./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.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 2fb57b2bb2bc18ca610846448c9906bd8fe64138062c47c98cb2cc2c7b0326e3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 00:18:13,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:18:13,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:18:13,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:18:13,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:18:13,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:18:13,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:18:13,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:18:13,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:18:13,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:18:13,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:18:13,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:18:13,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:18:13,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:18:13,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:18:13,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:18:13,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:18:13,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:18:13,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:18:13,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:18:13,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:18:13,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:18:13,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:18:13,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:18:13,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:18:13,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:18:13,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:18:13,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:18:13,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:18:13,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:18:13,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:18:13,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:18:13,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:18:13,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:18:13,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:18:13,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:18:13,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:18:13,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:18:13,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:18:13,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:18:13,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:18:13,509 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 00:18:13,533 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:18:13,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:18:13,534 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 00:18:13,534 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 00:18:13,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:18:13,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:18:13,535 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 00:18:13,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:18:13,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:18:13,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:18:13,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:18:13,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:18:13,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:18:13,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:18:13,537 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:18:13,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:18:13,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:18:13,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 00:18:13,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 00:18:13,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 00:18:13,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:18:13,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:18:13,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:18:13,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 00:18:13,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:18:13,538 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 00:18:13,538 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 00:18:13,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:18:13,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 00:18:13,540 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fb57b2bb2bc18ca610846448c9906bd8fe64138062c47c98cb2cc2c7b0326e3 [2021-11-23 00:18:13,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:18:13,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:18:13,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:18:13,754 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:18:13,755 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:18:13,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i [2021-11-23 00:18:13,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc6720206/cdb684922b864aba9d1d1cdb6514eeba/FLAGb1650e8fa [2021-11-23 00:18:14,430 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:18:14,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i [2021-11-23 00:18:14,467 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc6720206/cdb684922b864aba9d1d1cdb6514eeba/FLAGb1650e8fa [2021-11-23 00:18:14,836 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc6720206/cdb684922b864aba9d1d1cdb6514eeba [2021-11-23 00:18:14,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:18:14,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:18:14,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:18:14,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:18:14,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:18:14,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:18:14" (1/1) ... [2021-11-23 00:18:14,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@674cb8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:14, skipping insertion in model container [2021-11-23 00:18:14,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:18:14" (1/1) ... [2021-11-23 00:18:14,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:18:14,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:18:15,344 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4492] [2021-11-23 00:18:16,393 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i[415155,415168] [2021-11-23 00:18:16,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:18:16,456 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:18:16,535 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4492] [2021-11-23 00:18:16,825 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i[415155,415168] [2021-11-23 00:18:16,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:18:16,887 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:18:16,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:16 WrapperNode [2021-11-23 00:18:16,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:18:16,889 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:18:16,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:18:16,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:18:16,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:16" (1/1) ... [2021-11-23 00:18:16,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:16" (1/1) ... [2021-11-23 00:18:17,226 INFO L137 Inliner]: procedures = 174, calls = 2584, calls flagged for inlining = 475, calls inlined = 992, statements flattened = 15523 [2021-11-23 00:18:17,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:18:17,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:18:17,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:18:17,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:18:17,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:16" (1/1) ... [2021-11-23 00:18:17,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:16" (1/1) ... [2021-11-23 00:18:17,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:16" (1/1) ... [2021-11-23 00:18:17,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:16" (1/1) ... [2021-11-23 00:18:17,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:16" (1/1) ... [2021-11-23 00:18:17,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:16" (1/1) ... [2021-11-23 00:18:17,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:16" (1/1) ... [2021-11-23 00:18:17,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:18:17,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:18:17,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:18:17,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:18:17,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:16" (1/1) ... [2021-11-23 00:18:17,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 00:18:17,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 00:18:17,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 00:18:17,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 00:18:17,810 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-23 00:18:17,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-23 00:18:17,810 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_free_device [2021-11-23 00:18:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 00:18:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 00:18:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 00:18:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:18:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 00:18:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 00:18:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 00:18:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure drxk_gate_ctrl [2021-11-23 00:18:17,812 INFO L138 BoogieDeclarations]: Found implementation of procedure drxk_gate_ctrl [2021-11-23 00:18:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-23 00:18:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 00:18:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 00:18:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:18:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:18:17,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:18:18,526 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:18:18,528 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:18:45,383 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:18:45,408 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:18:45,408 INFO L301 CfgBuilder]: Removed 24 assume(true) statements. [2021-11-23 00:18:45,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:18:45 BoogieIcfgContainer [2021-11-23 00:18:45,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:18:45,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 00:18:45,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 00:18:45,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 00:18:45,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:18:14" (1/3) ... [2021-11-23 00:18:45,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@213b53b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:18:45, skipping insertion in model container [2021-11-23 00:18:45,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:16" (2/3) ... [2021-11-23 00:18:45,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@213b53b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:18:45, skipping