./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bdbaacac7560cb4317515ea94aeb4341c343c1b3a78ea4f9610ad493958cf26e --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 17:31:19,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 17:31:19,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 17:31:19,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 17:31:19,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 17:31:20,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 17:31:20,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 17:31:20,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 17:31:20,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 17:31:20,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 17:31:20,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 17:31:20,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 17:31:20,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 17:31:20,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 17:31:20,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 17:31:20,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 17:31:20,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 17:31:20,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 17:31:20,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 17:31:20,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 17:31:20,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 17:31:20,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 17:31:20,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 17:31:20,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 17:31:20,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 17:31:20,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 17:31:20,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 17:31:20,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 17:31:20,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 17:31:20,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 17:31:20,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 17:31:20,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 17:31:20,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 17:31:20,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 17:31:20,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 17:31:20,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 17:31:20,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 17:31:20,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 17:31:20,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 17:31:20,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 17:31:20,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 17:31:20,042 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 17:31:20,066 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 17:31:20,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 17:31:20,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 17:31:20,067 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 17:31:20,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 17:31:20,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 17:31:20,073 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 17:31:20,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 17:31:20,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 17:31:20,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 17:31:20,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 17:31:20,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 17:31:20,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 17:31:20,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 17:31:20,075 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 17:31:20,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 17:31:20,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 17:31:20,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 17:31:20,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 17:31:20,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:31:20,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 17:31:20,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 17:31:20,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 17:31:20,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 17:31:20,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 17:31:20,077 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 17:31:20,077 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 17:31:20,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 17:31:20,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 17:31:20,078 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdbaacac7560cb4317515ea94aeb4341c343c1b3a78ea4f9610ad493958cf26e [2021-11-07 17:31:20,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 17:31:20,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 17:31:20,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 17:31:20,379 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 17:31:20,380 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 17:31:20,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i [2021-11-07 17:31:20,439 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e4e0fc9e/a69ed2aecada45a3ad1c627737cca7f2/FLAG60986e618 [2021-11-07 17:31:21,060 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 17:31:21,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i [2021-11-07 17:31:21,114 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e4e0fc9e/a69ed2aecada45a3ad1c627737cca7f2/FLAG60986e618 [2021-11-07 17:31:21,192 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e4e0fc9e/a69ed2aecada45a3ad1c627737cca7f2 [2021-11-07 17:31:21,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 17:31:21,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 17:31:21,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 17:31:21,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 17:31:21,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 17:31:21,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:31:21" (1/1) ... [2021-11-07 17:31:21,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a7caddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:21, skipping insertion in model container [2021-11-07 17:31:21,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:31:21" (1/1) ... [2021-11-07 17:31:21,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 17:31:21,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 17:31:23,307 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387186,387199] [2021-11-07 17:31:23,309 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387355,387368] [2021-11-07 17:31:23,310 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387522,387535] [2021-11-07 17:31:23,312 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387690,387703] [2021-11-07 17:31:23,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:31:23,380 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 17:31:23,633 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387186,387199] [2021-11-07 17:31:23,634 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387355,387368] [2021-11-07 17:31:23,651 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387522,387535] [2021-11-07 17:31:23,652 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387690,387703] [2021-11-07 17:31:23,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:31:23,851 INFO L208 MainTranslator]: Completed translation [2021-11-07 17:31:23,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:23 WrapperNode [2021-11-07 17:31:23,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 17:31:23,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 17:31:23,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 17:31:23,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 17:31:23,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:23" (1/1) ... [2021-11-07 17:31:23,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:23" (1/1) ... [2021-11-07 17:31:24,513 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 17:31:24,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 17:31:24,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 17:31:24,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 17:31:24,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:23" (1/1) ... [2021-11-07 17:31:24,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:23" (1/1) ... [2021-11-07 17:31:24,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:23" (1/1) ... [2021-11-07 17:31:24,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:23" (1/1) ... [2021-11-07 17:31:25,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:23" (1/1) ... [2021-11-07 17:31:25,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:23" (1/1) ... [2021-11-07 17:31:25,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:23" (1/1) ... [2021-11-07 17:31:25,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 17:31:25,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 17:31:25,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 17:31:25,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 17:31:25,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:23" (1/1) ... [2021-11-07 17:31:25,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:31:25,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 17:31:25,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 17:31:25,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 17:31:25,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 17:31:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 17:31:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 17:31:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 17:31:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 17:31:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 17:31:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 17:31:25,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 17:31:25,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 17:31:25,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 17:31:25,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 17:31:25,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 17:31:25,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 17:31:25,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 17:31:25,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 17:32:40,234 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 17:32:40,234 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-07 17:32:40,234 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 17:32:40,234 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 17:32:40,235 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 17:32:40,236 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 17:32:40,268 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 17:32:40,269 INFO L299 CfgBuilder]: Removed 5902 assume(true) statements. [2021-11-07 