]: Start difference. First operand 2669 states and 3944 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 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) [2021-11-22 23:24:37,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:37,263 INFO L93 Difference]: Finished difference Result 6687 states and 9896 transitions. [2021-11-22 23:24:37,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:24:37,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 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 170 [2021-11-22 23:24:37,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:37,273 INFO L225 Difference]: With dead ends: 6687 [2021-11-22 23:24:37,273 INFO L226 Difference]: Without dead ends: 4131 [2021-11-22 23:24:37,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 23:24:37,278 INFO L933 BasicCegarLoop]: 1846 mSDtfsCounter, 2196 mSDsluCounter, 3375 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 5221 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:37,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2196 Valid, 5221 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 23:24:37,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4131 states. [2021-11-22 23:24:37,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4131 to 2697. [2021-11-22 23:24:37,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2697 states, 2696 states have (on average 1.478486646884273) internal successors, (3986), 2696 states have internal predecessors, (3986), 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) [2021-11-22 23:24:37,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2697 states to 2697 states and 3986 transitions. [2021-11-22 23:24:37,382 INFO L78 Accepts]: Start accepts. Automaton has 2697 states and 3986 transitions. Word has length 170 [2021-11-22 23:24:37,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:37,382 INFO L470 AbstractCegarLoop]: Abstraction has 2697 states and 3986 transitions. [2021-11-22 23:24:37,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 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) [2021-11-22 23:24:37,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2697 states and 3986 transitions. [2021-11-22 23:24:37,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-22 23:24:37,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:37,388 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 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] [2021-11-22 23:24:37,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-22 23:24:37,389 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:37,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:37,389 INFO L85 PathProgramCache]: Analyzing trace with hash -2018282213, now seen corresponding path program 1 times [2021-11-22 23:24:37,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:37,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289667131] [2021-11-22 23:24:37,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:37,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:37,713 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-22 23:24:37,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:37,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289667131] [2021-11-22 23:24:37,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289667131] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:24:37,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:24:37,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 23:24:37,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660366316] [2021-11-22 23:24:37,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:37,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 23:24:37,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:37,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 23:24:37,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-22 23:24:37,716 INFO L87 Difference]: Start difference. First operand 2697 states and 3986 transitions. Second operand has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 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) [2021-11-22 23:24:38,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:38,375 INFO L93 Difference]: Finished difference Result 11832 states and 17460 transitions. [2021-11-22 23:24:38,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:24:38,376 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 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 172 [2021-11-22 23:24:38,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:38,397 INFO L225 Difference]: With dead ends: 11832 [2021-11-22 23:24:38,397 INFO L226 Difference]: Without dead ends: 9248 [2021-11-22 23:24:38,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-22 23:24:38,405 INFO L933 BasicCegarLoop]: 1339 mSDtfsCounter, 5459 mSDsluCounter, 6816 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5459 SdHoareTripleChecker+Valid, 8155 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:38,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5459 Valid, 8155 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 23:24:38,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9248 states. [2021-11-22 23:24:38,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9248 to 2712. [2021-11-22 23:24:38,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2712 states, 2711 states have (on average 1.4758391737366285) internal successors, (4001), 2711 states have internal predecessors, (4001), 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) [2021-11-22 23:24:38,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2712 states to 2712 states and 4001 transitions. [2021-11-22 23:24:38,564 INFO L78 Accepts]: Start accepts. Automaton has 2712 states and 4001 transitions. Word has length 172 [2021-11-22 23:24:38,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:38,565 INFO L470 AbstractCegarLoop]: Abstraction has 2712 states and 4001 transitions. [2021-11-22 23:24:38,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 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) [2021-11-22 23:24:38,565 INFO L276 IsEmpty]: Start isEmpty. Operand 2712 states and 4001 transitions. [2021-11-22 23:24:38,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-22 23:24:38,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:38,570 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 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] [2021-11-22 23:24:38,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-22 23:24:38,571 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:38,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:38,572 INFO L85 PathProgramCache]: Analyzing trace with hash -329843369, now seen corresponding path program 1 times [2021-11-22 23:24:38,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:38,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182849444] [2021-11-22 23:24:38,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:38,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:38,749 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-22 23:24:38,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:38,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182849444] [2021-11-22 23:24:38,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182849444] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:24:38,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:24:38,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 23:24:38,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460674040] [2021-11-22 23:24:38,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:38,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:24:38,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:38,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:24:38,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:24:38,752 INFO L87 Difference]: Start difference. First operand 2712 states and 4001 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 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) [2021-11-22 23:24:39,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:39,281 INFO L93 Difference]: Finished difference Result 12438 states and 18354 transitions. [2021-11-22 23:24:39,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:24:39,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 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 174 [2021-11-22 23:24:39,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:39,304 INFO L225 Difference]: With dead ends: 12438 [2021-11-22 23:24:39,305 INFO L226 Difference]: Without dead ends: 9839 [2021-11-22 23:24:39,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 23:24:39,314 INFO L933 BasicCegarLoop]: 1643 mSDtfsCounter, 3869 mSDsluCounter, 4381 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3869 SdHoareTripleChecker+Valid, 6024 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:39,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3869 