./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-tun.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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-tun.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 97cecdf2f398250e9c44f19d8d35ed7fcac528daa12758af85552fae0658b596 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-03 00:53:58,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 00:53:58,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 00:53:58,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 00:53:58,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 00:53:58,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 00:53:58,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 00:53:58,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 00:53:58,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 00:53:58,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 00:53:58,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 00:53:58,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 00:53:58,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 00:53:58,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 00:53:58,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 00:53:58,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 00:53:58,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 00:53:58,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 00:53:58,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 00:53:58,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 00:53:58,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 00:53:58,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 00:53:58,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 00:53:58,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 00:53:58,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 00:53:58,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 00:53:58,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 00:53:58,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 00:53:58,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 00:53:58,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 00:53:58,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 00:53:58,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 00:53:58,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 00:53:58,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 00:53:58,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 00:53:58,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 00:53:58,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 00:53:58,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 00:53:58,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 00:53:58,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 00:53:58,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 00:53:58,284 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 00:53:58,302 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 00:53:58,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 00:53:58,306 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 00:53:58,306 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 00:53:58,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 00:53:58,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 00:53:58,307 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 00:53:58,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 00:53:58,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 00:53:58,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 00:53:58,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 00:53:58,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 00:53:58,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 00:53:58,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 00:53:58,309 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 00:53:58,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 00:53:58,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 00:53:58,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 00:53:58,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 00:53:58,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 00:53:58,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 00:53:58,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 00:53:58,310 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 00:53:58,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 00:53:58,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 00:53:58,310 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 00:53:58,311 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 00:53:58,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 00:53:58,311 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 00:53:58,311 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97cecdf2f398250e9c44f19d8d35ed7fcac528daa12758af85552fae0658b596 [2021-11-03 00:53:58,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 00:53:58,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 00:53:58,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 00:53:58,543 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 00:53:58,545 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 00:53:58,546 INFO L432 ainManager$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-tun.cil.i [2021-11-03 00:53:58,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1611b57b4/59b29b90c05d4fca92a3f7e0eb96b200/FLAG22c02fb97 [2021-11-03 00:53:59,262 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 00:53:59,262 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-tun.cil.i [2021-11-03 00:53:59,312 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1611b57b4/59b29b90c05d4fca92a3f7e0eb96b200/FLAG22c02fb97 [2021-11-03 00:53:59,569 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1611b57b4/59b29b90c05d4fca92a3f7e0eb96b200 [2021-11-03 00:53:59,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 00:53:59,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 00:53:59,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 00:53:59,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 00:53:59,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 00:53:59,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:53:59" (1/1) ... [2021-11-03 00:53:59,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713115e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:53:59, skipping insertion in model container [2021-11-03 00:53:59,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:53:59" (1/1) ... [2021-11-03 00:53:59,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 00:53:59,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 00:54:02,075 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-tun.cil.i[428896,428909] [2021-11-03 00:54:02,077 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-tun.cil.i[429065,429078] [2021-11-03 00:54:02,078 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-tun.cil.i[429232,429245] [2021-11-03 00:54:02,078 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-tun.cil.i[429400,429413] [2021-11-03 00:54:02,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 00:54:02,152 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 00:54:02,526 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-tun.cil.i[428896,428909] [2021-11-03 00:54:02,528 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-tun.cil.i[429065,429078] [2021-11-03 00:54:02,529 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-tun.cil.i[429232,429245] [2021-11-03 00:54:02,529 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-tun.cil.i[429400,429413] [2021-11-03 00:54:02,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 00:54:02,730 INFO L208 MainTranslator]: Completed translation [2021-11-03 00:54:02,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:02 WrapperNode [2021-11-03 00:54:02,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 00:54:02,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 00:54:02,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 00:54:02,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 00:54:02,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:02" (1/1) ... [2021-11-03 00:54:02,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:02" (1/1) ... [2021-11-03 00:54:03,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 00:54:03,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 00:54:03,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 00:54:03,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 00:54:03,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:02" (1/1) ... [2021-11-03 00:54:03,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:02" (1/1) ... [2021-11-03 00:54:03,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:02" (1/1) ... [2021-11-03 00:54:03,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:02" (1/1) ... [2021-11-03 00:54:03,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:02" (1/1) ... [2021-11-03 00:54:03,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:02" (1/1) ... [2021-11-03 00:54:03,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:02" (1/1) ... [2021-11-03 00:54:03,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 00:54:03,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 00:54:03,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 00:54:03,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 00:54:03,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:02" (1/1) ... [2021-11-03 00:54:03,882 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 00:54:03,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 00:54:03,901 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) [2021-11-03 00:54:03,927 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 [2021-11-03 00:54:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 00:54:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-03 00:54:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-03 00:54:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 00:54:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 00:54:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 00:54:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-03 00:54:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 00:54:03,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 00:54:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 00:54:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 00:54:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-03 00:54:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 00:54:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 00:54:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 00:54:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 00:54:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 00:54:08,217 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-03 00:54:08,217 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-03 00:54:08,218 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-03 00:54:08,218 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 00:54:08,218 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-03 00:54:08,219 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-03 00:54:08,253 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 00:54:08,254 INFO L299 CfgBuilder]: Removed 4574 assume(true) statements. [2021-11-03 00:54:08,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:54:08 BoogieIcfgContainer [2021-11-03 00:54:08,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 00:54:08,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 00:54:08,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 00:54:08,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 00:54:08,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:53:59" (1/3) ... [2021-11-03 00:54:08,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46eff47c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:54:08, skipping insertion in model container [2021-11-03 00:54:08,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:02" (2/3) ... [2021-11-03 00:54:08,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46eff47c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:54:08, skipping insertion in model container [2021-11-03 00:54:08,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:54:08" (3/3) ... [2021-11-03 00:54:08,265 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2021-11-03 00:54:08,268 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 00:54:08,268 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2021-11-03 00:54:08,317 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 00:54:08,325 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 [2021-11-03 00:54:08,325 INFO L340 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2021-11-03 00:54:08,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 5290 states, 5229 states have (on average 1.4756167527251864) internal successors, (7716), 5289 states have internal predecessors, (7716), 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) [2021-11-03 00:54:08,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-03 00:54:08,403 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:54:08,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:54:08,404 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:54:08,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:54:08,407 INFO L85 PathProgramCache]: Analyzing trace with hash -605749184, now seen corresponding path program 1 times [2021-11-03 00:54:08,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:54:08,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917617187] [2021-11-03 00:54:08,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:54:08,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:54:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:54:08,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:54:08,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:54:08,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917617187] [2021-11-03 00:54:08,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917617187] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:54:08,828 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:54:08,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:54:08,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971448379] [2021-11-03 00:54:08,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:54:08,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:54:08,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:54:08,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:54:08,874 INFO L87 Difference]: Start difference. First operand has 5290 states, 5229 states have (on average 1.4756167527251864) internal successors, (7716), 5289 states have internal predecessors, (7716), 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 33.666666666666664) 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) [2021-11-03 00:54:21,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:54:21,115 INFO L93 Difference]: Finished difference Result 13639 states and 19678 transitions. [2021-11-03 00:54:21,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:54:21,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) 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 101 [2021-11-03 00:54:21,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:54:21,157 INFO L225 Difference]: With dead ends: 13639 [2021-11-03 00:54:21,158 INFO L226 Difference]: Without dead ends: 8301 [2021-11-03 00:54:21,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.31ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:54:21,173 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 5502 mSDsluCounter, 6051 mSDsCounter, 0 mSdLazyCounter, 11807 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9846.