17:32:40,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:32:40 BoogieIcfgContainer [2021-11-07 17:32:40,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 17:32:40,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 17:32:40,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 17:32:40,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 17:32:40,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:31:21" (1/3) ... [2021-11-07 17:32:40,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3139011e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:32:40, skipping insertion in model container [2021-11-07 17:32:40,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:31:23" (2/3) ... [2021-11-07 17:32:40,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3139011e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:32:40, skipping insertion in model container [2021-11-07 17:32:40,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:32:40" (3/3) ... [2021-11-07 17:32:40,280 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i [2021-11-07 17:32:40,284 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 17:32:40,284 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 87 error locations. [2021-11-07 17:32:40,333 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 17:32:40,338 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 17:32:40,338 INFO L340 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2021-11-07 17:32:40,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 4676 states, 4589 states have (on average 1.2933100893440836) internal successors, (5935), 4675 states have internal predecessors, (5935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:40,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-07 17:32:40,444 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:40,445 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:32:40,445 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 17:32:40,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:40,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1147573545, now seen corresponding path program 1 times [2021-11-07 17:32:40,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:40,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533298306] [2021-11-07 17:32:40,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:40,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:41,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:32:41,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:41,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533298306] [2021-11-07 17:32:41,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533298306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:41,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:41,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:41,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207967855] [2021-11-07 17:32:41,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:41,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:32:41,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:41,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:32:41,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:41,170 INFO L87 Difference]: Start difference. First operand has 4676 states, 4589 states have (on average 1.2933100893440836) internal successors, (5935), 4675 states have internal predecessors, (5935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:43,265 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:32:43,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:43,716 INFO L93 Difference]: Finished difference Result 13536 states and 17176 transitions. [2021-11-07 17:32:43,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:32:43,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2021-11-07 17:32:43,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:43,764 INFO L225 Difference]: With dead ends: 13536 [2021-11-07 17:32:43,764 INFO L226 Difference]: Without dead ends: 8707 [2021-11-07 17:32:43,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.25ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:43,785 INFO L933 BasicCegarLoop]: 5783 mSDtfsCounter, 5424 mSDsluCounter, 5743 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2124.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5424 SdHoareTripleChecker+Valid, 11526 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.12ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2219.30ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:43,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5424 Valid, 11526 Invalid, 14 Unknown, 0 Unchecked, 34.12ms Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2219.30ms Time] [2021-11-07 17:32:43,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8707 states. [2021-11-07 17:32:43,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8707 to 8593. [2021-11-07 17:32:43,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8593 states, 8506 states have (on average 1.233599811897484) internal successors, (10493), 8592 states have internal predecessors, (10493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:44,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8593 states to 8593 states and 10493 transitions. [2021-11-07 17:32:44,018 INFO L78 Accepts]: Start accepts. Automaton has 8593 states and 10493 transitions. Word has length 63 [2021-11-07 17:32:44,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:44,020 INFO L470 AbstractCegarLoop]: Abstraction has 8593 states and 10493 transitions. [2021-11-07 17:32:44,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:44,021 INFO L276 IsEmpty]: Start isEmpty. Operand 8593 states and 10493 transitions. [2021-11-07 17:32:44,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-07 17:32:44,026 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:44,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:32:44,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 17:32:44,027 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 17:32:44,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:44,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1890311088, now seen corresponding path program 1 times [2021-11-07 17:32:44,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:44,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696453194] [2021-11-07 17:32:44,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:44,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:44,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:32:44,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:44,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696453194] [2021-11-07 17:32:44,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696453194] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:44,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:44,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:44,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905134468] [2021-11-07 17:32:44,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:44,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:32:44,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:44,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:32:44,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:44,324 INFO L87 Difference]: Start difference. First operand 8593 states and 10493 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:46,371 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:32:47,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:47,101 INFO L93 Difference]: Finished difference Result 24219 states and 29541 transitions. [2021-11-07 17:32:47,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:32:47,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2021-11-07 17:32:47,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:47,152 INFO L225 Difference]: With dead ends: 24219 [2021-11-07 17:32:47,154 INFO L226 Difference]: Without dead ends: 15758 [2021-11-07 17:32:47,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.53ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:47,176 INFO L933 BasicCegarLoop]: 5412 mSDtfsCounter, 5094 mSDsluCounter, 4742 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2201.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5094 SdHoareTripleChecker+Valid, 10154 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.07ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2467.29ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:47,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5094 Valid, 10154 Invalid, 52 Unknown, 0 Unchecked, 16.07ms Time], IncrementalHoareTripleChecker [14 Valid, 37 Invalid, 1 Unknown, 0 Unchecked, 2467.29ms Time] [2021-11-07 17:32:47,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15758 states. [2021-11-07 17:32:47,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15758 to 15076. [2021-11-07 17:32:47,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15076 states, 14989 states have (on average 1.2341717259323504) internal successors, (18499), 15075 states have internal predecessors, (18499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:47,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15076 states to 15076 states and 18499 transitions. [2021-11-07 17:32:47,809 INFO L78 Accepts]: Start accepts. Automaton has 15076 states and 18499 transitions. Word has length 66 [2021-11-07 17:32:47,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:47,809 INFO L470 AbstractCegarLoop]: Abstraction has 15076 states and 18499 transitions. [2021-11-07 17:32:47,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:47,810 INFO L276 IsEmpty]: Start isEmpty. Operand 15076 states and 18499 transitions. [2021-11-07 17:32:47,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 17:32:47,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:47,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:32:47,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 17:32:47,811 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 17:32:47,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:47,812 INFO L85 PathProgramCache]: Analyzing trace with hash 732124952, now seen corresponding path program 1 times [2021-11-07 17:32:47,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:47,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729146453] [2021-11-07 17:32:47,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:47,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:47,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:32:47,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:47,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729146453] [2021-11-07 17:32:47,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729146453] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:47,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:47,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:47,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091202549] [2021-11-07 17:32:47,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:47,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:32:47,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:47,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:32:47,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:47,998 INFO L87 Difference]: Start difference. First operand 15076 states and 18499 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:50,044 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:32:51,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:51,086 INFO L93 Difference]: Finished difference Result 37618 states and 46152 transitions. [2021-11-07 17:32:51,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:32:51,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-07 17:32:51,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:51,254 INFO L225 Difference]: With dead ends: 37618 [2021-11-07 17:32:51,255 INFO L226 Difference]: Without dead ends: 22674 [2021-11-07 17:32:51,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.40ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:51,282 INFO L933 BasicCegarLoop]: 5417 mSDtfsCounter, 2770 mSDsluCounter, 5302 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2399.