Valid, 6024 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 23:24:39,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9839 states. [2021-11-22 23:24:39,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9839 to 2721. [2021-11-22 23:24:39,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2721 states, 2720 states have (on average 1.474264705882353) internal successors, (4010), 2720 states have internal predecessors, (4010), 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) [2021-11-22 23:24:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 4010 transitions. [2021-11-22 23:24:39,477 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 4010 transitions. Word has length 174 [2021-11-22 23:24:39,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:39,477 INFO L470 AbstractCegarLoop]: Abstraction has 2721 states and 4010 transitions. [2021-11-22 23:24:39,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 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) [2021-11-22 23:24:39,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 4010 transitions. [2021-11-22 23:24:39,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-22 23:24:39,483 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:39,483 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 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] [2021-11-22 23:24:39,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-22 23:24:39,483 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:39,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:39,484 INFO L85 PathProgramCache]: Analyzing trace with hash -643864333, now seen corresponding path program 1 times [2021-11-22 23:24:39,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:39,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147745907] [2021-11-22 23:24:39,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:39,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:39,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:39,661 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-22 23:24:39,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:39,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147745907] [2021-11-22 23:24:39,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147745907] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:24:39,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:24:39,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 23:24:39,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390392359] [2021-11-22 23:24:39,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:39,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:24:39,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:39,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:24:39,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:24:39,697 INFO L87 Difference]: Start difference. First operand 2721 states and 4010 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 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) [2021-11-22 23:24:40,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:40,052 INFO L93 Difference]: Finished difference Result 9128 states and 13464 transitions. [2021-11-22 23:24:40,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:24:40,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 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 176 [2021-11-22 23:24:40,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:40,075 INFO L225 Difference]: With dead ends: 9128 [2021-11-22 23:24:40,075 INFO L226 Difference]: Without dead ends: 6520 [2021-11-22 23:24:40,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 23:24:40,085 INFO L933 BasicCegarLoop]: 1852 mSDtfsCounter, 1799 mSDsluCounter, 4397 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1799 SdHoareTripleChecker+Valid, 6249 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:40,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1799 Valid, 6249 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 23:24:40,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6520 states. [2021-11-22 23:24:40,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6520 to 2730. [2021-11-22 23:24:40,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2730 states, 2729 states have (on average 1.4727006229388053) internal successors, (4019), 2729 states have internal predecessors, (4019), 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) [2021-11-22 23:24:40,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2730 states to 2730 states and 4019 transitions. [2021-11-22 23:24:40,245 INFO L78 Accepts]: Start accepts. Automaton has 2730 states and 4019 transitions. Word has length 176 [2021-11-22 23:24:40,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:40,246 INFO L470 AbstractCegarLoop]: Abstraction has 2730 states and 4019 transitions. [2021-11-22 23:24:40,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 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) [2021-11-22 23:24:40,246 INFO L276 IsEmpty]: Start isEmpty. Operand 2730 states and 4019 transitions. [2021-11-22 23:24:40,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-22 23:24:40,251 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:40,251 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 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] [2021-11-22 23:24:40,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-22 23:24:40,252 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:40,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:40,253 INFO L85 PathProgramCache]: Analyzing trace with hash 880418703, now seen corresponding path program 1 times [2021-11-22 23:24:40,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:40,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837018231] [2021-11-22 23:24:40,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:40,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:40,446 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-22 23:24:40,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:40,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837018231] [2021-11-22 23:24:40,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837018231] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:24:40,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:24:40,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 23:24:40,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454398107] [2021-11-22 23:24:40,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:40,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 23:24:40,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:40,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 23:24:40,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-22 23:24:40,449 INFO L87 Difference]: Start difference. First operand 2730 states and 4019 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 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) [2021-11-22 23:24:40,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:40,847 INFO L93 Difference]: Finished difference Result 7915 states and 11666 transitions. [2021-11-22 23:24:40,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:24:40,848 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 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 178 [2021-11-22 23:24:40,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:40,858 INFO L225 Difference]: With dead ends: 7915 [2021-11-22 23:24:40,859 INFO L226 Difference]: Without dead ends: 5298 [2021-11-22 23:24:40,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-22 23:24:40,865 INFO L933 BasicCegarLoop]: 1340 mSDtfsCounter, 1492 mSDsluCounter, 4993 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 6333 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:40,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1492 Valid, 6333 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 23:24:40,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5298 states. [2021-11-22 23:24:41,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5298 to 2742. [2021-11-22 23:24:41,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2742 states, 2741 states have (on average 1.4706311565122219) internal successors, (4031), 2741 states have internal predecessors, (4031), 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) [2021-11-22 23:24:41,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2742 states to 2742 states and 4031 transitions. [2021-11-22 23:24:41,026 INFO L78 Accepts]: Start accepts. Automaton has 2742 states and 4031 transitions. Word has length 178 [2021-11-22 23:24:41,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:41,026 INFO L470 AbstractCegarLoop]: Abstraction has 2742 states and 4031 transitions. [2021-11-22 23:24:41,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 