insertion in model container [2021-11-23 00:18:45,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:18:45" (3/3) ... [2021-11-23 00:18:45,419 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i [2021-11-23 00:18:45,423 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 00:18:45,423 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2021-11-23 00:18:45,465 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 00:18:45,469 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 00:18:45,469 INFO L340 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2021-11-23 00:18:45,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 3038 states, 2997 states have (on average 1.5458792125458791) internal successors, (4633), 3028 states have internal predecessors, (4633), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-23 00:18:45,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 00:18:45,514 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:18:45,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:18:45,515 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 00:18:45,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:18:45,519 INFO L85 PathProgramCache]: Analyzing trace with hash 125228233, now seen corresponding path program 1 times [2021-11-23 00:18:45,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:18:45,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668623487] [2021-11-23 00:18:45,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:18:45,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:18:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:18:45,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:18:45,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:18:45,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668623487] [2021-11-23 00:18:45,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668623487] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:18:45,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:18:45,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 00:18:45,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446887647] [2021-11-23 00:18:45,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:18:45,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 00:18:45,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:18:45,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 00:18:45,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 00:18:45,948 INFO L87 Difference]: Start difference. First operand has 3038 states, 2997 states have (on average 1.5458792125458791) internal successors, (4633), 3028 states have internal predecessors, (4633), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:18:46,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:18:46,039 INFO L93 Difference]: Finished difference Result 6041 states and 9258 transitions. [2021-11-23 00:18:46,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 00:18:46,041 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 18 [2021-11-23 00:18:46,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:18:46,062 INFO L225 Difference]: With dead ends: 6041 [2021-11-23 00:18:46,062 INFO L226 Difference]: Without dead ends: 2999 [2021-11-23 00:18:46,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 00:18:46,081 INFO L933 BasicCegarLoop]: 4438 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4438 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 00:18:46,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 4438 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:18:46,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2021-11-23 00:18:46,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 2999. [2021-11-23 00:18:46,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2999 states, 2959 states have (on average 1.4910442717134167) internal successors, (4412), 2989 states have internal predecessors, (4412), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-23 00:18:46,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2999 states to 2999 states and 4426 transitions. [2021-11-23 00:18:46,196 INFO L78 Accepts]: Start accepts. Automaton has 2999 states and 4426 transitions. Word has length 18 [2021-11-23 00:18:46,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:18:46,196 INFO L470 AbstractCegarLoop]: Abstraction has 2999 states and 4426 transitions. [2021-11-23 00:18:46,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:18:46,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2999 states and 4426 transitions. [2021-11-23 00:18:46,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 00:18:46,198 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:18:46,198 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:18:46,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 00:18:46,199 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 00:18:46,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:18:46,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1154635445, now seen corresponding path program 1 times [2021-11-23 00:18:46,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:18:46,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575910707] [2021-11-23 00:18:46,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:18:46,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:18:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:18:46,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:18:46,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:18:46,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575910707] [2021-11-23 00:18:46,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575910707] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:18:46,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:18:46,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:18:46,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117740411] [2021-11-23 00:18:46,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:18:46,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:18:46,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:18:46,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:18:46,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:18:46,375 INFO L87 Difference]: Start difference. First operand 2999 states and 4426 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:18:46,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:18:46,583 INFO L93 Difference]: Finished difference Result 8968 states and 13248 transitions. [2021-11-23 00:18:46,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:18:46,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2021-11-23 00:18:46,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:18:46,602 INFO L225 Difference]: With dead ends: 8968 [2021-11-23 00:18:46,603 INFO L226 Difference]: Without dead ends: 5976 [2021-11-23 00:18:46,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:18:46,610 INFO L933 BasicCegarLoop]: 4430 mSDtfsCounter, 4399 mSDsluCounter, 4411 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4399 SdHoareTripleChecker+Valid, 8841 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 [2021-11-23 00:18:46,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4399 Valid, 8841 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 00:18:46,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2021-11-23 00:18:46,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 5916. [2021-11-23 00:18:46,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5916 states, 5867 states have (on average 1.4944605420146582) internal successors, (8768), 5897 states have internal predecessors, (8768), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-23 00:18:46,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5916 states to 5916 states and 8796 transitions. [2021-11-23 00:18:46,721 INFO L78 Accepts]: Start accepts. Automaton has 5916 states and 8796 transitions. Word has length 18 [2021-11-23 00:18:46,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:18:46,721 INFO L470 AbstractCegarLoop]: Abstraction has 5916 states and 8796 transitions. [2021-11-23 00:18:46,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:18:46,721 INFO L276 IsEmpty]: Start isEmpty. Operand 5916 states and 8796 transitions. [2021-11-23 00:18:46,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 00:18:46,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:18:46,723 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] [2021-11-23 00:18:46,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 00:18:46,723 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 00:18:46,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:18:46,724 INFO L85 PathProgramCache]: Analyzing trace with hash 120616, now seen corresponding path program 1 times [2021-11-23 00:18:46,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:18:46,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273444349] [2021-11-23 00:18:46,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:18:46,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:18:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:18:46,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:18:46,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:18:46,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273444349] [2021-11-23 00:18:46,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273444349] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:18:46,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:18:46,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 00:18:46,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339021053] [2021-11-23 00:18:46,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:18:46,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:18:46,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:18:46,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:18:46,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:18:46,868 INFO L87 Difference]: Start difference. First operand 5916 states and 8796 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:18:47,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:18:47,427 INFO L93 Difference]: Finished difference Result 17672 states and 26313 transitions. [2021-11-23 00:18:47,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:18:47,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 20 [2021-11-23 00:18:47,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:18:47,466 INFO L225 Difference]: With dead ends: 17672 [2021-11-23 00:18:47,466 INFO L226 Difference]: Without dead ends: 11759 [2021-11-23 00:18:47,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:18:47,482 INFO L933 BasicCegarLoop]: 4393 mSDtfsCounter, 4336 mSDsluCounter, 4318 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4336 SdHoareTripleChecker+Valid, 8711 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 00:18:47,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4336 Valid, 8711 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 00:18:47,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11759 states. [2021-11-23 00:18:47,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11759 to 11669. [2021-11-23 00:18:47,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11669 states, 