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2770 SdHoareTripleChecker+Valid, 10719 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.26ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2648.69ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:51,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2770 Valid, 10719 Invalid, 119 Unknown, 0 Unchecked, 11.26ms Time], IncrementalHoareTripleChecker [9 Valid, 109 Invalid, 1 Unknown, 0 Unchecked, 2648.69ms Time] [2021-11-07 17:32:51,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22674 states. [2021-11-07 17:32:51,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22674 to 21970. [2021-11-07 17:32:51,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21970 states, 21883 states have (on average 1.2333318100808848) internal successors, (26989), 21969 states have internal predecessors, (26989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:51,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21970 states to 21970 states and 26989 transitions. [2021-11-07 17:32:51,854 INFO L78 Accepts]: Start accepts. Automaton has 21970 states and 26989 transitions. Word has length 69 [2021-11-07 17:32:51,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:51,854 INFO L470 AbstractCegarLoop]: Abstraction has 21970 states and 26989 transitions. [2021-11-07 17:32:51,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:51,855 INFO L276 IsEmpty]: Start isEmpty. Operand 21970 states and 26989 transitions. [2021-11-07 17:32:51,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 17:32:51,857 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:51,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:32:51,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 17:32:51,859 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr75ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 17:32:51,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:51,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1946669987, now seen corresponding path program 1 times [2021-11-07 17:32:51,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:51,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948438503] [2021-11-07 17:32:51,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:51,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:52,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:32:52,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:52,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948438503] [2021-11-07 17:32:52,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948438503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:52,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:52,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:52,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129652706] [2021-11-07 17:32:52,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:52,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:32:52,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:52,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:32:52,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:52,092 INFO L87 Difference]: Start difference. First operand 21970 states and 26989 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:54,138 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:32:54,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:54,888 INFO L93 Difference]: Finished difference Result 37340 states and 45885 transitions. [2021-11-07 17:32:54,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:32:54,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-07 17:32:54,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:54,949 INFO L225 Difference]: With dead ends: 37340 [2021-11-07 17:32:54,950 INFO L226 Difference]: Without dead ends: 15502 [2021-11-07 17:32:54,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.10ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:54,987 INFO L933 BasicCegarLoop]: 8071 mSDtfsCounter, 2849 mSDsluCounter, 5309 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2282.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2849 SdHoareTripleChecker+Valid, 13380 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.73ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2478.07ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:54,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2849 Valid, 13380 Invalid, 94 Unknown, 0 Unchecked, 7.73ms Time], IncrementalHoareTripleChecker [19 Valid, 74 Invalid, 1 Unknown, 0 Unchecked, 2478.07ms Time] [2021-11-07 17:32:55,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15502 states. [2021-11-07 17:32:55,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15502 to 15342. [2021-11-07 17:32:55,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15342 states, 15255 states have (on average 1.235136020976729) internal successors, (18842), 15341 states have internal predecessors, (18842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:55,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15342 states to 15342 states and 18842 transitions. [2021-11-07 17:32:55,445 INFO L78 Accepts]: Start accepts. Automaton has 15342 states and 18842 transitions. Word has length 70 [2021-11-07 17:32:55,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:55,446 INFO L470 AbstractCegarLoop]: Abstraction has 15342 states and 18842 transitions. [2021-11-07 17:32:55,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:55,446 INFO L276 IsEmpty]: Start isEmpty. Operand 15342 states and 18842 transitions. [2021-11-07 17:32:55,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-07 17:32:55,447 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:55,447 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:32:55,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 17:32:55,448 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 17:32:55,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:55,448 INFO L85 PathProgramCache]: Analyzing trace with hash 37324820, now seen corresponding path program 1 times [2021-11-07 17:32:55,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:55,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777498228] [2021-11-07 17:32:55,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:55,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:55,669 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:32:55,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:55,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777498228] [2021-11-07 17:32:55,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777498228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:55,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:55,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:55,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207703069] [2021-11-07 17:32:55,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:55,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:32:55,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:55,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:32:55,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:55,676 INFO L87 Difference]: Start difference. First operand 15342 states and 18842 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:57,724 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:32:58,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:32:58,424 INFO L93 Difference]: Finished difference Result 45376 states and 55808 transitions. [2021-11-07 17:32:58,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:32:58,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 88 [2021-11-07 17:32:58,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:32:58,497 INFO L225 Difference]: With dead ends: 45376 [2021-11-07 17:32:58,498 INFO L226 Difference]: Without dead ends: 30204 [2021-11-07 17:32:58,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.59ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:32:58,546 INFO L933 BasicCegarLoop]: 5464 mSDtfsCounter, 5184 mSDsluCounter, 5350 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2069.