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) [2021-11-22 23:24:41,027 INFO L276 IsEmpty]: Start isEmpty. Operand 2742 states and 4031 transitions. [2021-11-22 23:24:41,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-22 23:24:41,031 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:41,032 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 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] [2021-11-22 23:24:41,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-22 23:24:41,032 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:41,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:41,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1557044949, now seen corresponding path program 1 times [2021-11-22 23:24:41,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:41,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4740182] [2021-11-22 23:24:41,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:41,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:41,231 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-22 23:24:41,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:41,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4740182] [2021-11-22 23:24:41,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4740182] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:24:41,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:24:41,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 23:24:41,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33310299] [2021-11-22 23:24:41,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:41,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:24:41,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:41,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:24:41,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:24:41,234 INFO L87 Difference]: Start difference. First operand 2742 states and 4031 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 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) [2021-11-22 23:24:41,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:41,859 INFO L93 Difference]: Finished difference Result 9488 states and 13980 transitions. [2021-11-22 23:24:41,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:24:41,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 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 180 [2021-11-22 23:24:41,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:41,872 INFO L225 Difference]: With dead ends: 9488 [2021-11-22 23:24:41,872 INFO L226 Difference]: Without dead ends: 6859 [2021-11-22 23:24:41,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 23:24:41,880 INFO L933 BasicCegarLoop]: 1776 mSDtfsCounter, 2310 mSDsluCounter, 4847 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2310 SdHoareTripleChecker+Valid, 6623 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:41,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2310 Valid, 6623 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 23:24:41,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6859 states. [2021-11-22 23:24:42,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6859 to 2751. [2021-11-22 23:24:42,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2751 states, 2750 states have (on average 1.469090909090909) internal successors, (4040), 2750 states have internal predecessors, (4040), 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) [2021-11-22 23:24:42,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2751 states to 2751 states and 4040 transitions. [2021-11-22 23:24:42,068 INFO L78 Accepts]: Start accepts. Automaton has 2751 states and 4040 transitions. Word has length 180 [2021-11-22 23:24:42,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:42,068 INFO L470 AbstractCegarLoop]: Abstraction has 2751 states and 4040 transitions. [2021-11-22 23:24:42,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 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) [2021-11-22 23:24:42,069 INFO L276 IsEmpty]: Start isEmpty. Operand 2751 states and 4040 transitions. [2021-11-22 23:24:42,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-22 23:24:42,073 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:42,074 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 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] [2021-11-22 23:24:42,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-22 23:24:42,074 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:42,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:42,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1727752817, now seen corresponding path program 1 times [2021-11-22 23:24:42,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:42,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52412606] [2021-11-22 23:24:42,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:42,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:42,301 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-22 23:24:42,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:42,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52412606] [2021-11-22 23:24:42,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52412606] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:24:42,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:24:42,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:24:42,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927622424] [2021-11-22 23:24:42,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:42,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:24:42,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:42,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:24:42,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:24:42,304 INFO L87 Difference]: Start difference. First operand 2751 states and 4040 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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) [2021-11-22 23:24:42,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:42,496 INFO L93 Difference]: Finished difference Result 5493 states and 8070 transitions. [2021-11-22 23:24:42,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:24:42,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 182 [2021-11-22 23:24:42,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:42,502 INFO L225 Difference]: With dead ends: 5493 [2021-11-22 23:24:42,502 INFO L226 Difference]: Without dead ends: 2752 [2021-11-22 23:24:42,505 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 [2021-11-22 23:24:42,506 INFO L933 BasicCegarLoop]: 1099 mSDtfsCounter, 0 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2196 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:42,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2196 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 23:24:42,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2021-11-22 23:24:42,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2752. [2021-11-22 23:24:42,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2752 states, 2751 states have (on average 1.4689203925845147) internal successors, (4041), 2751 states have internal predecessors, (4041), 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) [2021-11-22 23:24:42,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 4041 transitions. [2021-11-22 23:24:42,660 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 4041 transitions. Word has length 182 [2021-11-22 23:24:42,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:42,660 INFO L470 AbstractCegarLoop]: Abstraction has 2752 states and 4041 transitions. [2021-11-22 23:24:42,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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) [2021-11-22 23:24:42,661 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 4041 transitions. [2021-11-22 23:24:42,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-22 23:24:42,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:42,666 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 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] [2021-11-22 23:24:42,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-22 23:24:42,666 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:42,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:42,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1082657669, now seen corresponding path program 1 times [2021-11-22 23:24:42,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:42,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809079606] [2021-11-22 23:24:42,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:42,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:42,932 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-22 23:24:42,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:42,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809079606] [2021-11-22 