11602 states have (on average 1.494742285812791) internal successors, (17342), 11632 states have internal predecessors, (17342), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-23 00:18:47,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11669 states to 11669 states and 17398 transitions. [2021-11-23 00:18:47,723 INFO L78 Accepts]: Start accepts. Automaton has 11669 states and 17398 transitions. Word has length 20 [2021-11-23 00:18:47,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:18:47,723 INFO L470 AbstractCegarLoop]: Abstraction has 11669 states and 17398 transitions. [2021-11-23 00:18:47,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:18:47,725 INFO L276 IsEmpty]: Start isEmpty. Operand 11669 states and 17398 transitions. [2021-11-23 00:18:47,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 00:18:47,727 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:18:47,727 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] [2021-11-23 00:18:47,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 00:18:47,728 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 00:18:47,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:18:47,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1067989307, now seen corresponding path program 1 times [2021-11-23 00:18:47,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:18:47,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765672619] [2021-11-23 00:18:47,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:18:47,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:18:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:18:47,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:18:47,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:18:47,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765672619] [2021-11-23 00:18:47,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765672619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:18:47,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:18:47,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:18:47,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249437291] [2021-11-23 00:18:47,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:18:47,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:18:47,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:18:47,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:18:47,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:18:47,872 INFO L87 Difference]: Start difference. First operand 11669 states and 17398 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:18:48,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:18:48,317 INFO L93 Difference]: Finished difference Result 23589 states and 35130 transitions. [2021-11-23 00:18:48,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:18:48,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2021-11-23 00:18:48,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:18:48,357 INFO L225 Difference]: With dead ends: 23589 [2021-11-23 00:18:48,358 INFO L226 Difference]: Without dead ends: 11927 [2021-11-23 00:18:48,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:18:48,380 INFO L933 BasicCegarLoop]: 4434 mSDtfsCounter, 95 mSDsluCounter, 4353 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 8787 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 00:18:48,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 8787 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 00:18:48,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11927 states. [2021-11-23 00:18:48,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11927 to 11921. [2021-11-23 00:18:48,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11921 states, 11854 states have (on average 1.490973511051122) internal successors, (17674), 11884 states have internal predecessors, (17674), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-23 00:18:48,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11921 states to 11921 states and 17730 transitions. [2021-11-23 00:18:48,644 INFO L78 Accepts]: Start accepts. Automaton has 11921 states and 17730 transitions. Word has length 24 [2021-11-23 00:18:48,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:18:48,645 INFO L470 AbstractCegarLoop]: Abstraction has 11921 states and 17730 transitions. [2021-11-23 00:18:48,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:18:48,645 INFO L276 IsEmpty]: Start isEmpty. Operand 11921 states and 17730 transitions. [2021-11-23 00:18:48,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 00:18:48,647 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:18:48,648 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 00:18:48,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 00:18:48,648 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 00:18:48,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:18:48,649 INFO L85 PathProgramCache]: Analyzing trace with hash 228597323, now seen corresponding path program 1 times [2021-11-23 00:18:48,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:18:48,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460007095] [2021-11-23 00:18:48,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:18:48,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:18:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:18:48,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:18:48,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:18:48,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460007095] [2021-11-23 00:18:48,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460007095] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:18:48,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:18:48,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:18:48,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985776735] [2021-11-23 00:18:48,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:18:48,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:18:48,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:18:48,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:18:48,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:18:48,837 INFO L87 Difference]: Start difference. First operand 11921 states and 17730 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:18:49,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:18:49,233 INFO L93 Difference]: Finished difference Result 24221 states and 36042 transitions. [2021-11-23 00:18:49,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:18:49,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 40 [2021-11-23 00:18:49,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:18:49,261 INFO L225 Difference]: With dead ends: 24221 [2021-11-23 00:18:49,262 INFO L226 Difference]: Without dead ends: 12307 [2021-11-23 00:18:49,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:18:49,281 INFO L933 BasicCegarLoop]: 4494 mSDtfsCounter, 420 mSDsluCounter, 4060 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 8554 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 00:18:49,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [420 Valid, 8554 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 00:18:49,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12307 states. [2021-11-23 00:18:49,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12307 to 12301. [2021-11-23 00:18:49,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12301 states, 12234 states have (on average 1.485205165931012) internal successors, (18170), 12264 states have internal predecessors, (18170), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-23 00:18:49,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12301 states to 12301 states and 18226 transitions. [2021-11-23 00:18:49,493 INFO L78 Accepts]: Start accepts. Automaton has 12301 states and 18226 transitions. Word has length 40 [2021-11-23 00:18:49,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:18:49,497 INFO L470 AbstractCegarLoop]: Abstraction has 12301 states and 18226 transitions. [2021-11-23 00:18:49,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:18:49,497 INFO L276 IsEmpty]: Start isEmpty. Operand 12301 states and 18226 transitions. [2021-11-23 00:18:49,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 00:18:49,499 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:18:49,500 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 00:18:49,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 00:18:49,500 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 00:18:49,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:18:49,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1070232465, now seen corresponding path program 1 times [2021-11-23 00:18:49,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:18:49,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799773884] [2021-11-23 00:18:49,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:18:49,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:18:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:18:49,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:18:49,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:18:49,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799773884] [2021-11-23 00:18:49,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799773884] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:18:49,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:18:49,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 00:18:49,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036489471] [2021-11-23 00:18:49,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:18:49,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 00:18:49,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:18:49,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 00:18:49,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-23 00:18:49,791 INFO L87 Difference]: Start difference. First operand 12301 states and 18226 