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5184 SdHoareTripleChecker+Valid, 10814 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.47ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2171.08ms IncrementalHoareTripleChecker+Time [2021-11-07 17:32:58,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5184 Valid, 10814 Invalid, 10 Unknown, 0 Unchecked, 8.47ms Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 1 Unknown, 0 Unchecked, 2171.08ms Time] [2021-11-07 17:32:58,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30204 states. [2021-11-07 17:32:59,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30204 to 30076. [2021-11-07 17:32:59,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30076 states, 29989 states have (on average 1.2363199839941312) internal successors, (37076), 30075 states have internal predecessors, (37076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:59,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30076 states to 30076 states and 37076 transitions. [2021-11-07 17:32:59,349 INFO L78 Accepts]: Start accepts. Automaton has 30076 states and 37076 transitions. Word has length 88 [2021-11-07 17:32:59,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:32:59,350 INFO L470 AbstractCegarLoop]: Abstraction has 30076 states and 37076 transitions. [2021-11-07 17:32:59,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:32:59,351 INFO L276 IsEmpty]: Start isEmpty. Operand 30076 states and 37076 transitions. [2021-11-07 17:32:59,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-07 17:32:59,354 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:32:59,355 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:32:59,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 17:32:59,355 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 17:32:59,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:32:59,356 INFO L85 PathProgramCache]: Analyzing trace with hash 295490258, now seen corresponding path program 1 times [2021-11-07 17:32:59,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:32:59,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125454143] [2021-11-07 17:32:59,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:32:59,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:32:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:32:59,861 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:32:59,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:32:59,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125454143] [2021-11-07 17:32:59,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125454143] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:32:59,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:32:59,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:32:59,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977428845] [2021-11-07 17:32:59,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:32:59,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:32:59,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:32:59,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:32:59,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:32:59,862 INFO L87 Difference]: Start difference. First operand 30076 states and 37076 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:00,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:33:00,552 INFO L93 Difference]: Finished difference Result 30076 states and 37076 transitions. [2021-11-07 17:33:00,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:33:00,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 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 88 [2021-11-07 17:33:00,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:33:00,607 INFO L225 Difference]: With dead ends: 30076 [2021-11-07 17:33:00,607 INFO L226 Difference]: Without dead ends: 30072 [2021-11-07 17:33:00,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 111.14ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:33:00,621 INFO L933 BasicCegarLoop]: 5419 mSDtfsCounter, 5345 mSDsluCounter, 5337 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 227.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5345 SdHoareTripleChecker+Valid, 10756 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.75ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 252.35ms IncrementalHoareTripleChecker+Time [2021-11-07 17:33:00,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5345 Valid, 10756 Invalid, 88 Unknown, 0 Unchecked, 12.75ms Time], IncrementalHoareTripleChecker [28 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 252.35ms Time] [2021-11-07 17:33:00,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30072 states. [2021-11-07 17:33:01,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30072 to 30072. [2021-11-07 17:33:01,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30072 states, 29987 states have (on average 1.2362690499216327) internal successors, (37072), 30071 states have internal predecessors, (37072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:01,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30072 states to 30072 states and 37072 transitions. [2021-11-07 17:33:01,606 INFO L78 Accepts]: Start accepts. Automaton has 30072 states and 37072 transitions. Word has length 88 [2021-11-07 17:33:01,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:33:01,607 INFO L470 AbstractCegarLoop]: Abstraction has 30072 states and 37072 transitions. [2021-11-07 17:33:01,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:01,607 INFO L276 IsEmpty]: Start isEmpty. Operand 30072 states and 37072 transitions. [2021-11-07 17:33:01,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-07 17:33:01,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:33:01,610 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:33:01,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 17:33:01,610 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 17:33:01,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:33:01,611 INFO L85 PathProgramCache]: Analyzing trace with hash 498443381, now seen corresponding path program 1 times [2021-11-07 17:33:01,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:33:01,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748927982] [2021-11-07 17:33:01,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:33:01,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:33:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:33:01,951 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:33:01,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:33:01,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748927982] [2021-11-07 17:33:01,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748927982] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:33:01,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:33:01,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:33:01,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114559168] [2021-11-07 17:33:01,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:33:01,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:33:01,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:33:01,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:33:01,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:33:01,953 INFO L87 Difference]: Start difference. First operand 30072 states and 37072 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:02,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:33:02,679 INFO L93 Difference]: Finished difference Result 30072 states and 37072 transitions. [2021-11-07 17:33:02,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:33:02,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 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 90 [2021-11-07 17:33:02,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:33:02,746 INFO L225 Difference]: With dead ends: 30072 [2021-11-07 17:33:02,746 INFO L226 Difference]: Without dead ends: 30068 [2021-11-07 17:33:02,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 58.20ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:33:02,762 INFO L933 BasicCegarLoop]: 5415 mSDtfsCounter, 5337 mSDsluCounter, 5335 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 211.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5337 SdHoareTripleChecker+Valid, 10750 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.17ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 234.67ms IncrementalHoareTripleChecker+Time [2021-11-07 17:33:02,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5337 Valid, 10750 Invalid, 88 Unknown, 0 Unchecked, 16.17ms Time], IncrementalHoareTripleChecker [30 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 234.67ms Time] [2021-11-07 17:33:02,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30068 states. [2021-11-07 17:33:03,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30068 to 30068. [2021-11-07 17:33:03,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30068 states, 29985 states have (on average 1.2362181090545272) internal successors, (37068), 30067 states have internal predecessors, (37068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:03,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30068 states to 30068 states and 37068 transitions. [2021-11-07 17:33:03,627 INFO L78 Accepts]: Start accepts. Automaton has 30068 states and 37068 transitions. Word has length 90 [2021-11-07 17:33:03,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:33:03,628 INFO L470 AbstractCegarLoop]: Abstraction has 30068 states and 37068 transitions. [2021-11-07 17:33:03,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:03,628 INFO L276 IsEmpty]: Start isEmpty. Operand 30068 states and 37068 transitions. [2021-11-07 17:33:03,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-07 17:33:03,633 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:33:03,633 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:33:03,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 17:33:03,634 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 17:33:03,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:33:03,634 INFO L85 PathProgramCache]: Analyzing trace with hash -2032100712, now seen corresponding path program 1 times [2021-11-07 17:33:03,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:33:03,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860384136] [2021-11-07 17:33:03,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:33:03,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:33:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:33:03,980 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:33:03,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:33:03,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860384136] [2021-11-07 17:33:03,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860384136] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:33:03,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:33:03,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:33:03,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805168569] [2021-11-07 17:33:03,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:33:03,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:33:03,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:33:03,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:33:03,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:33:03,982 INFO L87 Difference]: Start difference. First operand 30068 states and 37068 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:04,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:33:04,920 INFO L93 Difference]: Finished difference Result 30068 states and 37068 transitions. [2021-11-07 17:33:04,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:33:04,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 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 [2021-11-07 17:33:04,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:33:04,973 INFO L225 Difference]: With dead ends: 30068 [2021-11-07 17:33:04,974 INFO L226 Difference]: Without dead ends: 30064 [2021-11-07 17:33:04,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 72.72ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:33:04,987 INFO L933 BasicCegarLoop]: 5411 mSDtfsCounter, 5331 mSDsluCounter, 5333 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 246.