23:24:42,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809079606] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:24:42,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998737368] [2021-11-22 23:24:42,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:42,933 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:24:42,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 23:24:42,936 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:24:42,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-22 23:24:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:43,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 3473 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:24:43,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:43,989 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-22 23:24:43,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 23:24:43,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998737368] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:24:43,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 23:24:43,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-22 23:24:43,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108930293] [2021-11-22 23:24:43,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:43,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:24:43,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:43,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:24:43,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-22 23:24:43,991 INFO L87 Difference]: Start difference. First operand 2752 states and 4041 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 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) [2021-11-22 23:24:44,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:44,510 INFO L93 Difference]: Finished difference Result 8294 states and 12191 transitions. [2021-11-22 23:24:44,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:24:44,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 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 183 [2021-11-22 23:24:44,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:44,520 INFO L225 Difference]: With dead ends: 8294 [2021-11-22 23:24:44,520 INFO L226 Difference]: Without dead ends: 5656 [2021-11-22 23:24:44,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-22 23:24:44,525 INFO L933 BasicCegarLoop]: 1846 mSDtfsCounter, 2899 mSDsluCounter, 4779 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2899 SdHoareTripleChecker+Valid, 6625 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:44,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2899 Valid, 6625 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 23:24:44,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5656 states. [2021-11-22 23:24:44,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5656 to 2752. [2021-11-22 23:24:44,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2752 states, 2751 states have (on average 1.4689203925845147) internal successors, (4041), 2751 states have internal predecessors, (4041), 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) [2021-11-22 23:24:44,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 4041 transitions. [2021-11-22 23:24:44,723 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 4041 transitions. Word has length 183 [2021-11-22 23:24:44,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:44,723 INFO L470 AbstractCegarLoop]: Abstraction has 2752 states and 4041 transitions. [2021-11-22 23:24:44,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 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) [2021-11-22 23:24:44,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 4041 transitions. [2021-11-22 23:24:44,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-11-22 23:24:44,729 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:44,729 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 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] [2021-11-22 23:24:44,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-22 23:24:44,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-22 23:24:44,956 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:44,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:44,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1355675969, now seen corresponding path program 1 times [2021-11-22 23:24:44,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:44,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532592961] [2021-11-22 23:24:44,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:44,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:45,196 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-22 23:24:45,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:45,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532592961] [2021-11-22 23:24:45,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532592961] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:24:45,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867542883] [2021-11-22 23:24:45,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:45,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:24:45,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 23:24:45,198 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:24:45,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-22 23:24:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:45,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 3499 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-22 23:24:45,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:46,261 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-22 23:24:46,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:24:46,529 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-22 23:24:46,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867542883] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-22 23:24:46,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-22 23:24:46,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 7 [2021-11-22 23:24:46,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742491968] [2021-11-22 23:24:46,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:46,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:24:46,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:46,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:24:46,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-22 23:24:46,532 INFO L87 Difference]: Start difference. First operand 2752 states and 4041 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2021-11-22 23:24:46,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:46,759 INFO L93 Difference]: Finished difference Result 5510 states and 8092 transitions. [2021-11-22 23:24:46,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:24:46,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 185 [2021-11-22 23:24:46,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:46,764 INFO L225 Difference]: With dead ends: 5510 [2021-11-22 23:24:46,764 INFO L226 Difference]: Without dead ends: 2872 [2021-11-22 23:24:46,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-22 23:24:46,769 INFO L933 BasicCegarLoop]: 1266 mSDtfsCounter, 1070 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 1461 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 [2021-11-22 23:24:46,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1070 Valid, 1461 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 23:24:46,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2021-11-22 23:24:46,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 2752. [2021-11-22 23:24:46,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2752 states, 2751 states have (on average 1.4678298800436205) internal successors, (4038), 2751 states have internal predecessors, (4038), 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) [2021-11-22 23:24:46,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 4038 transitions. [2021-11-22 23:24:46,948 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 4038 transitions. Word has length 185 [2021-11-22 23:24:46,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:46,948 INFO L470 AbstractCegarLoop]: Abstraction has 2752 states and 4038 transitions. [2021-11-22 23:24:46,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2021-11-22 23:24:46,949 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 4038 transitions. [2021-11-22 23:24:46,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-22 23:24:46,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:46,953 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 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] [2021-11-22 23:24:46,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-22 23:24:47,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:24:47,180 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:47,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:47,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1522022202, now