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:18:55,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:18:56,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:18:57,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:18:59,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:00,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:01,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:03,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:06,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:08,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:10,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:11,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:13,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:18,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:20,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:22,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:24,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:26,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:28,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:31,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:33,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:35,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:37,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:45,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:47,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:49,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:51,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:53,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:55,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:57,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:19:59,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:01,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:03,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:09,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:11,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:13,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:15,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:17,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:23,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:25,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:27,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:29,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:31,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:33,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:35,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:37,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:39,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:41,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:41,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:20:41,762 INFO L93 Difference]: Finished difference Result 26244 states and 38933 transitions. [2021-11-23 00:20:41,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 00:20:41,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 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 42 [2021-11-23 00:20:41,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:20:41,791 INFO L225 Difference]: With dead ends: 26244 [2021-11-23 00:20:41,791 INFO L226 Difference]: Without dead ends: 13950 [2021-11-23 00:20:41,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-11-23 00:20:41,811 INFO L933 BasicCegarLoop]: 4604 mSDtfsCounter, 1086 mSDsluCounter, 24000 mSDsCounter, 0 mSdLazyCounter, 2862 mSolverCounterSat, 51 mSolverCounterUnsat, 35 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 108.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 28604 SdHoareTripleChecker+Invalid, 2948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2862 IncrementalHoareTripleChecker+Invalid, 35 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 111.4s IncrementalHoareTripleChecker+Time [2021-11-23 00:20:41,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1086 Valid, 28604 Invalid, 2948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2862 Invalid, 35 Unknown, 0 Unchecked, 111.4s Time] [2021-11-23 00:20:41,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13950 states. [2021-11-23 00:20:41,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13950 to 13057. [2021-11-23 00:20:42,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13057 states, 12990 states have (on average 1.4859122401847575) internal successors, (19302), 13020 states have internal predecessors, (19302), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-23 00:20:42,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13057 states to 13057 states and 19358 transitions. [2021-11-23 00:20:42,039 INFO L78 Accepts]: Start accepts. Automaton has 13057 states and 19358 transitions. Word has length 42 [2021-11-23 00:20:42,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:20:42,040 INFO L470 AbstractCegarLoop]: Abstraction has 13057 states and 19358 transitions. [2021-11-23 00:20:42,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:20:42,040 INFO L276 IsEmpty]: Start isEmpty. Operand 13057 states and 19358 transitions. [2021-11-23 00:20:42,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 00:20:42,042 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:20:42,043 INFO L514 BasicCegarLoop]: trace histogram [4, 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] [2021-11-23 00:20:42,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 00:20:42,043 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 00:20:42,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:20:42,044 INFO L85 PathProgramCache]: Analyzing trace with hash 570348585, now seen corresponding path program 1 times [2021-11-23 00:20:42,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:20:42,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106953723] [2021-11-23 00:20:42,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:20:42,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:20:42,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:20:42,261 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 00:20:42,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:20:42,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106953723] [2021-11-23 00:20:42,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106953723] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:20:42,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:20:42,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:20:42,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900809410] [2021-11-23 00:20:42,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:20:42,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:20:42,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:20:42,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:20:42,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:20:42,265 INFO L87 Difference]: Start difference. First operand 13057 states and 19358 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) [2021-11-23 00:20:42,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:20:42,686 INFO L93 Difference]: Finished difference Result 26697 states and 39658 transitions. [2021-11-23 00:20:42,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:20:42,687 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 71 [2021-11-23 00:20:42,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:20:42,713 INFO L225 Difference]: With dead ends: 26697 [2021-11-23 00:20:42,713 INFO L226 Difference]: Without dead ends: 13647 [2021-11-23 00:20:42,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:20:42,733 INFO L933 BasicCegarLoop]: 4531 mSDtfsCounter, 431 mSDsluCounter, 4049 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 8580 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 00:20:42,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 8580 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 00:20:42,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13647 states. [2021-11-23 00:20:42,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13647 to 13641. [2021-11-23 00:20:42,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13641 states, 13574 states have (on average 1.47915131869751) internal successors, (20078), 13604 states have internal predecessors, (20078), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-23 00:20:42,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13641 states to 13641 states and 20134 transitions. [2021-11-23 00:20:42,928 INFO L78 Accepts]: Start accepts. Automaton has 13641 states and 20134 transitions. Word has length 71 [2021-11-23 00:20:42,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:20:42,929 INFO L470 AbstractCegarLoop]: Abstraction has 13641 states and 20134 transitions. [2021-11-23 00:20:42,930 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) [2021-11-23 00:20:42,930 INFO L276 IsEmpty]: Start isEmpty. Operand 13641 states and 20134 transitions. [2021-11-23 00:20:42,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 00:20:42,933 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:20:42,933 INFO L514 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1] [2021-11-23 00:20:42,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 00:20:42,933 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 00:20:42,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:20:42,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1423653675, now seen corresponding path program 1 times [2021-11-23 00:20:42,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:20:42,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054961101] [2021-11-23 00:20:42,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:20:42,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:20:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:20:43,363 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 00:20:43,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:20:43,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054961101] [2021-11-23 00:20:43,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054961101] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:20:43,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:20:43,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 00:20:43,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240146036] [2021-11-23 00:20:43,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:20:43,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 00:20:43,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:20:43,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 00:20:43,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-23 00:20:43,365 INFO L87 Difference]: Start difference. First operand 13641 states and 20134 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:20:48,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:50,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:50,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:20:50,856 INFO L93 Difference]: Finished difference Result 52601 states and 78638 transitions. [2021-11-23 00:20:50,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 00:20:50,863 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-11-23 00:20:50,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:20:50,941 INFO L225 Difference]: With dead ends: 52601 [2021-11-23 00:20:50,942 INFO L226 Difference]: Without dead ends: 38967 [2021-11-23 00:20:50,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-23 00:20:50,969 INFO L933 BasicCegarLoop]: 8042 mSDtfsCounter, 18207 mSDsluCounter, 30855 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 96 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18211 SdHoareTripleChecker+Valid, 38897 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-23 00:20:50,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18211 Valid, 38897 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 905 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2021-11-23 00:20:51,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38967 states. [2021-11-23 00:20:51,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38967 to 13681. [2021-11-23 00:20:51,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13681 states, 13614 states have (on average 1.4777434993389158) internal successors, (20118), 13644 states have internal predecessors, (20118), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-23 00:20:51,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13681 states to 13681 states and 20174 transitions. [2021-11-23 00:20:51,401 INFO L78 Accepts]: Start accepts. Automaton has 13681 states and 20174 transitions. Word has length 74 [2021-11-23 