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5331 SdHoareTripleChecker+Valid, 10744 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.70ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 266.29ms IncrementalHoareTripleChecker+Time [2021-11-07 17:33:04,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5331 Valid, 10744 Invalid, 86 Unknown, 0 Unchecked, 15.70ms Time], IncrementalHoareTripleChecker [30 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 266.29ms Time] [2021-11-07 17:33:05,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30064 states. [2021-11-07 17:33:05,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30064 to 30064. [2021-11-07 17:33:05,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30064 states, 29983 states have (on average 1.236167161391455) internal successors, (37064), 30063 states have internal predecessors, (37064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:05,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30064 states to 30064 states and 37064 transitions. [2021-11-07 17:33:05,773 INFO L78 Accepts]: Start accepts. Automaton has 30064 states and 37064 transitions. Word has length 92 [2021-11-07 17:33:05,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:33:05,773 INFO L470 AbstractCegarLoop]: Abstraction has 30064 states and 37064 transitions. [2021-11-07 17:33:05,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:05,773 INFO L276 IsEmpty]: Start isEmpty. Operand 30064 states and 37064 transitions. [2021-11-07 17:33:05,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-07 17:33:05,775 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:33:05,775 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:33:05,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 17:33:05,775 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 17:33:05,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:33:05,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1361483067, now seen corresponding path program 1 times [2021-11-07 17:33:05,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:33:05,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175266041] [2021-11-07 17:33:05,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:33:05,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:33:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:33:06,083 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:33:06,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:33:06,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175266041] [2021-11-07 17:33:06,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175266041] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:33:06,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:33:06,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:33:06,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926392251] [2021-11-07 17:33:06,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:33:06,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:33:06,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:33:06,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:33:06,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:33:06,085 INFO L87 Difference]: Start difference. First operand 30064 states and 37064 transitions. Second operand has 4 states, 4 states have (on average 22.25) 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) [2021-11-07 17:33:07,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:33:07,144 INFO L93 Difference]: Finished difference Result 30064 states and 37064 transitions. [2021-11-07 17:33:07,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:33:07,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) 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 94 [2021-11-07 17:33:07,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:33:07,208 INFO L225 Difference]: With dead ends: 30064 [2021-11-07 17:33:07,209 INFO L226 Difference]: Without dead ends: 30060 [2021-11-07 17:33:07,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 61.65ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:33:07,228 INFO L933 BasicCegarLoop]: 5407 mSDtfsCounter, 5325 mSDsluCounter, 5331 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 239.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5325 SdHoareTripleChecker+Valid, 10738 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.19ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 259.08ms IncrementalHoareTripleChecker+Time [2021-11-07 17:33:07,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5325 Valid, 10738 Invalid, 84 Unknown, 0 Unchecked, 12.19ms Time], IncrementalHoareTripleChecker [30 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 259.08ms Time] [2021-11-07 17:33:07,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30060 states. [2021-11-07 17:33:08,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30060 to 30060. [2021-11-07 17:33:08,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30060 states, 29981 states have (on average 1.2361162069310563) internal successors, (37060), 30059 states have internal predecessors, (37060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:08,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30060 states to 30060 states and 37060 transitions. [2021-11-07 17:33:08,129 INFO L78 Accepts]: Start accepts. Automaton has 30060 states and 37060 transitions. Word has length 94 [2021-11-07 17:33:08,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:33:08,130 INFO L470 AbstractCegarLoop]: Abstraction has 30060 states and 37060 transitions. [2021-11-07 17:33:08,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) 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) [2021-11-07 17:33:08,130 INFO L276 IsEmpty]: Start isEmpty. Operand 30060 states and 37060 transitions. [2021-11-07 17:33:08,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-07 17:33:08,132 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:33:08,133 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:33:08,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 17:33:08,133 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 17:33:08,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:33:08,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1579649954, now seen corresponding path program 1 times [2021-11-07 17:33:08,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:33:08,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392809581] [2021-11-07 17:33:08,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:33:08,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:33:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:33:08,407 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:33:08,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:33:08,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392809581] [2021-11-07 17:33:08,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392809581] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:33:08,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:33:08,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:33:08,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414787325] [2021-11-07 17:33:08,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:33:08,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:33:08,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:33:08,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:33:08,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:33:08,409 INFO L87 Difference]: Start difference. First operand 30060 states and 37060 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:09,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:33:09,305 INFO L93 Difference]: Finished difference Result 30060 states and 37060 transitions. [2021-11-07 17:33:09,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:33:09,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 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 [2021-11-07 17:33:09,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:33:09,353 INFO L225 Difference]: With dead ends: 30060 [2021-11-07 17:33:09,354 INFO L226 Difference]: Without dead ends: 30056 [2021-11-07 17:33:09,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 64.75ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:33:09,370 INFO L933 BasicCegarLoop]: 5403 mSDtfsCounter, 5319 mSDsluCounter, 5329 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 205.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5319 SdHoareTripleChecker+Valid, 10732 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.51ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 222.53ms IncrementalHoareTripleChecker+Time [2021-11-07 17:33:09,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5319 Valid, 10732 Invalid, 82 Unknown, 0 Unchecked, 9.51ms Time], IncrementalHoareTripleChecker [30 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 222.53ms Time] [2021-11-07 17:33:09,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30056 states. [2021-11-07 17:33:10,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30056 to 30056. [2021-11-07 17:33:10,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30056 states, 29979 states have (on average 1.2360652456719703) internal successors, (37056), 30055 states have internal predecessors, (37056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:10,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30056 states to 30056 states and 37056 transitions. [2021-11-07 17:33:10,425 INFO L78 Accepts]: Start accepts. Automaton has 30056 states and 37056 transitions. Word has length 96 [2021-11-07 17:33:10,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:33:10,426 INFO L470 AbstractCegarLoop]: Abstraction has 30056 states and 37056 transitions. [2021-11-07 17:33:10,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:10,426 INFO L276 IsEmpty]: Start isEmpty. Operand 30056 states and 37056 transitions. [2021-11-07 17:33:10,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-07 17:33:10,428 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:33:10,428 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:33:10,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 17:33:10,428 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 17:33:10,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:33:10,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1920002047, now seen corresponding path program 1 times [2021-11-07 17:33:10,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:33:10,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607101221] [2021-11-07 17:33:10,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:33:10,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:33:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:33:10,655 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:33:10,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:33:10,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607101221] [2021-11-07 17:33:10,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607101221] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:33:10,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:33:10,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:33:10,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485086866] [2021-11-07 17:33:10,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:33:10,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:33:10,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:33:10,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:33:10,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:33:10,656 INFO L87 Difference]: Start difference. First operand 30056 states and 37056 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:11,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:33:11,445 INFO L93 Difference]: Finished difference Result 30056 states and 37056 transitions. [2021-11-07 17:33:11,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:33:11,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 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 98 [2021-11-07 17:33:11,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:33:11,494 INFO L225 Difference]: With dead ends: 30056 [2021-11-07 17:33:11,494 INFO L226 Difference]: Without dead ends: 30052 [2021-11-07 17:33:11,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.01ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:33:11,507 INFO L933 BasicCegarLoop]: 5399 mSDtfsCounter, 5313 mSDsluCounter, 5327 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 162.