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5502 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 11816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.61ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11706.03ms IncrementalHoareTripleChecker+Time [2021-11-03 00:54:21,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5502 Valid, 389 Invalid, 11816 Unknown, 0 Unchecked, 34.61ms Time], IncrementalHoareTripleChecker [9 Valid, 11807 Invalid, 0 Unknown, 0 Unchecked, 11706.03ms Time] [2021-11-03 00:54:21,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8301 states. [2021-11-03 00:54:21,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8301 to 8269. [2021-11-03 00:54:21,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8269 states, 8208 states have (on average 1.3310185185185186) internal successors, (10925), 8268 states have internal predecessors, (10925), 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) [2021-11-03 00:54:21,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8269 states to 8269 states and 10925 transitions. [2021-11-03 00:54:21,393 INFO L78 Accepts]: Start accepts. Automaton has 8269 states and 10925 transitions. Word has length 101 [2021-11-03 00:54:21,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:54:21,395 INFO L470 AbstractCegarLoop]: Abstraction has 8269 states and 10925 transitions. [2021-11-03 00:54:21,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) 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) [2021-11-03 00:54:21,396 INFO L276 IsEmpty]: Start isEmpty. Operand 8269 states and 10925 transitions. [2021-11-03 00:54:21,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-03 00:54:21,399 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:54:21,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:54:21,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 00:54:21,402 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:54:21,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:54:21,403 INFO L85 PathProgramCache]: Analyzing trace with hash -568039115, now seen corresponding path program 1 times [2021-11-03 00:54:21,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:54:21,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412703290] [2021-11-03 00:54:21,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:54:21,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:54:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:54:21,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:54:21,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:54:21,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412703290] [2021-11-03 00:54:21,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412703290] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:54:21,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:54:21,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:54:21,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593981092] [2021-11-03 00:54:21,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:54:21,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:54:21,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:54:21,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:54:21,663 INFO L87 Difference]: Start difference. First operand 8269 states and 10925 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) 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) [2021-11-03 00:54:33,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:54:33,785 INFO L93 Difference]: Finished difference Result 23889 states and 31643 transitions. [2021-11-03 00:54:33,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:54:33,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) 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 101 [2021-11-03 00:54:33,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:54:33,830 INFO L225 Difference]: With dead ends: 23889 [2021-11-03 00:54:33,831 INFO L226 Difference]: Without dead ends: 15840 [2021-11-03 00:54:33,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.16ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:54:33,841 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5336 mSDsluCounter, 5504 mSDsCounter, 0 mSdLazyCounter, 11247 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9686.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5336 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.83ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11525.00ms IncrementalHoareTripleChecker+Time [2021-11-03 00:54:33,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5336 Valid, 0 Invalid, 11253 Unknown, 0 Unchecked, 23.83ms Time], IncrementalHoareTripleChecker [6 Valid, 11247 Invalid, 0 Unknown, 0 Unchecked, 11525.00ms Time] [2021-11-03 00:54:33,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15840 states. [2021-11-03 00:54:34,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15840 to 15394. [2021-11-03 00:54:34,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15394 states, 15333 states have (on average 1.3360725233157242) internal successors, (20486), 15393 states have internal predecessors, (20486), 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) [2021-11-03 00:54:34,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15394 states to 15394 states and 20486 transitions. [2021-11-03 00:54:34,192 INFO L78 Accepts]: Start accepts. Automaton has 15394 states and 20486 transitions. Word has length 101 [2021-11-03 00:54:34,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:54:34,194 INFO L470 AbstractCegarLoop]: Abstraction has 15394 states and 20486 transitions. [2021-11-03 00:54:34,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) 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) [2021-11-03 00:54:34,199 INFO L276 IsEmpty]: Start isEmpty. Operand 15394 states and 20486 transitions. [2021-11-03 00:54:34,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-03 00:54:34,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:54:34,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:54:34,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 00:54:34,204 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:54:34,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:54:34,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1713874760, now seen corresponding path program 1 times [2021-11-03 00:54:34,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:54:34,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333147997] [2021-11-03 00:54:34,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:54:34,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:54:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:54:34,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:54:34,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:54:34,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333147997] [2021-11-03 00:54:34,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333147997] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:54:34,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:54:34,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:54:34,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473629541] [2021-11-03 00:54:34,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:54:34,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:54:34,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:54:34,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:54:34,390 INFO L87 Difference]: Start difference. First operand 15394 states and 20486 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-03 00:54:36,663 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 [] [2021-11-03 00:54:45,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:54:45,926 INFO L93 Difference]: Finished difference Result 27011 states and 35963 transitions. [2021-11-03 00:54:45,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:54:45,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 113 [2021-11-03 00:54:45,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:54:45,955 INFO L225 Difference]: With dead ends: 27011 [2021-11-03 00:54:45,956 INFO L226 Difference]: Without dead ends: 11837 [2021-11-03 00:54:45,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.78ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:54:45,978 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1552 mSDsluCounter, 5529 mSDsCounter, 0 mSdLazyCounter, 11322 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9596.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1552 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.17ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 11322 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11166.44ms IncrementalHoareTripleChecker+Time [2021-11-03 00:54:45,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1552 Valid, 0 Invalid, 11338 Unknown, 0 Unchecked, 15.17ms Time], IncrementalHoareTripleChecker [15 Valid, 11322 Invalid, 1 Unknown, 0 Unchecked, 11166.44ms Time] [2021-11-03 00:54:45,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11837 states. [2021-11-03 00:54:46,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11837 to 11747. [2021-11-03 00:54:46,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11747 states, 11686 states have (on average 1.3348451138113984) internal successors, (15599), 11746 states have internal predecessors, (15599), 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) [2021-11-03 00:54:46,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11747 states to 11747 states and 15599 transitions. [2021-11-03 00:54:46,177 INFO L78 Accepts]: Start accepts. Automaton has 11747 states and 15599 transitions. Word has length 113 [2021-11-03 00:54:46,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:54:46,179 INFO L470 AbstractCegarLoop]: Abstraction has 11747 states and 15599 transitions. [2021-11-03 00:54:46,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-03 00:54:46,179 INFO L276 IsEmpty]: Start isEmpty. Operand 11747 states and 15599 transitions. [2021-11-03 00:54:46,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-03 00:54:46,183 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:54:46,183 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:54:46,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 00:54:46,184 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:54:46,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:54:46,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1146638227, now seen corresponding path program 1 times [2021-11-03 00:54:46,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:54:46,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923054981] [2021-11-03 00:54:46,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:54:46,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:54:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:54:46,341 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:54:46,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:54:46,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923054981] [2021-11-03 00:54:46,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923054981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:54:46,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:54:46,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:54:46,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997905944] [2021-11-03 00:54:46,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:54:46,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:54:46,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:54:46,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:54:46,344 INFO L87 Difference]: Start difference. First operand 11747 states and 15599 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-11-03 00:54:57,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:54:57,722 INFO L93 Difference]: Finished difference Result 30717 states and 40934 transitions. [2021-11-03 00:54:57,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:54:57,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 128 [2021-11-03 00:54:57,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:54:57,784 INFO L225 Difference]: With dead ends: 30717 [2021-11-03 00:54:57,785 INFO L226 Difference]: Without dead ends: 21028 [2021-11-03 00:54:57,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.31ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:54:57,796 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5214 mSDsluCounter, 5693 mSDsCounter, 0 mSdLazyCounter, 12741 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9234.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5214 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.05ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10825.89ms IncrementalHoareTripleChecker+Time [2021-11-03 00:54:57,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5214 Valid, 0 Invalid, 12748 Unknown, 0 Unchecked, 15.05ms Time], IncrementalHoareTripleChecker [7 Valid, 12741 Invalid, 0 Unknown, 0 Unchecked, 10825.89ms Time] [2021-11-03 00:54:57,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21028 states. [2021-11-03 00:54:58,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21028 to 20996. [2021-11-03 00:54:58,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20996 states, 20935 states have (on average 1.3377597325053738) internal successors, (28006), 20995 states have internal predecessors, (28006), 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) [2021-11-03 00:54:58,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20996 states to 20996 states and 28006 transitions. [2021-11-03 00:54:58,086 INFO L78 Accepts]: Start accepts. Automaton has 20996 states and 28006 transitions. Word has length 128 [2021-11-03 00:54:58,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:54:58,087 INFO L470 AbstractCegarLoop]: Abstraction has 20996 states and 28006 transitions. [2021-11-03 00:54:58,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-11-03 00:54:58,087 INFO L276 IsEmpty]: Start isEmpty. Operand 20996 states and 28006 transitions. [2021-11-03 00:54:58,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-03 00:54:58,089 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:54:58,090 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:54:58,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 00:54:58,090 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:54:58,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:54:58,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1559981167, now seen corresponding path program 1 times [2021-11-03 00:54:58,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:54:58,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802416797] [2021-11-03 00:54:58,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:54:58,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:54:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:54:58,222 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:54:58,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:54:58,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802416797] [2021-11-03 00:54:58,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802416797] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:54:58,223 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:54:58,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:54:58,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913680401] [2021-11-03 00:54:58,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:54:58,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:54:58,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:54:58,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:54:58,224 INFO L87 Difference]: Start difference. First operand 20996 states and 28006 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-11-03 00:55:13,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:55:13,289 INFO L93 Difference]: Finished difference Result 49219 states and 65756 transitions. [2021-11-03 00:55:13,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:55:13,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 128 [2021-11-03 00:55:13,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:55:13,343 INFO L225 Difference]: With dead ends: 49219 [2021-11-03 00:55:13,344 INFO L226 Difference]: Without dead ends: 30281 [2021-11-03 00:55:13,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.40ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:55:13,377 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5272 mSDsluCounter, 5636 mSDsCounter, 0 mSdLazyCounter, 16601 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12209.