00:20:51,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:20:51,402 INFO L470 AbstractCegarLoop]: Abstraction has 13681 states and 20174 transitions. [2021-11-23 00:20:51,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:20:51,402 INFO L276 IsEmpty]: Start isEmpty. Operand 13681 states and 20174 transitions. [2021-11-23 00:20:51,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-23 00:20:51,404 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:20:51,404 INFO L514 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1] [2021-11-23 00:20:51,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 00:20:51,405 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 00:20:51,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:20:51,405 INFO L85 PathProgramCache]: Analyzing trace with hash -756042385, now seen corresponding path program 1 times [2021-11-23 00:20:51,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:20:51,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009536650] [2021-11-23 00:20:51,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:20:51,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:20:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:20:51,775 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:20:51,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:20:51,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009536650] [2021-11-23 00:20:51,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009536650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:20:51,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:20:51,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 00:20:51,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148051555] [2021-11-23 00:20:51,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:20:51,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 00:20:51,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:20:51,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 00:20:51,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-23 00:20:51,776 INFO L87 Difference]: Start difference. First operand 13681 states and 20174 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:20:54,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:55,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:56,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:20:59,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:01,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:02,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:06,878 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:11,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:12,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:14,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:20,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:22,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:24,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:26,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:28,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:30,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:32,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:34,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:36,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:38,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:47,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:49,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:51,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:53,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:55,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:57,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:21:59,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:22:01,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:22:03,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:22:05,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:22:11,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:22:13,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:22:15,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:22:17,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:22:19,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:22:25,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:22:27,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:22:29,840 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:22:31,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:22:33,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:22:36,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:22:38,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:22:40,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:22:42,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:22:44,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:22:44,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:22:44,598 INFO L93 Difference]: Finished difference Result 28444 states and 41945 transitions. [2021-11-23 00:22:44,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 00:22:44,599 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-23 00:22:44,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:22:44,626 INFO L225 Difference]: With dead ends: 28444 [2021-11-23 00:22:44,627 INFO L226 Difference]: Without dead ends: 14770 [2021-11-23 00:22:44,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-11-23 00:22:44,646 INFO L933 BasicCegarLoop]: 4618 mSDtfsCounter, 1048 mSDsluCounter, 24024 mSDsCounter, 0 mSdLazyCounter, 2843 mSolverCounterSat, 11 mSolverCounterUnsat, 35 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 109.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 28642 SdHoareTripleChecker+Invalid, 2889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2843 IncrementalHoareTripleChecker+Invalid, 35 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 112.2s IncrementalHoareTripleChecker+Time [2021-11-23 00:22:44,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1048 Valid, 28642 Invalid, 2889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2843 Invalid, 35 Unknown, 0 Unchecked, 112.2s Time] [2021-11-23 00:22:44,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14770 states. [2021-11-23 00:22:44,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14770 to 13629. [2021-11-23 00:22:44,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13629 states, 13562 states have (on average 1.4786904586344196) internal successors, (20054), 13592 states have internal predecessors, (20054), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-23 00:22:44,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13629 states to 13629 states and 20110 transitions. [2021-11-23 00:22:44,908 INFO L78 Accepts]: Start accepts. Automaton has 13629 states and 20110 transitions. Word has length 76 [2021-11-23 00:22:44,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:22:44,908 INFO L470 AbstractCegarLoop]: Abstraction has 13629 states and 20110 transitions. [2021-11-23 00:22:44,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:22:44,909 INFO L276 IsEmpty]: Start isEmpty. Operand 13629 states and 20110 transitions. [2021-11-23 00:22:44,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-23 00:22:44,910 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:22:44,911 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-23 00:22:44,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 00:22:44,911 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 00:22:44,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:22:44,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1346213508, now seen corresponding path program 1 times [2021-11-23 00:22:44,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:22:44,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977301402] [2021-11-23 00:22:44,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:22:44,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:16,764 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:24:16,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:24:16,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977301402] [2021-11-23 00:24:16,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977301402] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 00:24:16,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444875766] [2021-11-23 00:24:16,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:24:16,765 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 00:24:16,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 00:24:16,767 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) [2021-11-23 00:24:16,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 00:24:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:19,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 9948 conjuncts, 78 conjunts are in the unsatisfiable core [2021-11-23 00:24:19,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:24:19,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-23 00:24:19,345 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 00:24:20,019 INFO L354 Elim1Store]: treesize reduction 36, result has 12.2 percent of original size [2021-11-23 00:24:20,019 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 134 [2021-11-23 00:24:21,301 INFO L354 Elim1Store]: treesize reduction 1065, result has 14.0 percent of original size [2021-11-23 00:24:21,301 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 11 case distinctions, treesize of input 131 treesize of output 275 [2021-11-23 00:24:21,437 INFO L354 Elim1Store]: treesize reduction 64, result has 16.9 percent of original size [2021-11-23 00:24:21,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 264 treesize of output 270 [2021-11-23 00:24:21,506 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 00:24:21,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 277 treesize of output 277 [2021-11-23 00:24:22,538 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:24:22,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 00:24:25,118 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#tps_given_cfg~0#1.base_7| Int) (|ULTIMATE.start_em28xx_dvb_fini_~dev#1.offset| Int) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#reset~0#1.base_7| Int) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#tuner_go~0#1.base_7| Int) (v_ArrVal_8481 (Array Int Int)) (v_ArrVal_8495 (Array Int Int)) (v_ArrVal_8484 (Array Int Int)) (v_ArrVal_8496 (Array Int Int)) (v_ArrVal_8482 (Array Int Int)) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#input_freq_cfg~0#1.base_7| Int) (v_ArrVal_8494 (Array Int Int)) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#agc_cfg~0#1.base_7| Int) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#rs_err_cfg~0#1.base_7| Int) (v_ArrVal_8478 (Array Int Int)) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#adc_ctl_1_cfg~0#1.base_7| Int) (v_ArrVal_8498 (Array Int Int)) (v_ArrVal_8479 (Array Int Int)) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#trl_nom_cfg~0#1.base_7| Int) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.base_6| Int) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.offset_6| Int) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#capt_range_cfg~0#1.base_7| Int)) (let ((.cse0 (select (store (store (store (store (store (store (store (store (store (store |c_#memory_int| |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.base_6| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.base_6|) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.offset_6| 137) (+ |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.offset_6| 1) 56) (+ |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.offset_6| 2) 44)) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#reset~0#1.base_7| v_ArrVal_8496) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#adc_ctl_1_cfg~0#1.base_7| v_ArrVal_8482) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#agc_cfg~0#1.base_7| v_ArrVal_8495) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#input_freq_cfg~0#1.base_7| v_ArrVal_8498) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#rs_err_cfg~0#1.base_7| v_ArrVal_8484) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#capt_range_cfg~0#1.base_7| v_ArrVal_8479) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#trl_nom_cfg~0#1.base_7| v_ArrVal_8494) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#tps_given_cfg~0#1.base_7| v_ArrVal_8481) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#tuner_go~0#1.base_7| v_ArrVal_8478) c_~dvb_ops_group0~0.base))) (or (= (mod (select .cse0 (+ 440 |ULTIMATE.start_em28xx_dvb_fini_~dev#1.offset|)) 256) 0) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#agc_cfg~0#1.base_7| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#capt_range_cfg~0#1.base_7| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#rs_err_cfg~0#1.base_7| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#reset~0#1.base_7| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.base_6| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#input_freq_cfg~0#1.base_7| |c_#StackHeapBarrier|) (< 0 (select (store (store (store (store (store (store (store |c_#valid| |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.base_6| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#reset~0#1.base_7| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#adc_ctl_1_cfg~0#1.base_7| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#agc_cfg~0#1.base_7| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#input_freq_cfg~0#1.base_7| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#rs_err_cfg~0#1.base_7| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#capt_range_cfg~0#1.base_7| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#trl_nom_cfg~0#1.base_7|)) (< 0 (mod (select .cse0 (+ 364 |ULTIMATE.start_em28xx_dvb_fini_~dev#1.offset|)) 256)) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#adc_ctl_1_cfg~0#1.base_7| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#tuner_go~0#1.base_7| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#tps_given_cfg~0#1.base_7| |c_#StackHeapBarrier|)))) is different from false [2021-11-23 00:24:36,212 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#tps_given_cfg~0#1.base_7| Int) (|ULTIMATE.start_em28xx_dvb_fini_~dev#1.offset| Int) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#reset~0#1.base_7| Int) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#tuner_go~0#1.base_7| Int) (v_ArrVal_8481 (Array Int Int)) (v_ArrVal_8495 (Array Int Int)) (v_ArrVal_8484 (Array Int Int)) (v_ArrVal_8496 (Array Int Int)) (v_ArrVal_8482 (Array Int Int)) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#input_freq_cfg~0#1.base_7| Int) (v_ArrVal_8494 (Array Int Int)) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#agc_cfg~0#1.base_7| Int) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#rs_err_cfg~0#1.base_7| Int) (v_ArrVal_8478 (Array Int Int)) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#adc_ctl_1_cfg~0#1.base_7| Int) (v_ArrVal_8498 (Array Int Int)) (v_ArrVal_8479 (Array Int Int)) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#trl_nom_cfg~0#1.base_7| Int) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.base_6| Int) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.offset_6| Int) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#capt_range_cfg~0#1.base_7| Int)) (let ((.cse0 (select (store (store (store (store (store (store (store (store (store (store |c_#memory_int| |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.base_6| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.base_6|) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.offset_6| 137) (+ |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.offset_6| 1) 56) (+ |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.offset_6| 2) 44)) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#reset~0#1.base_7| v_ArrVal_8496) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#adc_ctl_1_cfg~0#1.base_7| v_ArrVal_8482) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#agc_cfg~0#1.base_7| v_ArrVal_8495) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#input_freq_cfg~0#1.base_7| v_ArrVal_8498) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#rs_err_cfg~0#1.base_7| v_ArrVal_8484) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#capt_range_cfg~0#1.base_7| v_ArrVal_8479) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#trl_nom_cfg~0#1.base_7| v_ArrVal_8494) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#tps_given_cfg~0#1.base_7| v_ArrVal_8481) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#tuner_go~0#1.base_7| v_ArrVal_8478) |c_ULTIMATE.start_ldv_init_zalloc_#res#1.base|))) (or (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#agc_cfg~0#1.base_7| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#capt_range_cfg~0#1.base_7| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#rs_err_cfg~0#1.base_7| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#reset~0#1.base_7| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.base_6| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#input_freq_cfg~0#1.base_7| |c_#StackHeapBarrier|) (< 0 (select (store (store (store (store (store (store (store |c_#valid| |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.base_6| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#reset~0#1.base_7| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#adc_ctl_1_cfg~0#1.base_7| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#agc_cfg~0#1.base_7| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#input_freq_cfg~0#1.base_7| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#rs_err_cfg~0#1.base_7| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#capt_range_cfg~0#1.base_7| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#trl_nom_cfg~0#1.base_7|)) (< 0 (mod (select .cse0 (+ 364 |ULTIMATE.start_em28xx_dvb_fini_~dev#1.offset|)) 256)) (= (mod (select .cse0 (+ 440 |ULTIMATE.start_em28xx_dvb_fini_~dev#1.offset|)) 256) 0) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#adc_ctl_1_cfg~0#1.base_7| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#tuner_go~0#1.base_7| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#tps_given_cfg~0#1.base_7| |c_#StackHeapBarrier|)))) is different from false [2021-11-23 00:24:37,659 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#tps_given_cfg~0#1.base_7| Int) (|ULTIMATE.start_em28xx_dvb_fini_~dev#1.offset| Int) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#reset~0#1.base_7| Int) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#tuner_go~0#1.base_7| Int) (v_ArrVal_8481 (Array Int Int)) (v_ArrVal_8495 (Array Int Int)) (v_ArrVal_8484 (Array Int Int)) (v_ArrVal_8496 (Array Int Int)) (v_ArrVal_8482 (Array Int Int)) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#input_freq_cfg~0#1.base_7| Int) (v_ArrVal_8494 (Array Int Int)) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#agc_cfg~0#1.base_7| Int) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#rs_err_cfg~0#1.base_7| Int) (v_ArrVal_8478 (Array Int Int)) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#adc_ctl_1_cfg~0#1.base_7| Int) (v_ArrVal_8498 (Array Int Int)) (v_ArrVal_8479 (Array Int Int)) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#trl_nom_cfg~0#1.base_7| Int) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.base_6| Int) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.offset_6| Int) (|v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#capt_range_cfg~0#1.base_7| Int)) (let ((.cse0 (select (store (store (store (store (store (store (store (store (store (store |c_#memory_int| |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.base_6| (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.base_6|) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.offset_6| 137) (+ |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.offset_6| 1) 56) (+ |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.offset_6| 2) 44)) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#reset~0#1.base_7| v_ArrVal_8496) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#adc_ctl_1_cfg~0#1.base_7| v_ArrVal_8482) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#agc_cfg~0#1.base_7| v_ArrVal_8495) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#input_freq_cfg~0#1.base_7| v_ArrVal_8498) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#rs_err_cfg~0#1.base_7| v_ArrVal_8484) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#capt_range_cfg~0#1.base_7| v_ArrVal_8479) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#trl_nom_cfg~0#1.base_7| v_ArrVal_8494) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#tps_given_cfg~0#1.base_7| v_ArrVal_8481) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#tuner_go~0#1.base_7| v_ArrVal_8478) |c_ULTIMATE.start_ldv_init_zalloc_~p~2#1.base|))) (or (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#agc_cfg~0#1.base_7| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#capt_range_cfg~0#1.base_7| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#rs_err_cfg~0#1.base_7| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#reset~0#1.base_7| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.base_6| |c_#StackHeapBarrier|) (< 0 (mod (select .cse0 (+ 364 |ULTIMATE.start_em28xx_dvb_fini_~dev#1.offset|)) 256)) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#input_freq_cfg~0#1.base_7| |c_#StackHeapBarrier|) (< 0 (select (store (store (store (store (store (store (store |c_#valid| |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#clock_config~0#1.base_6| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#reset~0#1.base_7| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#adc_ctl_1_cfg~0#1.base_7| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#agc_cfg~0#1.base_7| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#input_freq_cfg~0#1.base_7| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#rs_err_cfg~0#1.base_7| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#capt_range_cfg~0#1.base_7| 1) |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#trl_nom_cfg~0#1.base_7|)) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#adc_ctl_1_cfg~0#1.base_7| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#tuner_go~0#1.base_7| |c_#StackHeapBarrier|) (<= |v_ULTIMATE.start_em28xx_mt352_terratec_xs_init_~#tps_given_cfg~0#1.base_7| |c_#StackHeapBarrier|) (= (mod (select .cse0 (+ 440 |ULTIMATE.start_em28xx_dvb_fini_~dev#1.offset|)) 256) 0)))) is different from false [2021-11-23 00:24:40,642 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-23 00:24:40,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444875766] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 00:24:40,642 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 00:24:40,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11] total 24 [2021-11-23 00:24:40,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806945135] [2021-11-23 00:24:40,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 00:24:40,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-23 00:24:40,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:24:40,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-23 00:24:40,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=353, Unknown=15, NotChecked=120, Total=552 [2021-11-23 00:24:40,644 INFO L87 Difference]: Start difference. First operand 13629 states and 20110 transitions. Second operand has 24 states, 24 states have (on average 6.5) internal successors, (156), 24 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:24:43,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:24:45,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:24:49,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:24:52,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:24:56,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:04,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:05,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:13,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:15,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:17,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:19,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:22,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:24,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:26,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:28,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:30,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:32,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:37,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:44,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:46,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:48,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:50,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:52,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:55,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:57,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:59,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:01,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:03,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:10,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:12,389 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:14,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:16,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:18,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:26,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:28,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:30,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:32,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:34,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:36,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:38,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:40,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:42,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:44,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:45,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:26:45,393 INFO L93 Difference]: Finished difference Result 38157 states and 56479 transitions. [2021-11-23 00:26:45,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-23 00:26:45,395 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.5) internal successors, (156), 24 states have internal predecessors, (156), 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 81 [2021-11-23 00:26:45,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:26:45,434 INFO L225 Difference]: With dead ends: 38157 [2021-11-23 00:26:45,434 INFO L226 Difference]: Without dead ends: 24535 [2021-11-23 00:26:45,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 157 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=349, Invalid=1128, Unknown=17, NotChecked=228, Total=1722 [2021-11-23 00:26:45,454 INFO L933 BasicCegarLoop]: 4497 mSDtfsCounter, 11360 mSDsluCounter, 68196 mSDsCounter, 0 mSdLazyCounter, 5191 mSolverCounterSat, 56 mSolverCounterUnsat, 35 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 118.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11360 SdHoareTripleChecker+Valid, 72693 SdHoareTripleChecker+Invalid, 15044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 5191 IncrementalHoareTripleChecker+Invalid, 35 IncrementalHoareTripleChecker+Unknown, 9762 IncrementalHoareTripleChecker+Unchecked, 121.7s IncrementalHoareTripleChecker+Time [2021-11-23 00:26:45,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11360 Valid, 72693 Invalid, 15044 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 5191 Invalid, 35 Unknown, 9762 Unchecked, 121.7s Time] [2021-11-23 00:26:45,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24535 states. [2021-11-23 00:26:45,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24535 to 15137. [2021-11-23 00:26:45,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15137 states, 15070 states have (on average 1.4714001327140014) internal successors, (22174), 15100 states have internal predecessors, (22174), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-23 00:26:45,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15137 states to 15137 states and 22230 transitions. [2021-11-23 00:26:45,829 INFO L78 Accepts]: Start accepts. Automaton has 15137 states and 22230 transitions. Word has length 81 [2021-11-23 00:26:45,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:26:45,829 INFO L470 AbstractCegarLoop]: Abstraction has 15137 states and 22230 transitions. [2021-11-23 00:26:45,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.5) internal successors, (156), 24 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:26:45,829 INFO L276 IsEmpty]: Start isEmpty. Operand 15137 states and 22230 transitions. [2021-11-23 00:26:45,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-23 00:26:45,831 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:26:45,832 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:26:45,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 00:26:46,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-23 00:26:46,047 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 00:26:46,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:26:46,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1088689001, now seen corresponding path program 1 times [2021-11-23 00:26:46,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:26:46,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261003450] [2021-11-23 00:26:46,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:26:46,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:47,044 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-23 00:26:47,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:26:47,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261003450] [2021-11-23 00:26:47,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261003450] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:26:47,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:26:47,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:26:47,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382809821] [2021-11-23 00:26:47,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:26:47,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:26:47,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:26:47,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:26:47,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:26:47,047 INFO L87 Difference]: Start difference. First operand 15137 states and 22230 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:26:47,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:26:47,668 INFO L93 Difference]: Finished difference Result 31245 states and 46002 transitions. [2021-11-23 00:26:47,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:26:47,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 92 [2021-11-23 00:26:47,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:26:47,705 INFO L225 Difference]: With dead ends: 31245 [2021-11-23 00:26:47,706 INFO L226 Difference]: Without dead ends: 16115 [2021-11-23 00:26:47,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:26:47,728 INFO L933 BasicCegarLoop]: 4533 mSDtfsCounter, 2835 mSDsluCounter, 1650 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2835 SdHoareTripleChecker+Valid, 6183 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 00:26:47,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2835 Valid, 6183 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 00:26:47,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16115 states. [2021-11-23 00:26:48,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16115 to 16109. [2021-11-23 00:26:48,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16109 states, 16042 states have (on average 1.4620371524747537) internal successors, (23454), 16072 states have internal predecessors, (23454), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-23 00:26:48,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16109 states to 16109 states and 23510 transitions. [2021-11-23 00:26:48,223 INFO L78 Accepts]: Start accepts. Automaton has 16109 states and 23510 transitions. Word has length 92 [2021-11-23 00:26:48,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:26:48,223 INFO L470 AbstractCegarLoop]: Abstraction has 16109 states and 23510 transitions. [2021-11-23 00:26:48,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:26:48,223 INFO L276 IsEmpty]: Start isEmpty. Operand 16109 states and 23510 transitions. [2021-11-23 00:26:48,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-23 00:26:48,227 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:26:48,227 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:26:48,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 00:26:48,227 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 00:26:48,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:26:48,228 INFO L85 PathProgramCache]: Analyzing trace with hash -96697633, now seen corresponding path program 1 times [2021-11-23 00:26:48,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:26:48,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722959473] [2021-11-23 00:26:48,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:26:48,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:27:20,329 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 00:27:20,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:27:20,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722959473] [2021-11-23 00:27:20,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722959473] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 00:27:20,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149030028] [2021-11-23 00:27:20,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:27:20,335 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 00:27:20,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 00:27:20,336 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) [2021-11-23 00:27:20,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 00:27:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:27:23,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 9987 conjuncts, 74 conjunts are in the unsatisfiable core [2021-11-23 00:27:23,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:27:23,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-23 00:27:23,624 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 00:27:24,145 INFO L354 Elim1Store]: treesize reduction 36, result has 12.2 percent of original size [2021-11-23 00:27:24,145 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 125 treesize of output 128 [2021-11-23 00:27:25,268 INFO L354 Elim1Store]: treesize reduction 1059, result has 14.5 percent of original size [2021-11-23 00:27:25,269 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 11 case distinctions, treesize of input 125 treesize of output 275 [2021-11-23 00:27:25,371 INFO L354 Elim1Store]: treesize reduction 64, result has 16.9 percent of original size [2021-11-23 00:27:25,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 264 treesize of output 270 [2021-11-23 00:27:25,452 INFO L354 Elim1Store]: treesize reduction 40, result has 18.4 percent of original size [2021-11-23 00:27:25,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 275 treesize of output 275 [2021-11-23 00:27:26,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 27 treesize of output 21 [2021-11-23 00:27:26,504 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 00:27:26,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 00:27:43,595 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 00:27:43,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149030028] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 00:27:43,595 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 00:27:43,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2021-11-23 00:27:43,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431813430] [2021-11-23 00:27:43,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 00:27:43,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-23 00:27:43,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:27:43,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-23 00:27:43,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=380, Unknown=20, NotChecked=0, Total=462 [2021-11-23 00:27:43,597 INFO L87 Difference]: Start difference. First operand 16109 states and 23510 transitions. Second operand has 22 states, 22 states have (on average 7.863636363636363) internal successors, (173), 22 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:27:47,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:27:49,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:27:50,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:27:52,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:27:56,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:27:57,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:27:59,837 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:01,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:03,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:05,204 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:06,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:08,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:09,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:12,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:13,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:14,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:20,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:22,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:24,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:26,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:28,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:30,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:33,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:35,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:37,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:39,365 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:41,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:43,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:28:58,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:00,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:02,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:04,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:06,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:08,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:11,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:13,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:15,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:17,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:19,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:21,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:28,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:30,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:32,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:34,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:36,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:38,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:46,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:48,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:50,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:52,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:55,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:57,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:29:59,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:30:01,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:30:03,480 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:30:05,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:30:07,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:30:09,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:30:10,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:30:10,248 INFO L93 Difference]: Finished difference Result 36508 states and 52999 transitions. [2021-11-23 00:30:10,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-23 00:30:10,249 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 7.863636363636363) internal successors, (173), 22 states have internal predecessors, (173), 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 96 [2021-11-23 00:30:10,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:30:10,283 INFO L225 Difference]: With dead ends: 36508 [2021-11-23 00:30:10,283 INFO L226 Difference]: Without dead ends: 20406 [2021-11-23 00:30:10,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=539, Invalid=1601, Unknown=22, NotChecked=0, Total=2162 [2021-11-23 00:30:10,305 INFO L933 BasicCegarLoop]: 4731 mSDtfsCounter, 3435 mSDsluCounter, 51854 mSDsCounter, 0 mSdLazyCounter, 4681 mSolverCounterSat, 230 mSolverCounterUnsat, 42 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 140.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3435 SdHoareTripleChecker+Valid, 56585 SdHoareTripleChecker+Invalid, 8368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 4681 IncrementalHoareTripleChecker+Invalid, 42 IncrementalHoareTripleChecker+Unknown, 3415 IncrementalHoareTripleChecker+Unchecked, 144.0s IncrementalHoareTripleChecker+Time [2021-11-23 00:30:10,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3435 Valid, 56585 Invalid, 8368 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [230 Valid, 4681 Invalid, 42 Unknown, 3415 Unchecked, 144.0s Time] [2021-11-23 00:30:10,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20406 states. [2021-11-23 00:30:10,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20406 to 16089. [2021-11-23 00:30:10,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16089 states, 16022 states have (on average 1.4571214579952565) internal successors, (23346), 16052 states have internal predecessors, (23346), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-23 00:30:10,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16089 states to 16089 states and 23402 transitions. [2021-11-23 00:30:10,736 INFO L78 Accepts]: Start accepts. Automaton has 16089 states and 23402 transitions. Word has length 96 [2021-11-23 00:30:10,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:30:10,736 INFO L470 AbstractCegarLoop]: Abstraction has 16089 states and 23402 transitions. [2021-11-23 00:30:10,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.863636363636363) internal successors, (173), 22 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:30:10,737 INFO L276 IsEmpty]: Start isEmpty. Operand 16089 states and 23402 transitions. [2021-11-23 00:30:10,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-23 00:30:10,740 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:30:10,740 INFO L514 BasicCegarLoop]: trace histogram [5, 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] [2021-11-23 00:30:10,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 00:30:10,943 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,SelfDestructingSolverStorable11 [2021-11-23 00:30:10,944 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 00:30:10,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:30:10,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1211955780, now seen corresponding path program 1 times [2021-11-23 00:30:10,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:30:10,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886061849] [2021-11-23 00:30:10,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:30:10,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:31:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:31:52,667 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 00:31:52,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:31:52,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886061849] [2021-11-23 00:31:52,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886061849] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:31:52,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:31:52,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-23 00:31:52,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851982692] [2021-11-23 00:31:52,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:31:52,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 00:31:52,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:31:52,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 00:31:52,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-23 00:31:52,668 INFO L87 Difference]: Start difference. First operand 16089 states and 23402 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:31:54,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:31:56,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:31:57,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:32:01,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:32:03,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:32:04,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:32:08,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:32:10,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:32:12,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:32:13,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15