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5313 SdHoareTripleChecker+Valid, 10726 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.30ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 176.85ms IncrementalHoareTripleChecker+Time [2021-11-07 17:33:11,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5313 Valid, 10726 Invalid, 80 Unknown, 0 Unchecked, 8.30ms Time], IncrementalHoareTripleChecker [30 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 176.85ms Time] [2021-11-07 17:33:11,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30052 states. [2021-11-07 17:33:12,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30052 to 30052. [2021-11-07 17:33:12,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30052 states, 29977 states have (on average 1.2360142776128364) internal successors, (37052), 30051 states have internal predecessors, (37052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:12,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30052 states to 30052 states and 37052 transitions. [2021-11-07 17:33:12,433 INFO L78 Accepts]: Start accepts. Automaton has 30052 states and 37052 transitions. Word has length 98 [2021-11-07 17:33:12,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:33:12,434 INFO L470 AbstractCegarLoop]: Abstraction has 30052 states and 37052 transitions. [2021-11-07 17:33:12,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:12,434 INFO L276 IsEmpty]: Start isEmpty. Operand 30052 states and 37052 transitions. [2021-11-07 17:33:12,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-07 17:33:12,435 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:33:12,436 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:33:12,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 17:33:12,436 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr75ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 17:33:12,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:33:12,437 INFO L85 PathProgramCache]: Analyzing trace with hash -873464710, now seen corresponding path program 1 times [2021-11-07 17:33:12,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:33:12,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683905205] [2021-11-07 17:33:12,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:33:12,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:33:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:33:12,661 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:33:12,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:33:12,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683905205] [2021-11-07 17:33:12,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683905205] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:33:12,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:33:12,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:33:12,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743373312] [2021-11-07 17:33:12,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:33:12,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:33:12,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:33:12,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:33:12,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:33:12,664 INFO L87 Difference]: Start difference. First operand 30052 states and 37052 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:14,710 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:33:16,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:33:16,369 INFO L93 Difference]: Finished difference Result 68166 states and 84215 transitions. [2021-11-07 17:33:16,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:33:16,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 98 [2021-11-07 17:33:16,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:33:16,439 INFO L225 Difference]: With dead ends: 68166 [2021-11-07 17:33:16,439 INFO L226 Difference]: Without dead ends: 38284 [2021-11-07 17:33:16,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.83ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:33:16,478 INFO L933 BasicCegarLoop]: 8045 mSDtfsCounter, 2831 mSDsluCounter, 5282 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2301.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2831 SdHoareTripleChecker+Valid, 13327 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.21ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2534.55ms IncrementalHoareTripleChecker+Time [2021-11-07 17:33:16,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2831 Valid, 13327 Invalid, 94 Unknown, 0 Unchecked, 10.21ms Time], IncrementalHoareTripleChecker [19 Valid, 74 Invalid, 1 Unknown, 0 Unchecked, 2534.55ms Time] [2021-11-07 17:33:16,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38284 states. [2021-11-07 17:33:17,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38284 to 38134. [2021-11-07 17:33:17,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38134 states, 38059 states have (on average 1.2382879213852176) internal successors, (47128), 38133 states have internal predecessors, (47128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:17,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38134 states to 38134 states and 47128 transitions. [2021-11-07 17:33:17,507 INFO L78 Accepts]: Start accepts. Automaton has 38134 states and 47128 transitions. Word has length 98 [2021-11-07 17:33:17,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:33:17,508 INFO L470 AbstractCegarLoop]: Abstraction has 38134 states and 47128 transitions. [2021-11-07 17:33:17,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:17,508 INFO L276 IsEmpty]: Start isEmpty. Operand 38134 states and 47128 transitions. [2021-11-07 17:33:17,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-07 17:33:17,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:33:17,510 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:33:17,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 17:33:17,510 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 17:33:17,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:33:17,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1714118692, now seen corresponding path program 1 times [2021-11-07 17:33:17,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:33:17,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876060515] [2021-11-07 17:33:17,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:33:17,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:33:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:33:17,718 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:33:17,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:33:17,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876060515] [2021-11-07 17:33:17,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876060515] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:33:17,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:33:17,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:33:17,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496143019] [2021-11-07 17:33:17,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:33:17,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:33:17,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:33:17,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:33:17,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:33:17,719 INFO L87 Difference]: Start difference. First operand 38134 states and 47128 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:19,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:33:19,535 INFO L93 Difference]: Finished difference Result 38134 states and 47128 transitions. [2021-11-07 17:33:19,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:33:19,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 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 100 [2021-11-07 17:33:19,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:33:19,593 INFO L225 Difference]: With dead ends: 38134 [2021-11-07 17:33:19,593 INFO L226 Difference]: Without dead ends: 38130 [2021-11-07 17:33:19,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.48ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:33:19,607 INFO L933 BasicCegarLoop]: 5339 mSDtfsCounter, 3226 mSDsluCounter, 7235 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 891.