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5272 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 16609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.78ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14400.66ms IncrementalHoareTripleChecker+Time [2021-11-03 00:55:13,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5272 Valid, 0 Invalid, 16609 Unknown, 0 Unchecked, 20.78ms Time], IncrementalHoareTripleChecker [8 Valid, 16601 Invalid, 0 Unknown, 0 Unchecked, 14400.66ms Time] [2021-11-03 00:55:13,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30281 states. [2021-11-03 00:55:13,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30281 to 30222. [2021-11-03 00:55:13,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30222 states, 30161 states have (on average 1.3391465800205564) internal successors, (40390), 30221 states have internal predecessors, (40390), 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) [2021-11-03 00:55:13,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30222 states to 30222 states and 40390 transitions. [2021-11-03 00:55:13,884 INFO L78 Accepts]: Start accepts. Automaton has 30222 states and 40390 transitions. Word has length 128 [2021-11-03 00:55:13,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:55:13,885 INFO L470 AbstractCegarLoop]: Abstraction has 30222 states and 40390 transitions. [2021-11-03 00:55:13,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-11-03 00:55:13,885 INFO L276 IsEmpty]: Start isEmpty. Operand 30222 states and 40390 transitions. [2021-11-03 00:55:13,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-03 00:55:13,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:55:13,888 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:55:13,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-03 00:55:13,888 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:55:13,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:55:13,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1174600692, now seen corresponding path program 1 times [2021-11-03 00:55:13,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:55:13,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892922826] [2021-11-03 00:55:13,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:55:13,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:55:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:55:14,121 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 00:55:14,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:55:14,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892922826] [2021-11-03 00:55:14,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892922826] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:55:14,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:55:14,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:55:14,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917928507] [2021-11-03 00:55:14,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:55:14,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:55:14,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:55:14,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:55:14,123 INFO L87 Difference]: Start difference. First operand 30222 states and 40390 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 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) [2021-11-03 00:55:23,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:55:23,383 INFO L93 Difference]: Finished difference Result 30222 states and 40390 transitions. [2021-11-03 00:55:23,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:55:23,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 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 129 [2021-11-03 00:55:23,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:55:23,469 INFO L225 Difference]: With dead ends: 30222 [2021-11-03 00:55:23,469 INFO L226 Difference]: Without dead ends: 30216 [2021-11-03 00:55:23,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.86ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:55:23,482 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5607 mSDsluCounter, 5590 mSDsCounter, 0 mSdLazyCounter, 11393 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7645.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5607 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.28ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 11393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8878.63ms IncrementalHoareTripleChecker+Time [2021-11-03 00:55:23,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5607 Valid, 0 Invalid, 11436 Unknown, 0 Unchecked, 22.28ms Time], IncrementalHoareTripleChecker [43 Valid, 11393 Invalid, 0 Unknown, 0 Unchecked, 8878.63ms Time] [2021-11-03 00:55:23,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30216 states. [2021-11-03 00:55:23,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30216 to 30216. [2021-11-03 00:55:23,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30216 states, 30158 states have (on average 1.3390808409045694) internal successors, (40384), 30215 states have internal predecessors, (40384), 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) [2021-11-03 00:55:23,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30216 states to 30216 states and 40384 transitions. [2021-11-03 00:55:23,947 INFO L78 Accepts]: Start accepts. Automaton has 30216 states and 40384 transitions. Word has length 129 [2021-11-03 00:55:23,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:55:23,948 INFO L470 AbstractCegarLoop]: Abstraction has 30216 states and 40384 transitions. [2021-11-03 00:55:23,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 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) [2021-11-03 00:55:23,949 INFO L276 IsEmpty]: Start isEmpty. Operand 30216 states and 40384 transitions. [2021-11-03 00:55:23,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-03 00:55:23,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:55:23,951 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:55:23,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-03 00:55:23,952 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:55:23,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:55:23,953 INFO L85 PathProgramCache]: Analyzing trace with hash -784967625, now seen corresponding path program 1 times [2021-11-03 00:55:23,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:55:23,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320266600] [2021-11-03 00:55:23,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:55:23,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:55:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:55:24,196 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 00:55:24,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:55:24,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320266600] [2021-11-03 00:55:24,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320266600] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:55:24,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:55:24,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:55:24,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334646443] [2021-11-03 00:55:24,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:55:24,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:55:24,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:55:24,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:55:24,198 INFO L87 Difference]: Start difference. First operand 30216 states and 40384 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2021-11-03 00:55:33,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:55:33,191 INFO L93 Difference]: Finished difference Result 30216 states and 40384 transitions. [2021-11-03 00:55:33,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:55:33,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 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 131 [2021-11-03 00:55:33,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:55:33,278 INFO L225 Difference]: With dead ends: 30216 [2021-11-03 00:55:33,291 INFO L226 Difference]: Without dead ends: 30210 [2021-11-03 00:55:33,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.41ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:55:33,320 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5596 mSDsluCounter, 5587 mSDsCounter, 0 mSdLazyCounter, 11381 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7565.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5596 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.66ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 11381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8564.89ms IncrementalHoareTripleChecker+Time [2021-11-03 00:55:33,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5596 Valid, 0 Invalid, 11427 Unknown, 0 Unchecked, 19.66ms Time], IncrementalHoareTripleChecker [46 Valid, 11381 Invalid, 0 Unknown, 0 Unchecked, 8564.89ms Time] [2021-11-03 00:55:33,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30210 states. [2021-11-03 00:55:33,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30210 to 30210. [2021-11-03 00:55:33,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30210 states, 30155 states have (on average 1.3390150887083403) internal successors, (40378), 30209 states have internal predecessors, (40378), 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) [2021-11-03 00:55:33,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30210 states to 30210 states and 40378 transitions. [2021-11-03 00:55:33,826 INFO L78 Accepts]: Start accepts. Automaton has 30210 states and 40378 transitions. Word has length 131 [2021-11-03 00:55:33,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:55:33,826 INFO L470 AbstractCegarLoop]: Abstraction has 30210 states and 40378 transitions. [2021-11-03 00:55:33,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2021-11-03 00:55:33,827 INFO L276 IsEmpty]: Start isEmpty. Operand 30210 states and 40378 transitions. [2021-11-03 00:55:33,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-03 00:55:33,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:55:33,830 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:55:33,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-03 00:55:33,830 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:55:33,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:55:33,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1560523002, now seen corresponding path program 1 times [2021-11-03 00:55:33,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:55:33,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093664027] [2021-11-03 00:55:33,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:55:33,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:55:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:55:34,001 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 00:55:34,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:55:34,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093664027] [2021-11-03 00:55:34,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093664027] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:55:34,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:55:34,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:55:34,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824561704] [2021-11-03 00:55:34,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:55:34,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:55:34,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:55:34,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:55:34,003 INFO L87 Difference]: Start difference. First operand 30210 states and 40378 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 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) [2021-11-03 00:55:42,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:55:42,238 INFO L93 Difference]: Finished difference Result 30210 states and 40378 transitions. [2021-11-03 00:55:42,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:55:42,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 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 133 [2021-11-03 00:55:42,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:55:42,285 INFO L225 Difference]: With dead ends: 30210 [2021-11-03 00:55:42,286 INFO L226 Difference]: Without dead ends: 30204 [2021-11-03 00:55:42,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.40ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:55:42,299 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5588 mSDsluCounter, 5584 mSDsCounter, 0 mSdLazyCounter, 11369 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6736.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5588 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.19ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 11369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7687.44ms IncrementalHoareTripleChecker+Time [2021-11-03 00:55:42,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5588 Valid, 0 Invalid, 11415 Unknown, 0 Unchecked, 40.19ms Time], IncrementalHoareTripleChecker [46 Valid, 11369 Invalid, 0 Unknown, 0 Unchecked, 7687.44ms Time] [2021-11-03 00:55:42,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30204 states. [2021-11-03 00:55:42,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30204 to 30204. [2021-11-03 00:55:42,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30204 states, 30152 states have (on average 1.338949323427965) internal successors, (40372), 30203 states have internal predecessors, (40372), 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) [2021-11-03 00:55:42,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30204 states to 30204 states and 40372 transitions. [2021-11-03 00:55:42,949 INFO L78 Accepts]: Start accepts. Automaton has 30204 states and 40372 transitions. Word has length 133 [2021-11-03 00:55:42,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:55:42,950 INFO L470 AbstractCegarLoop]: Abstraction has 30204 states and 40372 transitions. [2021-11-03 00:55:42,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 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) [2021-11-03 00:55:42,950 INFO L276 IsEmpty]: Start isEmpty. Operand 30204 states and 40372 transitions. [2021-11-03 00:55:42,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-03 00:55:42,981 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:55:42,981 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:55:42,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-03 00:55:42,982 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:55:42,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:55:42,983 INFO L85 PathProgramCache]: Analyzing trace with hash 719185469, now seen corresponding path program 1 times [2021-11-03 00:55:42,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:55:42,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27471952] [2021-11-03 00:55:42,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:55:42,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:55:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:55:43,402 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 00:55:43,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:55:43,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27471952] [2021-11-03 00:55:43,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27471952] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:55:43,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:55:43,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:55:43,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777825222] [2021-11-03 00:55:43,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:55:43,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:55:43,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:55:43,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:55:43,405 INFO L87 Difference]: Start difference. First operand 30204 states and 40372 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 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) [2021-11-03 00:55:53,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:55:53,561 INFO L93 Difference]: Finished difference Result 30204 states and 40372 transitions. [2021-11-03 00:55:53,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:55:53,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 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 135 [2021-11-03 00:55:53,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:55:53,636 INFO L225 Difference]: With dead ends: 30204 [2021-11-03 00:55:53,636 INFO L226 Difference]: Without dead ends: 30198 [2021-11-03 00:55:53,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.58ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:55:53,652 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5580 mSDsluCounter, 5581 mSDsCounter, 0 mSdLazyCounter, 11357 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8218.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5580 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.87ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 11357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9599.71ms IncrementalHoareTripleChecker+Time [2021-11-03 00:55:53,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5580 Valid, 0 Invalid, 11403 Unknown, 0 Unchecked, 20.87ms Time], IncrementalHoareTripleChecker [46 Valid, 11357 Invalid, 0 Unknown, 0 Unchecked, 9599.71ms Time] [2021-11-03 00:55:53,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30198 states. [2021-11-03 00:55:54,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30198 to 30198. [2021-11-03 00:55:54,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30198 states, 30149 states have (on average 1.3388835450595375) internal successors, (40366), 30197 states have internal predecessors, (40366), 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) [2021-11-03 00:55:54,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30198 states to 30198 states and 40366 transitions. [2021-11-03 00:55:54,347 INFO L78 Accepts]: Start accepts. Automaton has 30198 states and 40366 transitions. Word has length 135 [2021-11-03 00:55:54,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:55:54,347 INFO L470 AbstractCegarLoop]: Abstraction has 30198 states and 40366 transitions. [2021-11-03 00:55:54,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 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) [2021-11-03 00:55:54,347 INFO L276 IsEmpty]: Start isEmpty. Operand 30198 states and 40366 transitions. [2021-11-03 00:55:54,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-03 00:55:54,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:55:54,351 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:55:54,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-03 00:55:54,352 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:55:54,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:55:54,352 INFO L85 PathProgramCache]: Analyzing trace with hash -352331776, now seen corresponding path program 1 times [2021-11-03 00:55:54,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:55:54,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35092158] [2021-11-03 00:55:54,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:55:54,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:55:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:55:54,533 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 00:55:54,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:55:54,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35092158] [2021-11-03 00:55:54,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35092158] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:55:54,534 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:55:54,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:55:54,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119198799] [2021-11-03 00:55:54,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:55:54,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:55:54,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:55:54,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:55:54,535 INFO L87 Difference]: Start difference. First operand 30198 states and 40366 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 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) [2021-11-03 00:56:03,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:56:03,382 INFO L93 Difference]: Finished difference Result 30198 states and 40366 transitions. [2021-11-03 00:56:03,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:56:03,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 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 137 [2021-11-03 00:56:03,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:56:03,443 INFO L225 Difference]: With dead ends: 30198 [2021-11-03 00:56:03,444 INFO L226 Difference]: Without dead ends: 30192 [2021-11-03 00:56:03,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.03ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:56:03,457 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5572 mSDsluCounter, 5578 mSDsCounter, 0 mSdLazyCounter, 11345 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7336.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5572 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.75ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 11345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8358.89ms IncrementalHoareTripleChecker+Time [2021-11-03 00:56:03,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5572 Valid, 0 Invalid, 11391 Unknown, 0 Unchecked, 14.75ms Time], IncrementalHoareTripleChecker [46 Valid, 11345 Invalid, 0 Unknown, 0 Unchecked, 8358.89ms Time] [2021-11-03 00:56:03,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30192 states. [2021-11-03 00:56:04,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30192 to 30192. [2021-11-03 00:56:04,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30192 states, 30146 states have (on average 1.3388177535991508) internal successors, (40360), 30191 states have internal predecessors, (40360), 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) [2021-11-03 00:56:04,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30192 states to 30192 states and 40360 transitions. [2021-11-03 00:56:04,194 INFO L78 Accepts]: Start accepts. Automaton has 30192 states and 40360 transitions. Word has length 137 [2021-11-03 00:56:04,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:56:04,194 INFO L470 AbstractCegarLoop]: Abstraction has 30192 states and 40360 transitions. [2021-11-03 00:56:04,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 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) [2021-11-03 00:56:04,194 INFO L276 IsEmpty]: Start isEmpty. Operand 30192 states and 40360 transitions. [2021-11-03 00:56:04,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-03 00:56:04,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:56:04,205 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:56:04,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-03 00:56:04,205 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:56:04,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:56:04,206 INFO L85 PathProgramCache]: Analyzing trace with hash 711747139, now seen corresponding path program 1 times [2021-11-03 00:56:04,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:56:04,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936372433] [2021-11-03 00:56:04,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:56:04,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:56:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:56:04,373 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 00:56:04,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:56:04,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936372433] [2021-11-03 00:56:04,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936372433] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:56:04,373 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:56:04,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:56:04,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242886221] [2021-11-03 00:56:04,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:56:04,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:56:04,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:56:04,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:56:04,375 INFO L87 Difference]: Start difference. First operand 30192 states and 40360 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-11-03 00:56:14,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:56:14,008 INFO L93 Difference]: Finished difference Result 30192 states and 40360 transitions. [2021-11-03 00:56:14,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:56:14,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2021-11-03 00:56:14,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:56:14,052 INFO L225 Difference]: With dead ends: 30192 [2021-11-03 00:56:14,052 INFO L226 Difference]: Without dead ends: 30186 [2021-11-03 00:56:14,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.13ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:56:14,064 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5564 mSDsluCounter, 5575 mSDsCounter, 0 mSdLazyCounter, 11333 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7549.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5564 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.89ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 11333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9054.32ms IncrementalHoareTripleChecker+Time [2021-11-03 00:56:14,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5564 Valid, 0 Invalid, 11379 Unknown, 0 Unchecked, 20.89ms Time], IncrementalHoareTripleChecker [46 Valid, 11333 Invalid, 0 Unknown, 0 Unchecked, 9054.32ms Time] [2021-11-03 00:56:14,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30186 states. [2021-11-03 00:56:14,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30186 to 30186. [2021-11-03 00:56:14,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30186 states, 30143 states have (on average 1.3387519490428956) internal successors, (40354), 30185 states have internal predecessors, (40354), 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) [2021-11-03 00:56:14,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30186 states to 30186 states and 40354 transitions. [2021-11-03 00:56:14,782 INFO L78 Accepts]: Start accepts. Automaton has 30186 states and 40354 transitions. Word has length 139 [2021-11-03 00:56:14,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:56:14,783 INFO L470 AbstractCegarLoop]: Abstraction has 30186 states and 40354 transitions. [2021-11-03 00:56:14,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-11-03 00:56:14,783 INFO L276 IsEmpty]: Start isEmpty. Operand 30186 states and 40354 transitions. [2021-11-03 00:56:14,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-03 00:56:14,787 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:56:14,787 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:56:14,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-03 00:56:14,787 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:56:14,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:56:14,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1089368326, now seen corresponding path program 1 times [2021-11-03 00:56:14,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:56:14,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144708813] [2021-11-03 00:56:14,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:56:14,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:56:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:56:15,018 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 00:56:15,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:56:15,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144708813] [2021-11-03 00:56:15,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144708813] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:56:15,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:56:15,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:56:15,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584879423] [2021-11-03 00:56:15,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:56:15,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:56:15,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:56:15,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:56:15,021 INFO L87 Difference]: Start difference. First operand 30186 states and 40354 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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) [2021-11-03 00:56:17,380 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 [] [2021-11-03 00:56:26,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:56:26,754 INFO L93 Difference]: Finished difference Result 30186 states and 40354 transitions. [2021-11-03 00:56:26,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:56:26,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 141 [2021-11-03 00:56:26,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:56:26,790 INFO L225 Difference]: With dead ends: 30186 [2021-11-03 00:56:26,791 INFO L226 Difference]: Without dead ends: 30180 [2021-11-03 00:56:26,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.35ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:56:26,798 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5556 mSDsluCounter, 5572 mSDsCounter, 0 mSdLazyCounter, 11320 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9608.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5556 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.32ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 11320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10979.25ms IncrementalHoareTripleChecker+Time [2021-11-03 00:56:26,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5556 Valid, 0 Invalid, 11367 Unknown, 0 Unchecked, 18.32ms Time], IncrementalHoareTripleChecker [46 Valid, 11320 Invalid, 1 Unknown, 0 Unchecked, 10979.25ms Time] [2021-11-03 00:56:26,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30180 states. [2021-11-03 00:56:27,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30180 to 30180. [2021-11-03 00:56:27,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30180 states, 30140 states have (on average 1.3386861313868612) internal successors, (40348), 30179 states have internal predecessors, (40348), 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) [2021-11-03 00:56:27,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30180 states to 30180 states and 40348 transitions. [2021-11-03 00:56:27,701 INFO L78 Accepts]: Start accepts. Automaton has 30180 states and 40348 transitions. Word has length 141 [2021-11-03 00:56:27,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:56:27,702 INFO L470 AbstractCegarLoop]: Abstraction has 30180 states and 40348 transitions. [2021-11-03 00:56:27,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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) [2021-11-03 00:56:27,703 INFO L276 IsEmpty]: Start isEmpty. Operand 30180 states and 40348 transitions. [2021-11-03 00:56:27,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-03 00:56:27,706 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:56:27,706 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:56:27,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-03 00:56:27,706 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:56:27,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:56:27,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1088890807, now seen corresponding path program 1 times [2021-11-03 00:56:27,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:56:27,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765414728] [2021-11-03 00:56:27,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:56:27,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:56:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:56:28,054 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 00:56:28,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:56:28,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765414728] [2021-11-03 00:56:28,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765414728] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:56:28,055 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:56:28,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:56:28,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93462260] [2021-11-03 00:56:28,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:56:28,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:56:28,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:56:28,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:56:28,056 INFO L87 Difference]: Start difference. First operand 30180 states and 40348 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 00:56:37,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:56:37,217 INFO L93 Difference]: Finished difference Result 30180 states and 40348 transitions. [2021-11-03 00:56:37,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:56:37,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-11-03 00:56:37,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:56:37,272 INFO L225 Difference]: With dead ends: 30180 [2021-11-03 00:56:37,272 INFO L226 Difference]: Without dead ends: 30174 [2021-11-03 00:56:37,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.47ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:56:37,287 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4793 mSDsluCounter, 6276 mSDsCounter, 0 mSdLazyCounter, 12056 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7401.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4793 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.19ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 12056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8536.12ms IncrementalHoareTripleChecker+Time [2021-11-03 00:56:37,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4793 Valid, 0 Invalid, 12110 Unknown, 0 Unchecked, 18.19ms Time], IncrementalHoareTripleChecker [54 Valid, 12056 Invalid, 0 Unknown, 0 Unchecked, 8536.12ms Time] [2021-11-03 00:56:37,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30174 states. [2021-11-03 00:56:38,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30174 to 30174. [2021-11-03 00:56:38,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30174 states, 30137 states have (on average 1.338620300627136) internal successors, (40342), 30173 states have internal predecessors, (40342), 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) [2021-11-03 00:56:38,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30174 states to 30174 states and 40342 transitions. [2021-11-03 00:56:38,260 INFO L78 Accepts]: Start accepts. Automaton has 30174 states and 40342 transitions. Word has length 143 [2021-11-03 00:56:38,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:56:38,261 INFO L470 AbstractCegarLoop]: Abstraction has 30174 states and 40342 transitions. [2021-11-03 00:56:38,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 00:56:38,261 INFO L276 IsEmpty]: Start isEmpty. Operand 30174 states and 40342 transitions. [2021-11-03 00:56:38,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-03 00:56:38,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:56:38,265 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:56:38,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-03 00:56:38,265 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:56:38,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:56:38,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1548123148, now seen corresponding path program 1 times [2021-11-03 00:56:38,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:56:38,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620256864] [2021-11-03 00:56:38,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:56:38,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:56:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:56:38,439 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 00:56:38,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:56:38,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620256864] [2021-11-03 00:56:38,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620256864] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:56:38,440 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:56:38,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:56:38,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88188022] [2021-11-03 00:56:38,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:56:38,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:56:38,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:56:38,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:56:38,441 INFO L87 Difference]: Start difference. First operand 30174 states and 40342 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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) [2021-11-03 00:56:47,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:56:47,370 INFO L93 Difference]: Finished difference Result 30174 states and 40342 transitions. [2021-11-03 00:56:47,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:56:47,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2021-11-03 00:56:47,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:56:47,431 INFO L225 Difference]: With dead ends: 30174 [2021-11-03 00:56:47,431 INFO L226 Difference]: Without dead ends: 30168 [2021-11-03 00:56:47,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.17ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:56:47,448 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5540 mSDsluCounter, 5566 mSDsCounter, 0 mSdLazyCounter, 11297 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7082.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5540 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.34ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 11297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8212.13ms IncrementalHoareTripleChecker+Time [2021-11-03 00:56:47,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5540 Valid, 0 Invalid, 11343 Unknown, 0 Unchecked, 17.34ms Time], IncrementalHoareTripleChecker [46 Valid, 11297 Invalid, 0 Unknown, 0 Unchecked, 8212.13ms Time] [2021-11-03 00:56:47,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30168 states. [2021-11-03 00:56:48,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30168 to 30168. [2021-11-03 00:56:48,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30168 states, 30134 states have (on average 1.3385544567598062) internal successors, (40336), 30167 states have internal predecessors, (40336), 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) [2021-11-03 00:56:48,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30168 states to 30168 states and 40336 transitions. [2021-11-03 00:56:48,267 INFO L78 Accepts]: Start accepts. Automaton has 30168 states and 40336 transitions. Word has length 145 [2021-11-03 00:56:48,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:56:48,272 INFO L470 AbstractCegarLoop]: Abstraction has 30168 states and 40336 transitions. [2021-11-03 00:56:48,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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) [2021-11-03 00:56:48,272 INFO L276 IsEmpty]: Start isEmpty. Operand 30168 states and 40336 transitions. [2021-11-03 00:56:48,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-03 00:56:48,277 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:56:48,277 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:56:48,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-03 00:56:48,278 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:56:48,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:56:48,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1687829583, now seen corresponding path program 1 times [2021-11-03 00:56:48,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:56:48,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584892307] [2021-11-03 00:56:48,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:56:48,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:56:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:56:48,441 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 00:56:48,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:56:48,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584892307] [2021-11-03 00:56:48,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584892307] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:56:48,442 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:56:48,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:56:48,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010092612] [2021-11-03 00:56:48,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:56:48,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:56:48,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:56:48,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:56:48,443 INFO L87 Difference]: Start difference. First operand 30168 states and 40336 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 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) [2021-11-03 00:56:58,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:56:58,033 INFO L93 Difference]: Finished difference Result 30168 states and 40336 transitions. [2021-11-03 00:56:58,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:56:58,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 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 147 [2021-11-03 00:56:58,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:56:58,075 INFO L225 Difference]: With dead ends: 30168 [2021-11-03 00:56:58,075 INFO L226 Difference]: Without dead ends: 30162 [2021-11-03 00:56:58,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.83ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:56:58,086 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5532 mSDsluCounter, 5563 mSDsCounter, 0 mSdLazyCounter, 11285 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7405.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5532 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.79ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 11285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8730.95ms IncrementalHoareTripleChecker+Time [2021-11-03 00:56:58,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5532 Valid, 0 Invalid, 11331 Unknown, 0 Unchecked, 18.79ms Time], IncrementalHoareTripleChecker [46 Valid, 11285 Invalid, 0 Unknown, 0 Unchecked, 8730.95ms Time] [2021-11-03 00:56:58,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30162 states. [2021-11-03 00:56:58,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30162 to 30162. [2021-11-03 00:56:58,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30162 states, 30131 states have (on average 1.3384885997809566) internal successors, (40330), 30161 states have internal predecessors, (40330), 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) [2021-11-03 00:56:58,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30162 states to 30162 states and 40330 transitions. [2021-11-03 00:56:58,904 INFO L78 Accepts]: Start accepts. Automaton has 30162 states and 40330 transitions. Word has length 147 [2021-11-03 00:56:58,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:56:58,905 INFO L470 AbstractCegarLoop]: Abstraction has 30162 states and 40330 transitions. [2021-11-03 00:56:58,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 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) [2021-11-03 00:56:58,905 INFO L276 IsEmpty]: Start isEmpty. Operand 30162 states and 40330 transitions. [2021-11-03 00:56:58,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-03 00:56:58,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:56:58,911 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:56:58,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-03 00:56:58,911 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:56:58,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:56:58,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1493239534, now seen corresponding path program 1 times [2021-11-03 00:56:58,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:56:58,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598533544] [2021-11-03 00:56:58,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:56:58,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:56:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:56:59,076 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 00:56:59,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:56:59,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598533544] [2021-11-03 00:56:59,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598533544] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:56:59,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:56:59,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:56:59,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434422336] [2021-11-03 00:56:59,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:56:59,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:56:59,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:56:59,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:56:59,078 INFO L87 Difference]: Start difference. First operand 30162 states and 40330 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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) [2021-11-03 00:57:09,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:57:09,272 INFO L93 Difference]: Finished difference Result 30162 states and 40330 transitions. [2021-11-03 00:57:09,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:57:09,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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 149 [2021-11-03 00:57:09,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:57:09,321 INFO L225 Difference]: With dead ends: 30162 [2021-11-03 00:57:09,322 INFO L226 Difference]: Without dead ends: 30156 [2021-11-03 00:57:09,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.15ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:57:09,336 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5524 mSDsluCounter, 5560 mSDsCounter, 0 mSdLazyCounter, 11273 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7857.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5524 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.28ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 11273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9210.86ms IncrementalHoareTripleChecker+Time [2021-11-03 00:57:09,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5524 Valid, 0 Invalid, 11319 Unknown, 0 Unchecked, 19.28ms Time], IncrementalHoareTripleChecker [46 Valid, 11273 Invalid, 0 Unknown, 0 Unchecked, 9210.86ms Time] [2021-11-03 00:57:09,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30156 states. [2021-11-03 00:57:10,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30156 to 30156. [2021-11-03 00:57:10,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30156 states, 30128 states have (on average 1.3384227296866702) internal successors, (40324), 30155 states have internal predecessors, (40324), 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) [2021-11-03 00:57:10,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30156 states to 30156 states and 40324 transitions. [2021-11-03 00:57:10,256 INFO L78 Accepts]: Start accepts. Automaton has 30156 states and 40324 transitions. Word has length 149 [2021-11-03 00:57:10,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:57:10,256 INFO L470 AbstractCegarLoop]: Abstraction has 30156 states and 40324 transitions. [2021-11-03 00:57:10,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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) [2021-11-03 00:57:10,257 INFO L276 IsEmpty]: Start isEmpty. Operand 30156 states and 40324 transitions. [2021-11-03 00:57:10,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-03 00:57:10,262 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:57:10,262 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:57:10,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-03 00:57:10,263 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:57:10,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:57:10,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1052033605, now seen corresponding path program 1 times [2021-11-03 00:57:10,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:57:10,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436736859] [2021-11-03 00:57:10,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:57:10,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:57:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:57:10,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:57:10,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:57:10,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436736859] [2021-11-03 00:57:10,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436736859] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:57:10,421 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:57:10,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:57:10,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125695711] [2021-11-03 00:57:10,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:57:10,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:57:10,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:57:10,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:57:10,422 INFO L87 Difference]: Start difference. First operand 30156 states and 40324 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2021-11-03 00:57:21,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:57:21,297 INFO L93 Difference]: Finished difference Result 63911 states and 85557 transitions. [2021-11-03 00:57:21,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:57:21,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 150 [2021-11-03 00:57:21,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:57:21,352 INFO L225 Difference]: With dead ends: 63911 [2021-11-03 00:57:21,352 INFO L226 Difference]: Without dead ends: 35813 [2021-11-03 00:57:21,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.78ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:57:21,381 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1423 mSDsluCounter, 5557 mSDsCounter, 0 mSdLazyCounter, 12705 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8135.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.51ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9493.30ms IncrementalHoareTripleChecker+Time [2021-11-03 00:57:21,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1423 Valid, 0 Invalid, 12714 Unknown, 0 Unchecked, 14.51ms Time], IncrementalHoareTripleChecker [9 Valid, 12705 Invalid, 0 Unknown, 0 Unchecked, 9493.30ms Time] [2021-11-03 00:57:21,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35813 states. [2021-11-03 00:57:22,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35813 to 35736. [2021-11-03 00:57:22,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35736 states, 35708 states have (on average 1.339251708300661) internal successors, (47822), 35735 states have internal predecessors, (47822), 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) [2021-11-03 00:57:22,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35736 states to 35736 states and 47822 transitions. [2021-11-03 00:57:22,519 INFO L78 Accepts]: Start accepts. Automaton has 35736 states and 47822 transitions. Word has length 150 [2021-11-03 00:57:22,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:57:22,519 INFO L470 AbstractCegarLoop]: Abstraction has 35736 states and 47822 transitions. [2021-11-03 00:57:22,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2021-11-03 00:57:22,520 INFO L276 IsEmpty]: Start isEmpty. Operand 35736 states and 47822 transitions. [2021-11-03 00:57:22,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-03 00:57:22,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:57:22,524 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:57:22,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-03 00:57:22,524 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:57:22,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:57:22,525 INFO L85 PathProgramCache]: Analyzing trace with hash -483945899, now seen corresponding path program 1 times [2021-11-03 00:57:22,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:57:22,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568218017] [2021-11-03 00:57:22,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:57:22,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:57:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:57:22,688 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 00:57:22,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:57:22,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568218017] [2021-11-03 00:57:22,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568218017] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:57:22,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:57:22,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:57:22,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026119187] [2021-11-03 00:57:22,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:57:22,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:57:22,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:57:22,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:57:22,690 INFO L87 Difference]: Start difference. First operand 35736 states and 47822 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 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) [2021-11-03 00:57:32,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:57:32,528 INFO L93 Difference]: Finished difference Result 35736 states and 47822 transitions. [2021-11-03 00:57:32,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:57:32,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 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 151 [2021-11-03 00:57:32,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:57:32,585 INFO L225 Difference]: With dead ends: 35736 [2021-11-03 00:57:32,586 INFO L226 Difference]: Without dead ends: 35730 [2021-11-03 00:57:32,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.30ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:57:32,598 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5516 mSDsluCounter, 5557 mSDsCounter, 0 mSdLazyCounter, 11261 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7464.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5516 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.68ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 11261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8697.04ms IncrementalHoareTripleChecker+Time [2021-11-03 00:57:32,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5516 Valid, 0 Invalid, 11307 Unknown, 0 Unchecked, 19.68ms Time], IncrementalHoareTripleChecker [46 Valid, 11261 Invalid, 0 Unknown, 0 Unchecked, 8697.04ms Time] [2021-11-03 00:57:32,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35730 states. [2021-11-03 00:57:33,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35730 to 35730. [2021-11-03 00:57:33,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35730 states, 35705 states have (on average 1.3391961910096626) internal successors, (47816), 35729 states have internal predecessors, (47816), 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) [2021-11-03 00:57:33,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35730 states to 35730 states and 47816 transitions. [2021-11-03 00:57:33,700 INFO L78 Accepts]: Start accepts. Automaton has 35730 states and 47816 transitions. Word has length 151 [2021-11-03 00:57:33,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:57:33,701 INFO L470 AbstractCegarLoop]: Abstraction has 35730 states and 47816 transitions. [2021-11-03 00:57:33,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 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) [2021-11-03 00:57:33,701 INFO L276 IsEmpty]: Start isEmpty. Operand 35730 states and 47816 transitions. [2021-11-03 00:57:33,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-03 00:57:33,706 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:57:33,707 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:57:33,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-03 00:57:33,707 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:57:33,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:57:33,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1215371240, now seen corresponding path program 1 times [2021-11-03 00:57:33,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:57:33,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801078431] [2021-11-03 00:57:33,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:57:33,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:57:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:57:33,863 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 00:57:33,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:57:33,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801078431] [2021-11-03 00:57:33,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801078431] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:57:33,864 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:57:33,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:57:33,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25656417] [2021-11-03 00:57:33,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:57:33,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:57:33,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:57:33,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:57:33,866 INFO L87 Difference]: Start difference. First operand 35730 states and 47816 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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) [2021-11-03 00:57:44,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:57:44,032 INFO L93 Difference]: Finished difference Result 35730 states and 47816 transitions. [2021-11-03 00:57:44,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:57:44,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 153 [2021-11-03 00:57:44,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:57:44,093 INFO L225 Difference]: With dead ends: 35730 [2021-11-03 00:57:44,094 INFO L226 Difference]: Without dead ends: 35724 [2021-11-03 00:57:44,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.58ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:57:44,110 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5508 mSDsluCounter, 5554 mSDsCounter, 0 mSdLazyCounter, 11249 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7598.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5508 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.12ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 11249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8962.46ms IncrementalHoareTripleChecker+Time [2021-11-03 00:57:44,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5508 Valid, 0 Invalid, 11295 Unknown, 0 Unchecked, 18.12ms Time], IncrementalHoareTripleChecker [46 Valid, 11249 Invalid, 0 Unknown, 0 Unchecked, 8962.46ms Time] [2021-11-03 00:57:44,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35724 states. [2021-11-03 00:57:45,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35724 to 35724. [2021-11-03 00:57:45,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35724 states, 35702 states have (on average 1.3391406643885497) internal successors, (47810), 35723 states have internal predecessors, (47810), 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) [2021-11-03 00:57:45,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35724 states to 35724 states and 47810 transitions. [2021-11-03 00:57:45,441 INFO L78 Accepts]: Start accepts. Automaton has 35724 states and 47810 transitions. Word has length 153 [2021-11-03 00:57:45,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:57:45,441 INFO L470 AbstractCegarLoop]: Abstraction has 35724 states and 47810 transitions. [2021-11-03 00:57:45,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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) [2021-11-03 00:57:45,442 INFO L276 IsEmpty]: Start isEmpty. Operand 35724 states and 47810 transitions. [2021-11-03 00:57:45,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-03 00:57:45,447 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:57:45,447 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:57:45,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-03 00:57:45,447 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:57:45,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:57:45,448 INFO L85 PathProgramCache]: Analyzing trace with hash 259512923, now seen corresponding path program 1 times [2021-11-03 00:57:45,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:57:45,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659301528] [2021-11-03 00:57:45,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:57:45,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:57:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:57:45,614 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 00:57:45,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:57:45,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659301528] [2021-11-03 00:57:45,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659301528] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:57:45,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:57:45,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:57:45,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181037708] [2021-11-03 00:57:45,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:57:45,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:57:45,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:57:45,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:57:45,616 INFO L87 Difference]: Start difference. First operand 35724 states and 47810 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2021-11-03 00:57:56,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:57:56,247 INFO L93 Difference]: Finished difference Result 35724 states and 47810 transitions. [2021-11-03 00:57:56,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:57:56,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 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 155 [2021-11-03 00:57:56,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:57:56,308 INFO L225 Difference]: With dead ends: 35724 [2021-11-03 00:57:56,308 INFO L226 Difference]: Without dead ends: 35718 [2021-11-03 00:57:56,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.79ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:57:56,324 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5500 mSDsluCounter, 5551 mSDsCounter, 0 mSdLazyCounter, 11237 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8013.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5500 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.59ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 11237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9306.78ms IncrementalHoareTripleChecker+Time [2021-11-03 00:57:56,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5500 Valid, 0 Invalid, 11283 Unknown, 0 Unchecked, 19.59ms Time], IncrementalHoareTripleChecker [46 Valid, 11237 Invalid, 0 Unknown, 0 Unchecked, 9306.78ms Time] [2021-11-03 00:57:56,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35718 states. [2021-11-03 00:57:57,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35718 to 35718. [2021-11-03 00:57:57,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35718 states, 35699 states have (on average 1.33908512843497) internal successors, (47804), 35717 states have internal predecessors, (47804), 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) [2021-11-03 00:57:57,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35718 states to 35718 states and 47804 transitions. [2021-11-03 00:57:57,630 INFO L78 Accepts]: Start accepts. Automaton has 35718 states and 47804 transitions. Word has length 155 [2021-11-03 00:57:57,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:57:57,631 INFO L470 AbstractCegarLoop]: Abstraction has 35718 states and 47804 transitions. [2021-11-03 00:57:57,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2021-11-03 00:57:57,631 INFO L276 IsEmpty]: Start isEmpty. Operand 35718 states and 47804 transitions. [2021-11-03 00:57:57,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-03 00:57:57,636 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:57:57,636 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:57:57,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-03 00:57:57,637 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:57:57,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:57:57,637 INFO L85 PathProgramCache]: Analyzing trace with hash 283986206, now seen corresponding path program 1 times [2021-11-03 00:57:57,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:57:57,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923170494] [2021-11-03 00:57:57,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:57:57,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:57:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:57:57,788 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 00:57:57,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:57:57,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923170494] [2021-11-03 00:57:57,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923170494] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:57:57,788 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:57:57,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:57:57,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985874942] [2021-11-03 00:57:57,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:57:57,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:57:57,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:57:57,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:57:57,791 INFO L87 Difference]: Start difference. First operand 35718 states and 47804 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 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) [2021-11-03 00:58:07,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:58:07,415 INFO L93 Difference]: Finished difference Result 35718 states and 47804 transitions. [2021-11-03 00:58:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:58:07,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 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 157 [2021-11-03 00:58:07,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:58:07,469 INFO L225 Difference]: With dead ends: 35718 [2021-11-03 00:58:07,469 INFO L226 Difference]: Without dead ends: 35595 [2021-11-03 00:58:07,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.83ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:58:07,484 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5489 mSDsluCounter, 5548 mSDsCounter, 0 mSdLazyCounter, 11225 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7360.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5489 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.62ms SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 11225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8486.41ms IncrementalHoareTripleChecker+Time [2021-11-03 00:58:07,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5489 Valid, 0 Invalid, 11274 Unknown, 0 Unchecked, 17.62ms Time], IncrementalHoareTripleChecker [49 Valid, 11225 Invalid, 0 Unknown, 0 Unchecked, 8486.41ms Time] [2021-11-03 00:58:07,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35595 states. [2021-11-03 00:58:08,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35595 to 35595. [2021-11-03 00:58:08,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35595 states, 35579 states have (on average 1.3395542314286517) internal successors, (47660), 35594 states have internal predecessors, (47660), 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) [2021-11-03 00:58:08,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35595 states to 35595 states and 47660 transitions. [2021-11-03 00:58:08,734 INFO L78 Accepts]: Start accepts. Automaton has 35595 states and 47660 transitions. Word has length 157 [2021-11-03 00:58:08,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:58:08,734 INFO L470 AbstractCegarLoop]: Abstraction has 35595 states and 47660 transitions. [2021-11-03 00:58:08,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 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) [2021-11-03 00:58:08,735 INFO L276 IsEmpty]: Start isEmpty. Operand 35595 states and 47660 transitions. [2021-11-03 00:58:08,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-03 00:58:08,743 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:58:08,743 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:58:08,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-03 00:58:08,743 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:58:08,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:58:08,744 INFO L85 PathProgramCache]: Analyzing trace with hash -213727738, now seen corresponding path program 1 times [2021-11-03 00:58:08,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:58:08,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619009264] [2021-11-03 00:58:08,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:58:08,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:58:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:58:08,890 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 00:58:08,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:58:08,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619009264] [2021-11-03 00:58:08,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619009264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:58:08,891 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:58:08,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:58:08,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334723240] [2021-11-03 00:58:08,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:58:08,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:58:08,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:58:08,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:58:08,892 INFO L87 Difference]: Start difference. First operand 35595 states and 47660 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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) [2021-11-03 00:58:20,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:58:20,280 INFO L93 Difference]: Finished difference Result 74722 states and 100149 transitions. [2021-11-03 00:58:20,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:58:20,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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 192 [2021-11-03 00:58:20,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:58:20,354 INFO L225 Difference]: With dead ends: 74722 [2021-11-03 00:58:20,354 INFO L226 Difference]: Without dead ends: 41185 [2021-11-03 00:58:20,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.41ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:58:20,403 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1395 mSDsluCounter, 5418 mSDsCounter, 0 mSdLazyCounter, 12370 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8321.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.43ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 12370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9752.21ms IncrementalHoareTripleChecker+Time [2021-11-03 00:58:20,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1395 Valid, 0 Invalid, 12380 Unknown, 0 Unchecked, 16.43ms Time], IncrementalHoareTripleChecker [10 Valid, 12370 Invalid, 0 Unknown, 0 Unchecked, 9752.21ms Time] [2021-11-03 00:58:20,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41185 states. [2021-11-03 00:58:21,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41185 to 41169. [2021-11-03 00:58:21,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41169 states, 41153 states have (on average 1.3399752144436614) internal successors, (55144), 41168 states have internal predecessors, (55144), 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) [2021-11-03 00:58:21,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41169 states to 41169 states and 55144 transitions. [2021-11-03 00:58:21,917 INFO L78 Accepts]: Start accepts. Automaton has 41169 states and 55144 transitions. Word has length 192 [2021-11-03 00:58:21,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:58:21,918 INFO L470 AbstractCegarLoop]: Abstraction has 41169 states and 55144 transitions. [2021-11-03 00:58:21,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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) [2021-11-03 00:58:21,918 INFO L276 IsEmpty]: Start isEmpty. Operand 41169 states and 55144 transitions. [2021-11-03 00:58:21,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-03 00:58:21,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:58:21,930 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:58:21,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-03 00:58:21,930 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:58:21,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:58:21,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1599931132, now seen corresponding path program 1 times [2021-11-03 00:58:21,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:58:21,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627398233] [2021-11-03 00:58:21,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:58:21,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:58:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:58:22,061 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 00:58:22,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:58:22,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627398233] [2021-11-03 00:58:22,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627398233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:58:22,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:58:22,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:58:22,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286022489] [2021-11-03 00:58:22,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:58:22,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:58:22,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:58:22,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:58:22,063 INFO L87 Difference]: Start difference. First operand 41169 states and 55144 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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) [2021-11-03 00:58:24,521 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 [] [2021-11-03 00:58:36,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:58:36,401 INFO L93 Difference]: Finished difference Result 85852 states and 115081 transitions. [2021-11-03 00:58:36,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:58:36,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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 192 [2021-11-03 00:58:36,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:58:36,475 INFO L225 Difference]: With dead ends: 85852 [2021-11-03 00:58:36,476 INFO L226 Difference]: Without dead ends: 46741 [2021-11-03 00:58:36,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:58:36,515 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1355 mSDsluCounter, 5455 mSDsCounter, 0 mSdLazyCounter, 12403 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10516.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.30ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12079.19ms IncrementalHoareTripleChecker+Time [2021-11-03 00:58:36,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1355 Valid, 0 Invalid, 12411 Unknown, 0 Unchecked, 17.30ms Time], IncrementalHoareTripleChecker [7 Valid, 12403 Invalid, 1 Unknown, 0 Unchecked, 12079.19ms Time] [2021-11-03 00:58:36,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46741 states. [2021-11-03 00:58:38,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46741 to 46725. [2021-11-03 00:58:38,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46725 states, 46709 states have (on average 1.3404268984564003) internal successors, (62610), 46724 states have internal predecessors, (62610), 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) [2021-11-03 00:58:38,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46725 states to 46725 states and 62610 transitions. [2021-11-03 00:58:38,317 INFO L78 Accepts]: Start accepts. Automaton has 46725 states and 62610 transitions. Word has length 192 [2021-11-03 00:58:38,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:58:38,317 INFO L470 AbstractCegarLoop]: Abstraction has 46725 states and 62610 transitions. [2021-11-03 00:58:38,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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) [2021-11-03 00:58:38,317 INFO L276 IsEmpty]: Start isEmpty. Operand 46725 states and 62610 transitions. [2021-11-03 00:58:38,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-03 00:58:38,328 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:58:38,328 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:58:38,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-03 00:58:38,328 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:58:38,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:58:38,329 INFO L85 PathProgramCache]: Analyzing trace with hash 312187237, now seen corresponding path program 1 times [2021-11-03 00:58:38,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:58:38,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107953878] [2021-11-03 00:58:38,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:58:38,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:58:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:58:38,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:58:38,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:58:38,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107953878] [2021-11-03 00:58:38,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107953878] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:58:38,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:58:38,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:58:38,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068331253] [2021-11-03 00:58:38,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:58:38,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:58:38,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:58:38,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:58:38,436 INFO L87 Difference]: Start difference. First operand 46725 states and 62610 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 00:58:50,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:58:50,891 INFO L93 Difference]: Finished difference Result 117644 states and 157869 transitions. [2021-11-03 00:58:50,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:58:50,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2021-11-03 00:58:50,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:58:51,028 INFO L225 Difference]: With dead ends: 117644 [2021-11-03 00:58:51,028 INFO L226 Difference]: Without dead ends: 70631 [2021-11-03 00:58:51,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:58:51,205 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4418 mSDsluCounter, 5478 mSDsCounter, 0 mSdLazyCounter, 11170 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8504.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4418 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.52ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 11170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9966.89ms IncrementalHoareTripleChecker+Time [2021-11-03 00:58:51,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4418 Valid, 0 Invalid, 11183 Unknown, 0 Unchecked, 14.52ms Time], IncrementalHoareTripleChecker [13 Valid, 11170 Invalid, 0 Unknown, 0 Unchecked, 9966.89ms Time] [2021-11-03 00:58:51,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70631 states. [2021-11-03 00:58:53,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70631 to 70462. [2021-11-03 00:58:53,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70462 states, 70446 states have (on average 1.3389688555773216) internal successors, (94325), 70461 states have internal predecessors, (94325), 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) [2021-11-03 00:58:53,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70462 states to 70462 states and 94325 transitions. [2021-11-03 00:58:53,853 INFO L78 Accepts]: Start accepts. Automaton has 70462 states and 94325 transitions. Word has length 196 [2021-11-03 00:58:53,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:58:53,854 INFO L470 AbstractCegarLoop]: Abstraction has 70462 states and 94325 transitions. [2021-11-03 00:58:53,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 00:58:53,854 INFO L276 IsEmpty]: Start isEmpty. Operand 70462 states and 94325 transitions. [2021-11-03 00:58:53,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-03 00:58:53,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:58:53,868 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:58:53,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-03 00:58:53,869 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:58:53,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:58:53,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1566674266, now seen corresponding path program 1 times [2021-11-03 00:58:53,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:58:53,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792630718] [2021-11-03 00:58:53,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:58:53,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:58:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:58:54,061 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-03 00:58:54,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:58:54,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792630718] [2021-11-03 00:58:54,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792630718] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:58:54,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:58:54,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:58:54,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777145834] [2021-11-03 00:58:54,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:58:54,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:58:54,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:58:54,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:58:54,063 INFO L87 Difference]: Start difference. First operand 70462 states and 94325 transitions. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2021-11-03 00:59:06,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:59:06,028 INFO L93 Difference]: Finished difference Result 147853 states and 198055 transitions. [2021-11-03 00:59:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:59:06,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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 219 [2021-11-03 00:59:06,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:59:06,174 INFO L225 Difference]: With dead ends: 147853 [2021-11-03 00:59:06,175 INFO L226 Difference]: Without dead ends: 77865 [2021-11-03 00:59:06,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.61ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:59:06,282 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1356 mSDsluCounter, 5455 mSDsCounter, 0 mSdLazyCounter, 12407 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7595.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.10ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8845.12ms IncrementalHoareTripleChecker+Time [2021-11-03 00:59:06,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1356 Valid, 0 Invalid, 12413 Unknown, 0 Unchecked, 14.10ms Time], IncrementalHoareTripleChecker [6 Valid, 12407 Invalid, 0 Unknown, 0 Unchecked, 8845.12ms Time] [2021-11-03 00:59:06,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77865 states. [2021-11-03 00:59:09,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77865 to 77841. [2021-11-03 00:59:09,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77841 states, 77825 states have (on average 1.3391840668165758) internal successors, (104222), 77840 states have internal predecessors, (104222), 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) [2021-11-03 00:59:09,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77841 states to 77841 states and 104222 transitions. [2021-11-03 00:59:09,241 INFO L78 Accepts]: Start accepts. Automaton has 77841 states and 104222 transitions. Word has length 219 [2021-11-03 00:59:09,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:59:09,241 INFO L470 AbstractCegarLoop]: Abstraction has 77841 states and 104222 transitions. [2021-11-03 00:59:09,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2021-11-03 00:59:09,242 INFO L276 IsEmpty]: Start isEmpty. Operand 77841 states and 104222 transitions. [2021-11-03 00:59:09,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-03 00:59:09,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:59:09,261 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:59:09,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-03 00:59:09,262 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:59:09,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:59:09,262 INFO L85 PathProgramCache]: Analyzing trace with hash -180470872, now seen corresponding path program 1 times [2021-11-03 00:59:09,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:59:09,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236256561] [2021-11-03 00:59:09,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:59:09,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:59:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:59:09,475 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-03 00:59:09,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:59:09,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236256561] [2021-11-03 00:59:09,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236256561] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 00:59:09,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452471359] [2021-11-03 00:59:09,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:59:09,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 00:59:09,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 00:59:09,478 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 00:59:09,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 00:59:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:59:10,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 3980 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 00:59:10,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 00:59:10,891 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-03 00:59:10,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 00:59:10,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452471359] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:59:10,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-03 00:59:10,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-03 00:59:10,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443468823] [2021-11-03 00:59:10,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:59:10,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:59:10,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:59:10,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:59:10,894 INFO L87 Difference]: Start difference. First operand 77841 states and 104222 transitions. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2021-11-03 00:59:21,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:59:21,804 INFO L93 Difference]: Finished difference Result 162860 states and 218294 transitions. [2021-11-03 00:59:21,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:59:21,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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 219 [2021-11-03 00:59:21,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:59:21,973 INFO L225 Difference]: With dead ends: 162860 [2021-11-03 00:59:21,974 INFO L226 Difference]: Without dead ends: 85493 [2021-11-03 00:59:22,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.35ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:59:22,060 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4816 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 7597 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6463.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4816 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.82ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 7597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7579.92ms IncrementalHoareTripleChecker+Time [2021-11-03 00:59:22,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4816 Valid, 0 Invalid, 7623 Unknown, 0 Unchecked, 9.82ms Time], IncrementalHoareTripleChecker [26 Valid, 7597 Invalid, 0 Unknown, 0 Unchecked, 7579.92ms Time] [2021-11-03 00:59:22,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85493 states. [2021-11-03 00:59:25,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85493 to 85388. [2021-11-03 00:59:25,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85388 states, 85372 states have (on average 1.3406503303190742) internal successors, (114454), 85387 states have internal predecessors, (114454), 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) [2021-11-03 00:59:25,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85388 states to 85388 states and 114454 transitions. [2021-11-03 00:59:25,292 INFO L78 Accepts]: Start accepts. Automaton has 85388 states and 114454 transitions. Word has length 219 [2021-11-03 00:59:25,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:59:25,292 INFO L470 AbstractCegarLoop]: Abstraction has 85388 states and 114454 transitions. [2021-11-03 00:59:25,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2021-11-03 00:59:25,292 INFO L276 IsEmpty]: Start isEmpty. Operand 85388 states and 114454 transitions. [2021-11-03 00:59:25,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-11-03 00:59:25,312 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:59:25,312 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:59:25,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-03 00:59:25,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-03 00:59:25,518 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-03 00:59:25,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:59:25,518 INFO L85 PathProgramCache]: Analyzing trace with hash -29583761, now seen corresponding path program 1 times [2021-11-03 00:59:25,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:59:25,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276836757] [2021-11-03 00:59:25,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:59:25,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:59:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:59:25,901 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-03 00:59:25,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:59:25,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276836757] [2021-11-03 00:59:25,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276836757] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:59:25,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:59:25,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:59:25,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161975112] [2021-11-03 00:59:25,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:59:25,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:59:25,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:59:25,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:59:25,904 INFO L87 Difference]: Start difference. First operand 85388 states and 114454 transitions. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 3 states have internal predecessors, (207), 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)