seen corresponding path program 1 times [2021-11-22 23:24:47,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:47,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681338103] [2021-11-22 23:24:47,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:47,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:47,479 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-22 23:24:47,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:47,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681338103] [2021-11-22 23:24:47,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681338103] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:24:47,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909995310] [2021-11-22 23:24:47,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:47,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:24:47,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 23:24:47,482 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:24:47,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-22 23:24:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:48,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 3532 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-22 23:24:48,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:48,716 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-22 23:24:48,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 23:24:48,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909995310] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:24:48,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 23:24:48,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2021-11-22 23:24:48,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266980693] [2021-11-22 23:24:48,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:24:48,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 23:24:48,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:48,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 23:24:48,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-11-22 23:24:48,719 INFO L87 Difference]: Start difference. First operand 2752 states and 4038 transitions. Second operand has 10 states, 10 states have (on average 17.2) internal successors, (172), 10 states have internal predecessors, (172), 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) [2021-11-22 23:24:50,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:50,330 INFO L93 Difference]: Finished difference Result 10277 states and 15130 transitions. [2021-11-22 23:24:50,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:24:50,331 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.2) internal successors, (172), 10 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 187 [2021-11-22 23:24:50,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:50,342 INFO L225 Difference]: With dead ends: 10277 [2021-11-22 23:24:50,343 INFO L226 Difference]: Without dead ends: 7639 [2021-11-22 23:24:50,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2021-11-22 23:24:50,350 INFO L933 BasicCegarLoop]: 2995 mSDtfsCounter, 10342 mSDsluCounter, 13828 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10342 SdHoareTripleChecker+Valid, 16823 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:50,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10342 Valid, 16823 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-22 23:24:50,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7639 states. [2021-11-22 23:24:50,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7639 to 2764. [2021-11-22 23:24:50,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2764 states, 2763 states have (on average 1.4643503438291712) internal successors, (4046), 2763 states have internal predecessors, (4046), 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) [2021-11-22 23:24:50,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 4046 transitions. [2021-11-22 23:24:50,580 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 4046 transitions. Word has length 187 [2021-11-22 23:24:50,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:50,580 INFO L470 AbstractCegarLoop]: Abstraction has 2764 states and 4046 transitions. [2021-11-22 23:24:50,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.2) internal successors, (172), 10 states have internal predecessors, (172), 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) [2021-11-22 23:24:50,581 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 4046 transitions. [2021-11-22 23:24:50,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-22 23:24:50,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:50,585 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 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] [2021-11-22 23:24:50,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-22 23:24:50,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:24:50,812 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:50,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:50,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1956047363, now seen corresponding path program 1 times [2021-11-22 23:24:50,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:50,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868242988] [2021-11-22 23:24:50,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:50,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:51,175 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-22 23:24:51,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:51,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868242988] [2021-11-22 23:24:51,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868242988] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:24:51,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367719661] [2021-11-22 23:24:51,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:51,177 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:24:51,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 23:24:51,180 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:24:51,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-22 23:24:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:52,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 3715 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 23:24:52,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:52,329 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-22 23:24:52,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:24:52,593 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-22 23:24:52,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367719661] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:24:52,594 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:24:52,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-22 23:24:52,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909716254] [2021-11-22 23:24:52,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:24:52,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 23:24:52,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:24:52,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 23:24:52,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-22 23:24:52,596 INFO L87 Difference]: Start difference. First operand 2764 states and 4046 transitions. Second operand has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 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) [2021-11-22 23:24:52,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:24:52,799 INFO L93 Difference]: Finished difference Result 5520 states and 8085 transitions. [2021-11-22 23:24:52,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:24:52,799 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 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 191 [2021-11-22 23:24:52,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:24:52,803 INFO L225 Difference]: With dead ends: 5520 [2021-11-22 23:24:52,803 INFO L226 Difference]: Without dead ends: 2767 [2021-11-22 23:24:52,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2021-11-22 23:24:52,806 INFO L933 BasicCegarLoop]: 1098 mSDtfsCounter, 1087 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 2203 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 23:24:52,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1087 Valid, 2203 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 23:24:52,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2021-11-22 23:24:53,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 2767. [2021-11-22 23:24:53,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2767 states, 2766 states have (on average 1.4638467100506145) internal successors, (4049), 2766 states have internal predecessors, (4049), 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) [2021-11-22 23:24:53,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2767 states to 2767 states and 4049 transitions. [2021-11-22 23:24:53,055 INFO L78 Accepts]: Start accepts. Automaton has 2767 states and 4049 transitions. Word has length 191 [2021-11-22 23:24:53,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:24:53,055 INFO L470 AbstractCegarLoop]: Abstraction has 2767 states and 4049 transitions. [2021-11-22 23:24:53,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 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) [2021-11-22 23:24:53,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2767 states and 4049 transitions. [2021-11-22 23:24:53,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-22 23:24:53,060 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:24:53,060 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 3, 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] [2021-11-22 23:24:53,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-22 23:24:53,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:24:53,275 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:24:53,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:53,275 INFO L85 PathProgramCache]: Analyzing trace with hash 497763207, now seen corresponding path program 2 times [2021-11-22 23:24:53,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:24:53,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138272270] [2021-11-22 23:24:53,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:24:53,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:58,695 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 17 proven. 45 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:24:58,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:24:58,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138272270] [2021-11-22 23:24:58,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138272270] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:24:58,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730877671] [2021-11-22 23:24:58,696 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 23:24:58,696 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:24:58,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 23:24:58,697 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:24:58,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-22 23:25:01,622 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 23:25:01,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:25:01,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 3760 conjuncts, 383 conjunts are in the unsatisfiable core [2021-11-22 23:25:01,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:02,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 23:25:02,932 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-22 23:25:02,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-22 23:25:03,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-22 23:25:03,350 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-22 23:25:03,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-22 23:25:03,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 23:25:03,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 27 [2021-11-22 23:25:03,566 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-22 23:25:03,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-22 23:25:03,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 23:25:03,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 27 [2021-11-22 23:25:03,808 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 23:25:03,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-22 23:25:04,255 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-22 23:25:04,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 123 treesize of output 121 [2021-11-22 23:25:04,275 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-22 23:25:04,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 106 [2021-11-22 23:25:04,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 114 [2021-11-22 23:25:04,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 23:25:04,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 115 [2021-11-22 23:25:04,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 129 [2021-11-22 23:25:04,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 23:25:04,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 23:25:04,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 23:25:04,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 129 [2021-11-22 23:25:04,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 140 [2021-11-22 23:25:04,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 142 [2021-11-22 23:25:04,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-22 23:25:04,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-22 23:25:04,713 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-22 23:25:04,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 83 treesize of output 73 [2021-11-22 23:25:04,731 INFO L354 Elim1Store]: treesize reduction 47, result has 21.7 percent of original size [2021-11-22 23:25:04,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 124 treesize of output 123 [2021-11-22 23:25:07,437 INFO L354 Elim1Store]: treesize reduction 59, result has 13.2 percent of original size [2021-11-22 23:25:07,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 163 treesize of output 105 [2021-11-22 23:25:07,453 INFO L354 Elim1Store]: treesize reduction 45, result has 16.7 percent of original size [2021-11-22 23:25:07,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 98 treesize of output 94 [2021-11-22 23:25:07,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 23:25:07,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 23:25:07,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 61 [2021-11-22 23:25:07,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 23:25:07,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-22 23:25:08,120 INFO L354 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2021-11-22 23:25:08,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 104 treesize of output 100 [2021-11-22 23:25:08,141 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-22 23:25:08,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 92 treesize of output 95 [2021-11-22 23:25:08,197 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-22 23:25:08,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 165 treesize of output 118 [2021-11-22 23:25:08,218 INFO L354 Elim1Store]: treesize reduction 100, result has 14.5 percent of original size [2021-11-22 23:25:08,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 149 treesize of output 146 [2021-11-22 23:25:09,134 INFO L354 Elim1Store]: treesize reduction 149, result has 4.5 percent of original size [2021-11-22 23:25:09,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 169 treesize of output 137 [2021-11-22 23:25:09,153 INFO L354 Elim1Store]: treesize reduction 113, result has 5.8 percent of original size [2021-11-22 23:25:09,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 122 treesize of output 51 [2021-11-22 23:25:09,334 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 38 proven. 24 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:25:09,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:25:09,695 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3324 (Array Int Int)) (v_ArrVal_3325 (Array Int Int))) (< 0 (mod (let ((.cse5 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base|) (+ |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.offset| 12)))) (let ((.cse3 (store |c_#memory_$Pointer$.offset| .cse5 v_ArrVal_3324)) (.cse0 (store |c_#memory_$Pointer$.base| .cse5 v_ArrVal_3325)) (.cse4 (+ 533 c_~if_usb_driver_group1~0.offset))) (let ((.cse1 (select (select .cse0 c_~if_usb_driver_group1~0.base) .cse4)) (.cse2 (+ (select (select .cse3 c_~if_usb_driver_group1~0.base) .cse4) 28))) (+ (select (select .cse0 .cse1) .cse2) (select (select .cse3 .cse1) .cse2))))) 18446744073709551616))) is different from false [2021-11-22 23:25:09,720 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3322 (Array Int Int)) (v_ArrVal_3324 (Array Int Int)) (v_ArrVal_3325 (Array Int Int)) (v_ArrVal_3319 (Array Int Int))) (< 0 (mod (let ((.cse8 (+ |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.offset| 12))) (let ((.cse7 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base|) .cse8))) (let ((.cse5 (store |c_#memory_$Pointer$.base| .cse7 v_ArrVal_3319))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base|) .cse8))) (let ((.cse0 (store (store |c_#memory_$Pointer$.offset| .cse7 v_ArrVal_3322) .cse6 v_ArrVal_3324)) (.cse3 (store .cse5 .cse6 v_ArrVal_3325)) (.cse4 (+ 533 c_~if_usb_driver_group1~0.offset))) (let ((.cse1 (select (select .cse3 c_~if_usb_driver_group1~0.base) .cse4)) (.cse2 (+ (select (select .cse0 c_~if_usb_driver_group1~0.base) .cse4) 28))) (+ (select (select .cse0 .cse1) .cse2) (select (select .cse3 .cse1) .cse2)))))))) 18446744073709551616))) is different from false [2021-11-22 23:25:13,275 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3322 (Array Int Int)) (v_ArrVal_3314 Int) (v_ArrVal_3311 Int) (v_ArrVal_3324 (Array Int Int)) (v_ArrVal_3325 (Array Int Int)) (v_ArrVal_3310 Int) (v_ArrVal_3319 (Array Int Int))) (< 0 (mod (let ((.cse9 (+ (* c_~last_index~0 8) |c_~#set_impl~0.offset|))) (let ((.cse12 (store |c_#memory_$Pointer$.base| |c_~#set_impl~0.base| (store (select |c_#memory_$Pointer$.base| |c_~#set_impl~0.base|) .cse9 v_ArrVal_3311))) (.cse8 (+ |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.offset| 36))) (let ((.cse13 (store (select .cse12 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base|) .cse8 v_ArrVal_3314)) (.cse11 (+ |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.offset| 12))) (let ((.cse10 (select .cse13 .cse11))) (let ((.cse5 (store (store .cse12 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base| .cse13) .cse10 v_ArrVal_3319))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base|) .cse11))) (let ((.cse3 (store (store (let ((.cse7 (store |c_#memory_$Pointer$.offset| |c_~#set_impl~0.base| (store (select |c_#memory_$Pointer$.offset| |c_~#set_impl~0.base|) .cse9 v_ArrVal_3310)))) (store .cse7 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base| (store (select .cse7 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base|) .cse8 |c_ULTIMATE.start_ldv_skb_alloc_~skb~3#1.offset|))) .cse10 v_ArrVal_3322) .cse6 v_ArrVal_3324)) (.cse0 (store .cse5 .cse6 v_ArrVal_3325)) (.cse4 (+ 533 c_~if_usb_driver_group1~0.offset))) (let ((.cse1 (select (select .cse0 c_~if_usb_driver_group1~0.base) .cse4)) (.cse2 (+ (select (select .cse3 c_~if_usb_driver_group1~0.base) .cse4) 28))) (+ (select (select .cse0 .cse1) .cse2) (select (select .cse3 .cse1) .cse2)))))))))) 18446744073709551616))) is different from false [2021-11-22 23:25:13,387 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3322 (Array Int Int)) (v_ArrVal_3314 Int) (v_ArrVal_3311 Int) (v_ArrVal_3324 (Array Int Int)) (v_ArrVal_3325 (Array Int Int)) (v_ArrVal_3310 Int) (v_ArrVal_3319 (Array Int Int))) (< 0 (mod (let ((.cse9 (+ (* c_~last_index~0 8) |c_~#set_impl~0.offset|))) (let ((.cse12 (store |c_#memory_$Pointer$.base| |c_~#set_impl~0.base| (store (select |c_#memory_$Pointer$.base| |c_~#set_impl~0.base|) .cse9 v_ArrVal_3311))) (.cse8 (+ |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.offset| 36))) (let ((.cse13 (store (select .cse12 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base|) .cse8 v_ArrVal_3314)) (.cse11 (+ |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.offset| 12))) (let ((.cse10 (select .cse13 .cse11))) (let ((.cse5 (store (store .cse12 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base| .cse13) .cse10 v_ArrVal_3319))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base|) .cse11))) (let ((.cse0 (store (store (let ((.cse7 (store |c_#memory_$Pointer$.offset| |c_~#set_impl~0.base| (store (select |c_#memory_$Pointer$.offset| |c_~#set_impl~0.base|) .cse9 v_ArrVal_3310)))) (store .cse7 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base| (store (select .cse7 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base|) .cse8 |c_ULTIMATE.start_ldv_zalloc_#res#1.offset|))) .cse10 v_ArrVal_3322) .cse6 v_ArrVal_3324)) (.cse3 (store .cse5 .cse6 v_ArrVal_3325)) (.cse4 (+ 533 c_~if_usb_driver_group1~0.offset))) (let ((.cse1 (select (select .cse3 c_~if_usb_driver_group1~0.base) .cse4)) (.cse2 (+ 28 (select (select .cse0 c_~if_usb_driver_group1~0.base) .cse4)))) (+ (select (select .cse0 .cse1) .cse2) (select (select .cse3 .cse1) .cse2)))))))))) 18446744073709551616))) is different from false [2021-11-22 23:25:13,430 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3322 (Array Int Int)) (v_ArrVal_3314 Int) (v_ArrVal_3311 Int) (v_ArrVal_3324 (Array Int Int)) (v_ArrVal_3325 (Array Int Int)) (v_ArrVal_3310 Int) (v_ArrVal_3319 (Array Int Int))) (< 0 (mod (let ((.cse9 (+ (* c_~last_index~0 8) |c_~#set_impl~0.offset|))) (let ((.cse12 (store |c_#memory_$Pointer$.base| |c_~#set_impl~0.base| (store (select |c_#memory_$Pointer$.base| |c_~#set_impl~0.base|) .cse9 v_ArrVal_3311))) (.cse8 (+ |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.offset| 36))) (let ((.cse13 (store (select .cse12 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base|) .cse8 v_ArrVal_3314)) (.cse11 (+ |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.offset| 12))) (let ((.cse10 (select .cse13 .cse11))) (let ((.cse5 (store (store .cse12 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base| .cse13) .cse10 v_ArrVal_3319))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base|) .cse11))) (let ((.cse0 (store (store (let ((.cse7 (store |c_#memory_$Pointer$.offset| |c_~#set_impl~0.base| (store (select |c_#memory_$Pointer$.offset| |c_~#set_impl~0.base|) .cse9 v_ArrVal_3310)))) (store .cse7 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base| (store (select .cse7 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base|) .cse8 |c_ULTIMATE.start_ldv_zalloc_~p~1#1.offset|))) .cse10 v_ArrVal_3322) .cse6 v_ArrVal_3324)) (.cse3 (store .cse5 .cse6 v_ArrVal_3325)) (.cse4 (+ 533 c_~if_usb_driver_group1~0.offset))) (let ((.cse1 (select (select .cse3 c_~if_usb_driver_group1~0.base) .cse4)) (.cse2 (+ 28 (select (select .cse0 c_~if_usb_driver_group1~0.base) .cse4)))) (+ (select (select .cse0 .cse1) .cse2) (select (select .cse3 .cse1) .cse2)))))))))) 18446744073709551616))) is different from false [2021-11-22 23:25:13,491 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3322 (Array Int Int)) (v_ArrVal_3314 Int) (v_ArrVal_3311 Int) (v_ArrVal_3324 (Array Int Int)) (v_ArrVal_3325 (Array Int Int)) (v_ArrVal_3310 Int) (v_ArrVal_3319 (Array Int Int))) (< 0 (mod (let ((.cse9 (+ (* c_~last_index~0 8) |c_~#set_impl~0.offset|))) (let ((.cse12 (store |c_#memory_$Pointer$.base| |c_~#set_impl~0.base| (store (select |c_#memory_$Pointer$.base| |c_~#set_impl~0.base|) .cse9 v_ArrVal_3311))) (.cse8 (+ |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.offset| 36))) (let ((.cse13 (store (select .cse12 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base|) .cse8 v_ArrVal_3314)) (.cse11 (+ |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.offset| 12))) (let ((.cse10 (select .cse13 .cse11))) (let ((.cse5 (store (store .cse12 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base| .cse13) .cse10 v_ArrVal_3319))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base|) .cse11))) (let ((.cse3 (store (store (let ((.cse7 (store |c_#memory_$Pointer$.offset| |c_~#set_impl~0.base| (store (select |c_#memory_$Pointer$.offset| |c_~#set_impl~0.base|) .cse9 v_ArrVal_3310)))) (store .cse7 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base| (store (select .cse7 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base|) .cse8 |c_ULTIMATE.start_ldv_zalloc_#t~malloc49#1.offset|))) .cse10 v_ArrVal_3322) .cse6 v_ArrVal_3324)) (.cse0 (store .cse5 .cse6 v_ArrVal_3325)) (.cse4 (+ 533 c_~if_usb_driver_group1~0.offset))) (let ((.cse1 (select (select .cse0 c_~if_usb_driver_group1~0.base) .cse4)) (.cse2 (+ (select (select .cse3 c_~if_usb_driver_group1~0.base) .cse4) 28))) (+ (select (select .cse0 .cse1) .cse2) (select (select .cse3 .cse1) .cse2)))))))))) 18446744073709551616))) is different from false [2021-11-22 23:25:13,541 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3322 (Array Int Int)) (v_ArrVal_3314 Int) (v_ArrVal_3311 Int) (v_ArrVal_3324 (Array Int Int)) (v_ArrVal_3325 (Array Int Int)) (v_ArrVal_3310 Int) (v_ArrVal_3319 (Array Int Int))) (< 0 (mod (let ((.cse9 (+ (* c_~last_index~0 8) |c_~#set_impl~0.offset|))) (let ((.cse12 (store |c_#memory_$Pointer$.base| |c_~#set_impl~0.base| (store (select |c_#memory_$Pointer$.base| |c_~#set_impl~0.base|) .cse9 v_ArrVal_3311))) (.cse8 (+ |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.offset| 36))) (let ((.cse13 (store (select .cse12 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base|) .cse8 v_ArrVal_3314)) (.cse11 (+ |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.offset| 12))) (let ((.cse10 (select .cse13 .cse11))) (let ((.cse5 (store (store .cse12 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base| .cse13) .cse10 v_ArrVal_3319))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base|) .cse11))) (let ((.cse3 (store (store (let ((.cse7 (store |c_#memory_$Pointer$.offset| |c_~#set_impl~0.base| (store (select |c_#memory_$Pointer$.offset| |c_~#set_impl~0.base|) .cse9 v_ArrVal_3310)))) (store .cse7 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base| (store (select .cse7 |c_ULTIMATE.start___if_usb_submit_rx_urb_~cardp#1.base|) .cse8 0))) .cse10 v_ArrVal_3322) .cse6 v_ArrVal_3324)) (.cse0 (store .cse5 .cse6 v_ArrVal_3325)) (.cse4 (+ 533 c_~if_usb_driver_group1~0.offset))) (let ((.cse1 (select (select .cse0 c_~if_usb_driver_group1~0.base) .cse4)) (.cse2 (+ (select (select .cse3 c_~if_usb_driver_group1~0.base) .cse4) 28))) (+ (select (select .cse0 .cse1) .cse2) (select (select .cse3 .cse1) .cse2)))))))))) 18446744073709551616))) is different from false [2021-11-22 23:25:13,588 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3322 (Array Int Int)) (v_ArrVal_3314 Int) (v_ArrVal_3311 Int) (v_ArrVal_3324 (Array Int Int)) (v_ArrVal_3325 (Array Int Int)) (v_ArrVal_3310 Int) (v_ArrVal_3319 (Array Int Int))) (< 0 (mod (let ((.cse9 (+ (* c_~last_index~0 8) |c_~#set_impl~0.offset|))) (let ((.cse12 (store |c_#memory_$Pointer$.base| |c_~#set_impl~0.base| (store (select |c_#memory_$Pointer$.base| |c_~#set_impl~0.base|) .cse9 v_ArrVal_3311))) (.cse8 (+ |c_ULTIMATE.start_if_usb_resume_~cardp~10#1.offset| 36))) (let ((.cse13 (store (select .cse12 |c_ULTIMATE.start_if_usb_resume_~cardp~10#1.base|) .cse8 v_ArrVal_3314)) (.cse11 (+ |c_ULTIMATE.start_if_usb_resume_~cardp~10#1.offset| 12))) (let ((.cse10 (select .cse13 .cse11))) (let ((.cse5 (store (store .cse12 |c_ULTIMATE.start_if_usb_resume_~cardp~10#1.base| .cse13) .cse10 v_ArrVal_3319))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start_if_usb_resume_~cardp~10#1.base|) .cse11))) (let ((.cse3 (store (store (let ((.cse7 (store |c_#memory_$Pointer$.offset| |c_~#set_impl~0.base| (store (select |c_#memory_$Pointer$.offset| |c_~#set_impl~0.base|) .cse9 v_ArrVal_3310)))) (store .cse7 |c_ULTIMATE.start_if_usb_resume_~cardp~10#1.base| (store (select .cse7 |c_ULTIMATE.start_if_usb_resume_~cardp~10#1.base|) .cse8 0))) .cse10 v_ArrVal_3322) .cse6 v_ArrVal_3324)) (.cse0 (store .cse5 .cse6 v_ArrVal_3325)) (.cse4 (+ 533 c_~if_usb_driver_group1~0.offset))) (let ((.cse1 (select (select .cse0 c_~if_usb_driver_group1~0.base) .cse4)) (.cse2 (+ (select (select .cse3 c_~if_usb_driver_group1~0.base) .cse4) 28))) (+ (select (select .cse0 .cse1) .cse2) (select (select .cse3 .cse1) .cse2)))))))))) 18446744073709551616))) is different from false [2021-11-22 23:25:13,657 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3322 (Array Int Int)) (v_ArrVal_3314 Int) (v_ArrVal_3311 Int) (v_ArrVal_3324 (Array Int Int)) (v_ArrVal_3325 (Array Int Int)) (v_ArrVal_3310 Int) (v_ArrVal_3319 (Array Int Int))) (< 0 (mod (let ((.cse9 (+ (* c_~last_index~0 8) |c_~#set_impl~0.offset|))) (let ((.cse12 (store |c_#memory_$Pointer$.base| |c_~#set_impl~0.base| (store (select |c_#memory_$Pointer$.base| |c_~#set_impl~0.base|) .cse9 v_ArrVal_3311))) (.cse8 (+ |c_ULTIMATE.start_usb_get_intfdata_#res#1.offset| 36))) (let ((.cse13 (store (select .cse12 |c_ULTIMATE.start_usb_get_intfdata_#res#1.base|) .cse8 v_ArrVal_3314)) (.cse11 (+ |c_ULTIMATE.start_usb_get_intfdata_#res#1.offset| 12))) (let ((.cse10 (select .cse13 .cse11))) (let ((.cse5 (store (store .cse12 |c_ULTIMATE.start_usb_get_intfdata_#res#1.base| .cse13) .cse10 v_ArrVal_3319))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start_usb_get_intfdata_#res#1.base|) .cse11))) (let ((.cse0 (store (store (let ((.cse7 (store |c_#memory_$Pointer$.offset| |c_~#set_impl~0.base| (store (select |c_#memory_$Pointer$.offset| |c_~#set_impl~0.base|) .cse9 v_ArrVal_3310)))) (store .cse7 |c_ULTIMATE.start_usb_get_intfdata_#res#1.base| (store (select .cse7 |c_ULTIMATE.start_usb_get_intfdata_#res#1.base|) .cse8 0))) .cse10 v_ArrVal_3322) .cse6 v_ArrVal_3324)) (.cse3 (store .cse5 .cse6 v_ArrVal_3325)) (.cse4 (+ 533 c_~if_usb_driver_group1~0.offset))) (let ((.cse1 (select (select .cse3 c_~if_usb_driver_group1~0.base) .cse4)) (.cse2 (+ (select (select .cse0 c_~if_usb_driver_group1~0.base) .cse4) 28))) (+ (select (select .cse0 .cse1) .cse2) (select (select .cse3 .cse1) .cse2)))))))))) 18446744073709551616))) is different from false [2021-11-22 23:25:13,720 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3322 (Array Int Int)) (v_ArrVal_3314 Int) (v_ArrVal_3311 Int) (v_ArrVal_3324 (Array Int Int)) (v_ArrVal_3325 (Array Int Int)) (v_ArrVal_3310 Int) (v_ArrVal_3319 (Array Int Int))) (< 0 (mod (let ((.cse9 (+ (* c_~last_index~0 8) |c_~#set_impl~0.offset|))) (let ((.cse12 (store |c_#memory_$Pointer$.base| |c_~#set_impl~0.base| (store (select |c_#memory_$Pointer$.base| |c_~#set_impl~0.base|) .cse9 v_ArrVal_3311))) (.cse8 (+ 36 |c_ULTIMATE.start_dev_get_drvdata_#res#1.offset|))) (let ((.cse13 (store (select .cse12 |c_ULTIMATE.start_dev_get_drvdata_#res#1.base|) .cse8 v_ArrVal_3314)) (.cse11 (+ 12 |c_ULTIMATE.start_dev_get_drvdata_#res#1.offset|))) (let ((.cse10 (select .cse13 .cse11))) (let ((.cse5 (store (store .cse12 |c_ULTIMATE.start_dev_get_drvdata_#res#1.base| .cse13) .cse10 v_ArrVal_3319))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start_dev_get_drvdata_#res#1.base|) .cse11))) (let ((.cse3 (store (store (let ((.cse7 (store |c_#memory_$Pointer$.offset| |c_~#set_impl~0.base| (store (select |c_#memory_$Pointer$.offset| |c_~#set_impl~0.base|) .cse9 v_ArrVal_3310)))) (store .cse7 |c_ULTIMATE.start_dev_get_drvdata_#res#1.base| (store (select .cse7 |c_ULTIMATE.start_dev_get_drvdata_#res#1.base|) .cse8 0))) .cse10 v_ArrVal_3322) .cse6 v_ArrVal_3324)) (.cse0 (store .cse5 .cse6 v_ArrVal_3325)) (.cse4 (+ 533 c_~if_usb_driver_group1~0.offset))) (let ((.cse1 (select (select .cse0 c_~if_usb_driver_group1~0.base) .cse4)) (.cse2 (+ 28 (select (select .cse3 c_~if_usb_driver_group1~0.base) .cse4)))) (+ (select (select .cse0 .cse1) .cse2) (select (select .cse3 .cse1) .cse2)))))))))) 18446744073709551616))) is different from false [2021-11-22 23:25:13,870 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3322 (Array Int Int)) (v_ArrVal_3314 Int) (v_ArrVal_3311 Int) (v_ArrVal_3324 (Array Int Int)) (v_ArrVal_3325 (Array Int Int)) (v_ArrVal_3310 Int) (v_ArrVal_3319 (Array Int Int))) (< 0 (mod (let ((.cse4 (+ 533 c_~if_usb_driver_group1~0.offset))) (let ((.cse15 (select (select |c_#memory_$Pointer$.offset| c_~if_usb_driver_group1~0.base) .cse4)) (.cse10 (+ (* c_~last_index~0 8) |c_~#set_impl~0.offset|))) (let ((.cse13 (store |c_#memory_$Pointer$.base| |c_~#set_impl~0.base| (store (select |c_#memory_$Pointer$.base| |c_~#set_impl~0.base|) .cse10 v_ArrVal_3311))) (.cse8 (select (select |c_#memory_$Pointer$.base| c_~if_usb_driver_group1~0.base) .cse4)) (.cse9 (+ .cse15 36))) (let ((.cse14 (store (select .cse13 .cse8) .cse9 v_ArrVal_3314)) (.cse12 (+ .cse15 12))) (let ((.cse11 (select .cse14 .cse12))) (let ((.cse5 (store (store .cse13 .cse8 .cse14) .cse11 v_ArrVal_3319))) (let ((.cse6 (select (select .cse5 .cse8) .cse12))) (let ((.cse0 (store (store (let ((.cse7 (store |c_#memory_$Pointer$.offset| |c_~#set_impl~0.base| (store (select |c_#memory_$Pointer$.offset| |c_~#set_impl~0.base|) .cse10 v_ArrVal_3310)))) (store .cse7 .cse8 (store (select .cse7 .cse8) .cse9 0))) .cse11 v_ArrVal_3322) .cse6 v_ArrVal_3324)) (.cse3 (store .cse5 .cse6 v_ArrVal_3325))) (let ((.cse1 (select (select .cse3 c_~if_usb_driver_group1~0.base) .cse4)) (.cse2 (+ 28 (select (select .cse0 c_~if_usb_driver_group1~0.base) .cse4)))) (+ (select (select .cse0 .cse1) .cse2) (select (select .cse3 .cse1) .cse2))))))))))) 18446744073709551616))) is different from false [2021-11-22 23:25:14,711 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3322 (Array Int Int)) (v_ArrVal_3314 Int) (v_ArrVal_3311 Int) (v_ArrVal_3324 (Array Int Int)) (v_ArrVal_3325 (Array Int Int)) (v_ArrVal_3310 Int) (v_ArrVal_3319 (Array Int Int))) (< 0 (mod (let ((.cse18 (+ |c_ULTIMATE.start_if_usb_probe_~intf#1.offset| 533))) (let ((.cse10 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_if_usb_probe_~intf#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_if_usb_probe_~intf#1.base|) .cse18 |c_ULTIMATE.start_if_usb_probe_~cardp~3#1.offset|))) (.cse4 (+ 533 c_~if_usb_driver_group1~0.offset))) (let ((.cse16 (select (select .cse10 c_~if_usb_driver_group1~0.base) .cse4)) (.cse17 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_if_usb_probe_~intf#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_if_usb_probe_~intf#1.base|) .cse18 |c_ULTIMATE.start_if_usb_probe_~cardp~3#1.base|))) (.cse11 (+ (* c_~last_index~0 8) |c_~#set_impl~0.offset|))) (let ((.cse14 (store .cse17 |c_~#set_impl~0.base| (store (select .cse17 |c_~#set_impl~0.base|) .cse11 v_ArrVal_3311))) (.cse8 (select (select .cse17 c_~if_usb_driver_group1~0.base) .cse4)) (.cse9 (+ .cse16 36))) (let ((.cse15 (store (select .cse14 .cse8) .cse9 v_ArrVal_3314)) (.cse13 (+ .cse16 12))) (let ((.cse12 (select .cse15 .cse13))) (let ((.cse5 (store (store .cse14 .cse8 .cse15) .cse12 v_ArrVal_3319))) (let ((.cse6 (select (select .cse5 .cse8) .cse13))) (let ((.cse0 (store (store (let ((.cse7 (store .cse10 |c_~#set_impl~0.base| (store (select .cse10 |c_~#set_impl~0.base|) .cse11 v_ArrVal_3310)))) (store .cse7 .cse8 (store (select .cse7 .cse8) .cse9 0))) .cse12 v_ArrVal_3322) .cse6 v_ArrVal_3324)) (.cse3 (store .cse5 .cse6 v_ArrVal_3325))) (let ((.cse1 (select (select .cse3 c_~if_usb_driver_group1~0.base) .cse4)) (.cse2 (+ (select (select .cse0 c_~if_usb_driver_group1~0.base) .cse4) 28))) (+ (select (select .cse0 .cse1) .cse2) (select (select .cse3 .cse1) .cse2)))))))))))) 18446744073709551616))) is different from false