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3226 SdHoareTripleChecker+Valid, 12574 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.35ms SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 947.62ms IncrementalHoareTripleChecker+Time [2021-11-07 17:33:19,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3226 Valid, 12574 Invalid, 305 Unknown, 0 Unchecked, 9.35ms Time], IncrementalHoareTripleChecker [59 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 947.62ms Time] [2021-11-07 17:33:19,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38130 states. [2021-11-07 17:33:20,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38130 to 38130. [2021-11-07 17:33:20,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38130 states, 38057 states have (on average 1.2382478913209134) internal successors, (47124), 38129 states have internal predecessors, (47124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:20,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38130 states to 38130 states and 47124 transitions. [2021-11-07 17:33:20,772 INFO L78 Accepts]: Start accepts. Automaton has 38130 states and 47124 transitions. Word has length 100 [2021-11-07 17:33:20,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:33:20,772 INFO L470 AbstractCegarLoop]: Abstraction has 38130 states and 47124 transitions. [2021-11-07 17:33:20,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:20,773 INFO L276 IsEmpty]: Start isEmpty. Operand 38130 states and 47124 transitions. [2021-11-07 17:33:20,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-07 17:33:20,774 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:33:20,774 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:33:20,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 17:33:20,774 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 17:33:20,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:33:20,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1999229753, now seen corresponding path program 1 times [2021-11-07 17:33:20,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:33:20,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434646662] [2021-11-07 17:33:20,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:33:20,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:33:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:33:21,028 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:33:21,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:33:21,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434646662] [2021-11-07 17:33:21,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434646662] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:33:21,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:33:21,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:33:21,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37212176] [2021-11-07 17:33:21,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:33:21,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:33:21,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:33:21,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:33:21,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:33:21,030 INFO L87 Difference]: Start difference. First operand 38130 states and 47124 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:22,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:33:22,087 INFO L93 Difference]: Finished difference Result 38130 states and 47124 transitions. [2021-11-07 17:33:22,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:33:22,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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 102 [2021-11-07 17:33:22,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:33:22,148 INFO L225 Difference]: With dead ends: 38130 [2021-11-07 17:33:22,148 INFO L226 Difference]: Without dead ends: 38126 [2021-11-07 17:33:22,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 91.86ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:33:22,166 INFO L933 BasicCegarLoop]: 5391 mSDtfsCounter, 5301 mSDsluCounter, 5323 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 187.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5301 SdHoareTripleChecker+Valid, 10714 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.10ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 201.50ms IncrementalHoareTripleChecker+Time [2021-11-07 17:33:22,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5301 Valid, 10714 Invalid, 76 Unknown, 0 Unchecked, 8.10ms Time], IncrementalHoareTripleChecker [30 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 201.50ms Time] [2021-11-07 17:33:22,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38126 states. [2021-11-07 17:33:23,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38126 to 38126. [2021-11-07 17:33:23,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38126 states, 38055 states have (on average 1.238207857049008) internal successors, (47120), 38125 states have internal predecessors, (47120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:23,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38126 states to 38126 states and 47120 transitions. [2021-11-07 17:33:23,383 INFO L78 Accepts]: Start accepts. Automaton has 38126 states and 47120 transitions. Word has length 102 [2021-11-07 17:33:23,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:33:23,384 INFO L470 AbstractCegarLoop]: Abstraction has 38126 states and 47120 transitions. [2021-11-07 17:33:23,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:23,384 INFO L276 IsEmpty]: Start isEmpty. Operand 38126 states and 47120 transitions. [2021-11-07 17:33:23,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-07 17:33:23,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:33:23,385 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:33:23,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 17:33:23,386 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 17:33:23,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:33:23,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1409262102, now seen corresponding path program 1 times [2021-11-07 17:33:23,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:33:23,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815953320] [2021-11-07 17:33:23,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:33:23,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:33:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:33:23,624 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:33:23,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:33:23,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815953320] [2021-11-07 17:33:23,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815953320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:33:23,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:33:23,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:33:23,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097678866] [2021-11-07 17:33:23,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:33:23,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:33:23,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:33:23,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:33:23,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:33:23,626 INFO L87 Difference]: Start difference. First operand 38126 states and 47120 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:24,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:33:24,649 INFO L93 Difference]: Finished difference Result 38126 states and 47120 transitions. [2021-11-07 17:33:24,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:33:24,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 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 104 [2021-11-07 17:33:24,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:33:24,706 INFO L225 Difference]: With dead ends: 38126 [2021-11-07 17:33:24,706 INFO L226 Difference]: Without dead ends: 38122 [2021-11-07 17:33:24,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 60.89ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:33:24,722 INFO L933 BasicCegarLoop]: 5387 mSDtfsCounter, 5295 mSDsluCounter, 5321 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 146.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5295 SdHoareTripleChecker+Valid, 10708 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.85ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 159.73ms IncrementalHoareTripleChecker+Time [2021-11-07 17:33:24,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5295 Valid, 10708 Invalid, 74 Unknown, 0 Unchecked, 7.85ms Time], IncrementalHoareTripleChecker [30 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 159.73ms Time] [2021-11-07 17:33:24,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38122 states. [2021-11-07 17:33:25,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38122 to 38122. [2021-11-07 17:33:25,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38122 states, 38053 states have (on average 1.2381678185688383) internal successors, (47116), 38121 states have internal predecessors, (47116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:25,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38122 states to 38122 states and 47116 transitions. [2021-11-07 17:33:25,958 INFO L78 Accepts]: Start accepts. Automaton has 38122 states and 47116 transitions. Word has length 104 [2021-11-07 17:33:25,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:33:25,959 INFO L470 AbstractCegarLoop]: Abstraction has 38122 states and 47116 transitions. [2021-11-07 17:33:25,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:25,959 INFO L276 IsEmpty]: Start isEmpty. Operand 38122 states and 47116 transitions. [2021-11-07 17:33:25,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-07 17:33:25,960 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:33:25,960 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:33:25,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-07 17:33:25,961 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 17:33:25,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:33:25,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1386032243, now seen corresponding path program 1 times [2021-11-07 17:33:25,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:33:25,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371017767] [2021-11-07 17:33:25,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:33:25,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:33:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:33:26,166 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:33:26,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:33:26,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371017767] [2021-11-07 17:33:26,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371017767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:33:26,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:33:26,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:33:26,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370292581] [2021-11-07 17:33:26,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:33:26,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:33:26,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:33:26,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:33:26,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:33:26,167 INFO L87 Difference]: Start difference. First operand 38122 states and 47116 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:27,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:33:27,379 INFO L93 Difference]: Finished difference Result 38122 states and 47116 transitions. [2021-11-07 17:33:27,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:33:27,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-11-07 17:33:27,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:33:27,439 INFO L225 Difference]: With dead ends: 38122 [2021-11-07 17:33:27,439 INFO L226 Difference]: Without dead ends: 38118 [2021-11-07 17:33:27,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.37ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:33:27,456 INFO L933 BasicCegarLoop]: 5383 mSDtfsCounter, 5289 mSDsluCounter, 5319 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 140.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5289 SdHoareTripleChecker+Valid, 10702 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.19ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 153.27ms IncrementalHoareTripleChecker+Time [2021-11-07 17:33:27,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5289 Valid, 10702 Invalid, 72 Unknown, 0 Unchecked, 8.19ms Time], IncrementalHoareTripleChecker [30 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 153.27ms Time] [2021-11-07 17:33:27,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38118 states. [2021-11-07 17:33:28,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38118 to 38118. [2021-11-07 17:33:28,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38118 states, 38051 states have (on average 1.2381277758797404) internal successors, (47112), 38117 states have internal predecessors, (47112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:28,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38118 states to 38118 states and 47112 transitions. [2021-11-07 17:33:28,574 INFO L78 Accepts]: Start accepts. Automaton has 38118 states and 47112 transitions. Word has length 106 [2021-11-07 17:33:28,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:33:28,575 INFO L470 AbstractCegarLoop]: Abstraction has 38118 states and 47112 transitions. [2021-11-07 17:33:28,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:28,575 INFO L276 IsEmpty]: Start isEmpty. Operand 38118 states and 47112 transitions. [2021-11-07 17:33:28,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-07 17:33:28,576 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:33:28,576 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:33:28,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-07 17:33:28,576 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 17:33:28,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:33:28,577 INFO L85 PathProgramCache]: Analyzing trace with hash -536973904, now seen corresponding path program 1 times [2021-11-07 17:33:28,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:33:28,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597872990] [2021-11-07 17:33:28,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:33:28,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:33:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:33:28,911 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:33:28,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:33:28,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597872990] [2021-11-07 17:33:28,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597872990] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:33:28,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:33:28,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:33:28,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219135215] [2021-11-07 17:33:28,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:33:28,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:33:28,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:33:28,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:33:28,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:33:28,913 INFO L87 Difference]: Start difference. First operand 38118 states and 47112 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:30,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:33:30,037 INFO L93 Difference]: Finished difference Result 38118 states and 47112 transitions. [2021-11-07 17:33:30,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:33:30,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 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 108 [2021-11-07 17:33:30,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:33:30,095 INFO L225 Difference]: With dead ends: 38118 [2021-11-07 17:33:30,095 INFO L226 Difference]: Without dead ends: 38114 [2021-11-07 17:33:30,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.20ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:33:30,112 INFO L933 BasicCegarLoop]: 5379 mSDtfsCounter, 5283 mSDsluCounter, 5317 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 147.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5283 SdHoareTripleChecker+Valid, 10696 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.55ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 160.85ms IncrementalHoareTripleChecker+Time [2021-11-07 17:33:30,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5283 Valid, 10696 Invalid, 70 Unknown, 0 Unchecked, 8.55ms Time], IncrementalHoareTripleChecker [30 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 160.85ms Time] [2021-11-07 17:33:30,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38114 states. [2021-11-07 17:33:31,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38114 to 38114. [2021-11-07 17:33:31,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38114 states, 38049 states have (on average 1.2380877289810508) internal successors, (47108), 38113 states have internal predecessors, (47108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:31,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38114 states to 38114 states and 47108 transitions. [2021-11-07 17:33:31,438 INFO L78 Accepts]: Start accepts. Automaton has 38114 states and 47108 transitions. Word has length 108 [2021-11-07 17:33:31,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:33:31,438 INFO L470 AbstractCegarLoop]: Abstraction has 38114 states and 47108 transitions. [2021-11-07 17:33:31,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:31,439 INFO L276 IsEmpty]: Start isEmpty. Operand 38114 states and 47108 transitions. [2021-11-07 17:33:31,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-07 17:33:31,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:33:31,440 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:33:31,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-07 17:33:31,440 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 17:33:31,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:33:31,441 INFO L85 PathProgramCache]: Analyzing trace with hash -635696045, now seen corresponding path program 1 times [2021-11-07 17:33:31,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:33:31,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351540051] [2021-11-07 17:33:31,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:33:31,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:33:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:33:31,708 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 17:33:31,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:33:31,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351540051] [2021-11-07 17:33:31,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351540051] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:33:31,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:33:31,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:33:31,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892741200] [2021-11-07 17:33:31,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:33:31,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:33:31,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:33:31,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:33:31,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:33:31,710 INFO L87 Difference]: Start difference. First operand 38114 states and 47108 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:32,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:33:32,974 INFO L93 Difference]: Finished difference Result 38114 states and 47108 transitions. [2021-11-07 17:33:32,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:33:32,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 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 110 [2021-11-07 17:33:32,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:33:33,040 INFO L225 Difference]: With dead ends: 38114 [2021-11-07 17:33:33,041 INFO L226 Difference]: Without dead ends: 38110 [2021-11-07 17:33:33,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.23ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:33:33,061 INFO L933 BasicCegarLoop]: 5375 mSDtfsCounter, 5277 mSDsluCounter, 5315 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 126.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5277 SdHoareTripleChecker+Valid, 10690 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.73ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 138.10ms IncrementalHoareTripleChecker+Time [2021-11-07 17:33:33,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5277 Valid, 10690 Invalid, 68 Unknown, 0 Unchecked, 8.73ms Time], IncrementalHoareTripleChecker [30 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 138.10ms Time] [2021-11-07 17:33:33,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38110 states. [2021-11-07 17:33:34,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38110 to 38110. [2021-11-07 17:33:34,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38110 states, 38047 states have (on average 1.2380476778721055) internal successors, (47104), 38109 states have internal predecessors, (47104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:34,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38110 states to 38110 states and 47104 transitions. [2021-11-07 17:33:34,290 INFO L78 Accepts]: Start accepts. Automaton has 38110 states and 47104 transitions. Word has length 110 [2021-11-07 17:33:34,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:33:34,290 INFO L470 AbstractCegarLoop]: Abstraction has 38110 states and 47104 transitions. [2021-11-07 17:33:34,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:33:34,291 INFO L276 IsEmpty]: Start isEmpty. Operand 38110 states and 47104 transitions. [2021-11-07 17:33:34,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-07 17:33:34,292 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:33:34,292 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:33:34,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-07 17:33:34,292 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 17:33:34,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:33:34,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1018392714, now seen corresponding path program 1 times [2021-11-07 17:33:34,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:33:34,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70557164] [2021-11-07 17:33:34,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:33:34,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms