./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.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 14116a47f3f4a2a033e7a89d50301476fe518641457365dd95d98c606e6851b5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 04:01:41,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 04:01:41,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 04:01:41,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 04:01:41,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 04:01:41,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 04:01:41,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 04:01:41,614 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 04:01:41,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 04:01:41,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 04:01:41,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 04:01:41,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 04:01:41,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 04:01:41,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 04:01:41,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 04:01:41,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 04:01:41,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 04:01:41,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 04:01:41,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 04:01:41,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 04:01:41,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 04:01:41,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 04:01:41,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 04:01:41,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 04:01:41,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 04:01:41,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 04:01:41,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 04:01:41,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 04:01:41,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 04:01:41,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 04:01:41,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 04:01:41,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 04:01:41,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 04:01:41,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 04:01:41,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 04:01:41,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 04:01:41,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 04:01:41,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 04:01:41,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 04:01:41,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 04:01:41,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 04:01:41,642 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 04:01:41,673 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 04:01:41,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 04:01:41,677 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 04:01:41,677 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 04:01:41,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 04:01:41,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 04:01:41,678 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 04:01:41,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 04:01:41,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 04:01:41,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 04:01:41,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 04:01:41,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 04:01:41,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 04:01:41,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 04:01:41,681 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 04:01:41,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 04:01:41,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 04:01:41,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 04:01:41,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 04:01:41,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 04:01:41,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 04:01:41,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 04:01:41,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 04:01:41,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 04:01:41,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 04:01:41,683 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 04:01:41,683 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 04:01:41,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 04:01:41,684 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 04:01:41,684 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14116a47f3f4a2a033e7a89d50301476fe518641457365dd95d98c606e6851b5 [2021-11-23 04:01:41,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 04:01:41,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 04:01:41,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 04:01:41,903 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 04:01:41,904 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 04:01:41,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-23 04:01:41,968 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c2a9d836/26ece1f9b2ab40fca7a7ddce93a776d9/FLAG50b06f957 [2021-11-23 04:01:42,745 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 04:01:42,746 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-23 04:01:42,816 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c2a9d836/26ece1f9b2ab40fca7a7ddce93a776d9/FLAG50b06f957 [2021-11-23 04:01:43,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c2a9d836/26ece1f9b2ab40fca7a7ddce93a776d9 [2021-11-23 04:01:43,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 04:01:43,259 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 04:01:43,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 04:01:43,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 04:01:43,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 04:01:43,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:01:43" (1/1) ... [2021-11-23 04:01:43,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58338752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:43, skipping insertion in model container [2021-11-23 04:01:43,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:01:43" (1/1) ... [2021-11-23 04:01:43,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 04:01:43,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 04:01:47,028 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2021-11-23 04:01:47,031 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2021-11-23 04:01:47,031 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2021-11-23 04:01:47,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2021-11-23 04:01:47,056 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 04:01:47,132 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 04:01:47,534 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2021-11-23 04:01:47,535 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2021-11-23 04:01:47,536 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2021-11-23 04:01:47,536 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2021-11-23 04:01:47,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 04:01:47,824 INFO L208 MainTranslator]: Completed translation [2021-11-23 04:01:47,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:47 WrapperNode [2021-11-23 04:01:47,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 04:01:47,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 04:01:47,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 04:01:47,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 04:01:47,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:47" (1/1) ... [2021-11-23 04:01:47,960 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:47" (1/1) ... [2021-11-23 04:01:49,532 INFO L137 Inliner]: procedures = 642, calls = 3531, calls flagged for inlining = 1305, calls inlined = 4845, statements flattened = 58899 [2021-11-23 04:01:49,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 04:01:49,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 04:01:49,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 04:01:49,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 04:01:49,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:47" (1/1) ... [2021-11-23 04:01:49,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:47" (1/1) ... [2021-11-23 04:01:50,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:47" (1/1) ... [2021-11-23 04:01:50,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:47" (1/1) ... [2021-11-23 04:01:51,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:47" (1/1) ... [2021-11-23 04:01:51,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:47" (1/1) ... [2021-11-23 04:01:51,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:47" (1/1) ... [2021-11-23 04:01:52,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 04:01:52,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 04:01:52,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 04:01:52,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 04:01:52,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:47" (1/1) ... [2021-11-23 04:01:52,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 04:01:52,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 04:01:52,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 04:01:52,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 04:01:52,178 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw_vf [2021-11-23 04:01:52,179 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw_vf [2021-11-23 04:01:52,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 04:01:52,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 04:01:52,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 04:01:52,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 04:01:52,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 04:01:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 04:01:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 04:01:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_posted_mbx [2021-11-23 04:01:52,180 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_posted_mbx [2021-11-23 04:01:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_hw_vf [2021-11-23 04:01:52,180 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_hw_vf [2021-11-23 04:01:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 04:01:52,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 04:01:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_ack [2021-11-23 04:01:52,181 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_ack [2021-11-23 04:01:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 04:01:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 04:01:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set_vf [2021-11-23 04:01:52,182 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set_vf [2021-11-23 04:01:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link_vf [2021-11-23 04:01:52,182 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link_vf [2021-11-23 04:01:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 04:01:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 04:01:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-23 04:01:52,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-23 04:01:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 04:01:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-23 04:01:52,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-23 04:01:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_msg [2021-11-23 04:01:52,183 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_msg [2021-11-23 04:01:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 04:01:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_posted_mbx [2021-11-23 04:01:52,184 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_posted_mbx [2021-11-23 04:01:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 04:01:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-23 04:01:53,498 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 04:01:53,499 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 04:02:13,295 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-23 04:02:13,296 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res#1 := 0; [2021-11-23 04:02:13,296 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-23 04:02:13,296 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-23 04:02:13,297 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-23 04:02:13,298 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 04:02:13,318 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 04:02:13,372 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 04:02:13,372 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 04:02:13,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:02:13 BoogieIcfgContainer [2021-11-23 04:02:13,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 04:02:13,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 04:02:13,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 04:02:13,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 04:02:13,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:01:43" (1/3) ... [2021-11-23 04:02:13,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ffe24e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:02:13, skipping insertion in model container [2021-11-23 04:02:13,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:47" (2/3) ... [2021-11-23 04:02:13,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ffe24e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:02:13, skipping insertion in model container [2021-11-23 04:02:13,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:02:13" (3/3) ... [2021-11-23 04:02:13,393 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-23 04:02:13,397 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 04:02:13,397 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2021-11-23 04:02:13,480 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 04:02:13,487 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 04:02:13,487 INFO L340 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2021-11-23 04:02:13,611 INFO L276 IsEmpty]: Start isEmpty. Operand has 9895 states, 9728 states have (on average 1.3101356907894737) internal successors, (12745), 9769 states have internal predecessors, (12745), 115 states have call successors, (115), 10 states have call predecessors, (115), 10 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2021-11-23 04:02:13,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-23 04:02:13,622 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:02:13,623 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] [2021-11-23 04:02:13,624 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-23 04:02:13,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:02:13,628 INFO L85 PathProgramCache]: Analyzing trace with hash 269452245, now seen corresponding path program 1 times [2021-11-23 04:02:13,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:02:13,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996665492] [2021-11-23 04:02:13,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:02:13,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:02:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:02:14,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:02:14,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:02:14,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996665492] [2021-11-23 04:02:14,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996665492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:02:14,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:02:14,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:02:14,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140434648] [2021-11-23 04:02:14,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:02:14,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:02:14,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:02:14,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:02:14,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:02:14,287 INFO L87 Difference]: Start difference. First operand has 9895 states, 9728 states have (on average 1.3101356907894737) internal successors, (12745), 9769 states have internal predecessors, (12745), 115 states have call successors, (115), 10 states have call predecessors, (115), 10 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:15,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:02:15,331 INFO L93 Difference]: Finished difference Result 28941 states and 37979 transitions. [2021-11-23 04:02:15,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:02:15,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-11-23 04:02:15,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:02:15,434 INFO L225 Difference]: With dead ends: 28941 [2021-11-23 04:02:15,434 INFO L226 Difference]: Without dead ends: 18709 [2021-11-23 04:02:15,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:02:15,472 INFO L933 BasicCegarLoop]: 12893 mSDtfsCounter, 12216 mSDsluCounter, 12729 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12216 SdHoareTripleChecker+Valid, 25622 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 04:02:15,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12216 Valid, 25622 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 04:02:15,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18709 states. [2021-11-23 04:02:15,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18709 to 18709. [2021-11-23 04:02:16,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18709 states, 18417 states have (on average 1.27089102459684) internal successors, (23406), 18458 states have internal predecessors, (23406), 230 states have call successors, (230), 20 states have call predecessors, (230), 20 states have return successors, (230), 230 states have call predecessors, (230), 230 states have call successors, (230) [2021-11-23 04:02:16,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18709 states to 18709 states and 23866 transitions. [2021-11-23 04:02:16,084 INFO L78 Accepts]: Start accepts. Automaton has 18709 states and 23866 transitions. Word has length 92 [2021-11-23 04:02:16,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:02:16,087 INFO L470 AbstractCegarLoop]: Abstraction has 18709 states and 23866 transitions. [2021-11-23 04:02:16,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:16,088 INFO L276 IsEmpty]: Start isEmpty. Operand 18709 states and 23866 transitions. [2021-11-23 04:02:16,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-23 04:02:16,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:02:16,104 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 04:02:16,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 04:02:16,105 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-23 04:02:16,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:02:16,109 INFO L85 PathProgramCache]: Analyzing trace with hash 134097398, now seen corresponding path program 1 times [2021-11-23 04:02:16,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:02:16,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894843818] [2021-11-23 04:02:16,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:02:16,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:02:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:02:16,423 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:02:16,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:02:16,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894843818] [2021-11-23 04:02:16,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894843818] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:02:16,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:02:16,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:02:16,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63560126] [2021-11-23 04:02:16,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:02:16,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:02:16,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:02:16,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:02:16,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:02:16,436 INFO L87 Difference]: Start difference. First operand 18709 states and 23866 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) 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) [2021-11-23 04:02:17,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:02:17,198 INFO L93 Difference]: Finished difference Result 37220 states and 47515 transitions. [2021-11-23 04:02:17,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:02:17,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) 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 122 [2021-11-23 04:02:17,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:02:17,315 INFO L225 Difference]: With dead ends: 37220 [2021-11-23 04:02:17,316 INFO L226 Difference]: Without dead ends: 27848 [2021-11-23 04:02:17,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:02:17,361 INFO L933 BasicCegarLoop]: 23858 mSDtfsCounter, 11697 mSDsluCounter, 12137 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11697 SdHoareTripleChecker+Valid, 35995 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 04:02:17,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11697 Valid, 35995 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 04:02:17,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27848 states. [2021-11-23 04:02:17,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27848 to 27848. [2021-11-23 04:02:18,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27848 states, 27431 states have (on average 1.2714811709379898) internal successors, (34878), 27472 states have internal predecessors, (34878), 345 states have call successors, (345), 30 states have call predecessors, (345), 30 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2021-11-23 04:02:18,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27848 states to 27848 states and 35568 transitions. [2021-11-23 04:02:18,132 INFO L78 Accepts]: Start accepts. Automaton has 27848 states and 35568 transitions. Word has length 122 [2021-11-23 04:02:18,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:02:18,135 INFO L470 AbstractCegarLoop]: Abstraction has 27848 states and 35568 transitions. [2021-11-23 04:02:18,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) 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) [2021-11-23 04:02:18,135 INFO L276 IsEmpty]: Start isEmpty. Operand 27848 states and 35568 transitions. [2021-11-23 04:02:18,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-23 04:02:18,146 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:02:18,146 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 04:02:18,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 04:02:18,147 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-23 04:02:18,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:02:18,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1454250504, now seen corresponding path program 1 times [2021-11-23 04:02:18,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:02:18,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977385176] [2021-11-23 04:02:18,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:02:18,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:02:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:02:18,548 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 04:02:18,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:02:18,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977385176] [2021-11-23 04:02:18,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977385176] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:02:18,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:02:18,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:02:18,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303524428] [2021-11-23 04:02:18,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:02:18,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:02:18,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:02:18,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:02:18,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:02:18,555 INFO L87 Difference]: Start difference. First operand 27848 states and 35568 transitions. Second operand has 4 states, 4 states have (on average 28.25) 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) [2021-11-23 04:02:19,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:02:19,310 INFO L93 Difference]: Finished difference Result 27848 states and 35568 transitions. [2021-11-23 04:02:19,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:02:19,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) 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 122 [2021-11-23 04:02:19,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:02:19,400 INFO L225 Difference]: With dead ends: 27848 [2021-11-23 04:02:19,400 INFO L226 Difference]: Without dead ends: 27842 [2021-11-23 04:02:19,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:02:19,431 INFO L933 BasicCegarLoop]: 12151 mSDtfsCounter, 12050 mSDsluCounter, 12037 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12050 SdHoareTripleChecker+Valid, 24188 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 04:02:19,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12050 Valid, 24188 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 04:02:19,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27842 states. [2021-11-23 04:02:20,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27842 to 27842. [2021-11-23 04:02:20,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27842 states, 27428 states have (on average 1.2714014875309902) internal successors, (34872), 27466 states have internal predecessors, (34872), 345 states have call successors, (345), 30 states have call predecessors, (345), 30 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2021-11-23 04:02:20,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27842 states to 27842 states and 35562 transitions. [2021-11-23 04:02:20,373 INFO L78 Accepts]: Start accepts. Automaton has 27842 states and 35562 transitions. Word has length 122 [2021-11-23 04:02:20,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:02:20,375 INFO L470 AbstractCegarLoop]: Abstraction has 27842 states and 35562 transitions. [2021-11-23 04:02:20,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) 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) [2021-11-23 04:02:20,375 INFO L276 IsEmpty]: Start isEmpty. Operand 27842 states and 35562 transitions. [2021-11-23 04:02:20,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-23 04:02:20,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:02:20,382 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 04:02:20,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 04:02:20,382 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-23 04:02:20,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:02:20,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1670182885, now seen corresponding path program 1 times [2021-11-23 04:02:20,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:02:20,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356756272] [2021-11-23 04:02:20,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:02:20,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:02:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:02:20,699 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 04:02:20,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:02:20,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356756272] [2021-11-23 04:02:20,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356756272] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:02:20,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:02:20,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:02:20,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161617485] [2021-11-23 04:02:20,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:02:20,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:02:20,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:02:20,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:02:20,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:02:20,702 INFO L87 Difference]: Start difference. First operand 27842 states and 35562 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:21,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:02:21,465 INFO L93 Difference]: Finished difference Result 27842 states and 35562 transitions. [2021-11-23 04:02:21,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:02:21,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 124 [2021-11-23 04:02:21,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:02:21,551 INFO L225 Difference]: With dead ends: 27842 [2021-11-23 04:02:21,552 INFO L226 Difference]: Without dead ends: 27836 [2021-11-23 04:02:21,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:02:21,574 INFO L933 BasicCegarLoop]: 12145 mSDtfsCounter, 12039 mSDsluCounter, 12034 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12039 SdHoareTripleChecker+Valid, 24179 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 04:02:21,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12039 Valid, 24179 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 04:02:21,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27836 states. [2021-11-23 04:02:22,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27836 to 27836. [2021-11-23 04:02:22,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27836 states, 27425 states have (on average 1.2713217866909754) internal successors, (34866), 27460 states have internal predecessors, (34866), 345 states have call successors, (345), 30 states have call predecessors, (345), 30 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2021-11-23 04:02:22,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27836 states to 27836 states and 35556 transitions. [2021-11-23 04:02:22,446 INFO L78 Accepts]: Start accepts. Automaton has 27836 states and 35556 transitions. Word has length 124 [2021-11-23 04:02:22,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:02:22,447 INFO L470 AbstractCegarLoop]: Abstraction has 27836 states and 35556 transitions. [2021-11-23 04:02:22,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:22,447 INFO L276 IsEmpty]: Start isEmpty. Operand 27836 states and 35556 transitions. [2021-11-23 04:02:22,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-23 04:02:22,455 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:02:22,458 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 04:02:22,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 04:02:22,458 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-23 04:02:22,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:02:22,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1272196798, now seen corresponding path program 1 times [2021-11-23 04:02:22,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:02:22,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269579480] [2021-11-23 04:02:22,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:02:22,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:02:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:02:22,755 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 04:02:22,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:02:22,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269579480] [2021-11-23 04:02:22,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269579480] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:02:22,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:02:22,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:02:22,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972239476] [2021-11-23 04:02:22,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:02:22,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:02:22,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:02:22,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:02:22,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:02:22,758 INFO L87 Difference]: Start difference. First operand 27836 states and 35556 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:23,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:02:23,680 INFO L93 Difference]: Finished difference Result 27836 states and 35556 transitions. [2021-11-23 04:02:23,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:02:23,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 126 [2021-11-23 04:02:23,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:02:23,762 INFO L225 Difference]: With dead ends: 27836 [2021-11-23 04:02:23,762 INFO L226 Difference]: Without dead ends: 27830 [2021-11-23 04:02:23,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:02:23,787 INFO L933 BasicCegarLoop]: 12139 mSDtfsCounter, 12031 mSDsluCounter, 12031 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12031 SdHoareTripleChecker+Valid, 24170 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 04:02:23,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12031 Valid, 24170 Invalid, 121 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [43 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 04:02:23,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27830 states. [2021-11-23 04:02:24,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27830 to 27830. [2021-11-23 04:02:24,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27830 states, 27422 states have (on average 1.2712420684122239) internal successors, (34860), 27454 states have internal predecessors, (34860), 345 states have call successors, (345), 30 states have call predecessors, (345), 30 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2021-11-23 04:02:24,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27830 states to 27830 states and 35550 transitions. [2021-11-23 04:02:24,602 INFO L78 Accepts]: Start accepts. Automaton has 27830 states and 35550 transitions. Word has length 126 [2021-11-23 04:02:24,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:02:24,603 INFO L470 AbstractCegarLoop]: Abstraction has 27830 states and 35550 transitions. [2021-11-23 04:02:24,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:24,603 INFO L276 IsEmpty]: Start isEmpty. Operand 27830 states and 35550 transitions. [2021-11-23 04:02:24,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-23 04:02:24,613 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:02:24,613 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 04:02:24,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 04:02:24,613 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-23 04:02:24,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:02:24,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1484375583, now seen corresponding path program 1 times [2021-11-23 04:02:24,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:02:24,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971029805] [2021-11-23 04:02:24,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:02:24,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:02:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:02:25,059 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 04:02:25,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:02:25,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971029805] [2021-11-23 04:02:25,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971029805] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:02:25,060 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:02:25,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:02:25,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333591127] [2021-11-23 04:02:25,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:02:25,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:02:25,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:02:25,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:02:25,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:02:25,062 INFO L87 Difference]: Start difference. First operand 27830 states and 35550 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:25,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:02:25,820 INFO L93 Difference]: Finished difference Result 27830 states and 35550 transitions. [2021-11-23 04:02:25,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:02:25,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 [2021-11-23 04:02:25,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:02:25,891 INFO L225 Difference]: With dead ends: 27830 [2021-11-23 04:02:25,891 INFO L226 Difference]: Without dead ends: 27824 [2021-11-23 04:02:25,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:02:25,910 INFO L933 BasicCegarLoop]: 12133 mSDtfsCounter, 12023 mSDsluCounter, 12028 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12023 SdHoareTripleChecker+Valid, 24161 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 04:02:25,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12023 Valid, 24161 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 04:02:25,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27824 states. [2021-11-23 04:02:26,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27824 to 27824. [2021-11-23 04:02:26,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27824 states, 27419 states have (on average 1.2711623326890114) internal successors, (34854), 27448 states have internal predecessors, (34854), 345 states have call successors, (345), 30 states have call predecessors, (345), 30 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2021-11-23 04:02:26,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27824 states to 27824 states and 35544 transitions. [2021-11-23 04:02:26,770 INFO L78 Accepts]: Start accepts. Automaton has 27824 states and 35544 transitions. Word has length 128 [2021-11-23 04:02:26,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:02:26,770 INFO L470 AbstractCegarLoop]: Abstraction has 27824 states and 35544 transitions. [2021-11-23 04:02:26,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:26,771 INFO L276 IsEmpty]: Start isEmpty. Operand 27824 states and 35544 transitions. [2021-11-23 04:02:26,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-23 04:02:26,779 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:02:26,780 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 04:02:26,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 04:02:26,780 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-23 04:02:26,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:02:26,781 INFO L85 PathProgramCache]: Analyzing trace with hash -555611772, now seen corresponding path program 1 times [2021-11-23 04:02:26,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:02:26,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193396366] [2021-11-23 04:02:26,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:02:26,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:02:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:02:27,040 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 04:02:27,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:02:27,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193396366] [2021-11-23 04:02:27,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193396366] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:02:27,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:02:27,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:02:27,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708282805] [2021-11-23 04:02:27,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:02:27,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:02:27,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:02:27,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:02:27,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:02:27,043 INFO L87 Difference]: Start difference. First operand 27824 states and 35544 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:27,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:02:27,960 INFO L93 Difference]: Finished difference Result 27824 states and 35544 transitions. [2021-11-23 04:02:27,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:02:27,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 130 [2021-11-23 04:02:27,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:02:28,037 INFO L225 Difference]: With dead ends: 27824 [2021-11-23 04:02:28,037 INFO L226 Difference]: Without dead ends: 27818 [2021-11-23 04:02:28,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:02:28,063 INFO L933 BasicCegarLoop]: 12127 mSDtfsCounter, 12015 mSDsluCounter, 12025 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12015 SdHoareTripleChecker+Valid, 24152 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 04:02:28,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12015 Valid, 24152 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 04:02:28,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27818 states. [2021-11-23 04:02:28,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27818 to 27818. [2021-11-23 04:02:29,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27818 states, 27416 states have (on average 1.2710825795156113) internal successors, (34848), 27442 states have internal predecessors, (34848), 345 states have call successors, (345), 30 states have call predecessors, (345), 30 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2021-11-23 04:02:29,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27818 states to 27818 states and 35538 transitions. [2021-11-23 04:02:29,080 INFO L78 Accepts]: Start accepts. Automaton has 27818 states and 35538 transitions. Word has length 130 [2021-11-23 04:02:29,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:02:29,081 INFO L470 AbstractCegarLoop]: Abstraction has 27818 states and 35538 transitions. [2021-11-23 04:02:29,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:29,081 INFO L276 IsEmpty]: Start isEmpty. Operand 27818 states and 35538 transitions. [2021-11-23 04:02:29,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-23 04:02:29,092 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:02:29,092 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 04:02:29,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 04:02:29,093 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-23 04:02:29,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:02:29,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1366786649, now seen corresponding path program 1 times [2021-11-23 04:02:29,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:02:29,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31571303] [2021-11-23 04:02:29,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:02:29,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:02:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:02:29,363 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 04:02:29,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:02:29,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31571303] [2021-11-23 04:02:29,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31571303] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:02:29,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:02:29,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:02:29,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144449612] [2021-11-23 04:02:29,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:02:29,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:02:29,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:02:29,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:02:29,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:02:29,366 INFO L87 Difference]: Start difference. First operand 27818 states and 35538 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:30,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:02:30,179 INFO L93 Difference]: Finished difference Result 27818 states and 35538 transitions. [2021-11-23 04:02:30,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:02:30,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 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 132 [2021-11-23 04:02:30,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:02:30,255 INFO L225 Difference]: With dead ends: 27818 [2021-11-23 04:02:30,255 INFO L226 Difference]: Without dead ends: 27812 [2021-11-23 04:02:30,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:02:30,277 INFO L933 BasicCegarLoop]: 12121 mSDtfsCounter, 12007 mSDsluCounter, 12022 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12007 SdHoareTripleChecker+Valid, 24143 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 04:02:30,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12007 Valid, 24143 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 04:02:30,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27812 states. [2021-11-23 04:02:31,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27812 to 27812. [2021-11-23 04:02:31,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27812 states, 27413 states have (on average 1.2710028088862948) internal successors, (34842), 27436 states have internal predecessors, (34842), 345 states have call successors, (345), 30 states have call predecessors, (345), 30 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2021-11-23 04:02:31,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27812 states to 27812 states and 35532 transitions. [2021-11-23 04:02:31,382 INFO L78 Accepts]: Start accepts. Automaton has 27812 states and 35532 transitions. Word has length 132 [2021-11-23 04:02:31,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:02:31,382 INFO L470 AbstractCegarLoop]: Abstraction has 27812 states and 35532 transitions. [2021-11-23 04:02:31,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:31,382 INFO L276 IsEmpty]: Start isEmpty. Operand 27812 states and 35532 transitions. [2021-11-23 04:02:31,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-23 04:02:31,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:02:31,393 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 04:02:31,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 04:02:31,393 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-23 04:02:31,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:02:31,394 INFO L85 PathProgramCache]: Analyzing trace with hash 778204746, now seen corresponding path program 1 times [2021-11-23 04:02:31,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:02:31,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569255835] [2021-11-23 04:02:31,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:02:31,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:02:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:02:31,664 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 04:02:31,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:02:31,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569255835] [2021-11-23 04:02:31,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569255835] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:02:31,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:02:31,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:02:31,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29114106] [2021-11-23 04:02:31,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:02:31,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:02:31,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:02:31,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:02:31,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:02:31,671 INFO L87 Difference]: Start difference. First operand 27812 states and 35532 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:32,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:02:32,494 INFO L93 Difference]: Finished difference Result 27812 states and 35532 transitions. [2021-11-23 04:02:32,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:02:32,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 134 [2021-11-23 04:02:32,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:02:32,557 INFO L225 Difference]: With dead ends: 27812 [2021-11-23 04:02:32,557 INFO L226 Difference]: Without dead ends: 27806 [2021-11-23 04:02:32,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:02:32,578 INFO L933 BasicCegarLoop]: 12115 mSDtfsCounter, 11999 mSDsluCounter, 12019 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11999 SdHoareTripleChecker+Valid, 24134 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 04:02:32,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11999 Valid, 24134 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 04:02:32,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27806 states. [2021-11-23 04:02:33,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27806 to 27806. [2021-11-23 04:02:33,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27806 states, 27410 states have (on average 1.2709230207953301) internal successors, (34836), 27430 states have internal predecessors, (34836), 345 states have call successors, (345), 30 states have call predecessors, (345), 30 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2021-11-23 04:02:33,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27806 states to 27806 states and 35526 transitions. [2021-11-23 04:02:33,633 INFO L78 Accepts]: Start accepts. Automaton has 27806 states and 35526 transitions. Word has length 134 [2021-11-23 04:02:33,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:02:33,634 INFO L470 AbstractCegarLoop]: Abstraction has 27806 states and 35526 transitions. [2021-11-23 04:02:33,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:33,634 INFO L276 IsEmpty]: Start isEmpty. Operand 27806 states and 35526 transitions. [2021-11-23 04:02:33,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-23 04:02:33,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:02:33,645 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 04:02:33,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 04:02:33,646 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-23 04:02:33,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:02:33,647 INFO L85 PathProgramCache]: Analyzing trace with hash 530633581, now seen corresponding path program 1 times [2021-11-23 04:02:33,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:02:33,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212160346] [2021-11-23 04:02:33,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:02:33,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:02:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:02:33,905 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 04:02:33,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:02:33,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212160346] [2021-11-23 04:02:33,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212160346] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:02:33,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:02:33,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:02:33,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307521265] [2021-11-23 04:02:33,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:02:33,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:02:33,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:02:33,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:02:33,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:02:33,908 INFO L87 Difference]: Start difference. First operand 27806 states and 35526 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:34,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:02:34,665 INFO L93 Difference]: Finished difference Result 27806 states and 35526 transitions. [2021-11-23 04:02:34,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:02:34,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 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 136 [2021-11-23 04:02:34,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:02:34,714 INFO L225 Difference]: With dead ends: 27806 [2021-11-23 04:02:34,714 INFO L226 Difference]: Without dead ends: 27800 [2021-11-23 04:02:34,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:02:34,729 INFO L933 BasicCegarLoop]: 12109 mSDtfsCounter, 11991 mSDsluCounter, 12016 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11991 SdHoareTripleChecker+Valid, 24125 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 04:02:34,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11991 Valid, 24125 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 04:02:34,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27800 states. [2021-11-23 04:02:35,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27800 to 27800. [2021-11-23 04:02:35,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27800 states, 27407 states have (on average 1.2708432152369833) internal successors, (34830), 27424 states have internal predecessors, (34830), 345 states have call successors, (345), 30 states have call predecessors, (345), 30 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2021-11-23 04:02:35,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27800 states to 27800 states and 35520 transitions. [2021-11-23 04:02:35,656 INFO L78 Accepts]: Start accepts. Automaton has 27800 states and 35520 transitions. Word has length 136 [2021-11-23 04:02:35,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:02:35,657 INFO L470 AbstractCegarLoop]: Abstraction has 27800 states and 35520 transitions. [2021-11-23 04:02:35,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:35,657 INFO L276 IsEmpty]: Start isEmpty. Operand 27800 states and 35520 transitions. [2021-11-23 04:02:35,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-23 04:02:35,668 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:02:35,669 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 04:02:35,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 04:02:35,670 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-23 04:02:35,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:02:35,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1162054384, now seen corresponding path program 1 times [2021-11-23 04:02:35,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:02:35,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688399298] [2021-11-23 04:02:35,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:02:35,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:02:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:02:35,938 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 04:02:35,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:02:35,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688399298] [2021-11-23 04:02:35,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688399298] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:02:35,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:02:35,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:02:35,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130706860] [2021-11-23 04:02:35,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:02:35,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:02:35,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:02:35,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:02:35,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:02:35,941 INFO L87 Difference]: Start difference. First operand 27800 states and 35520 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:36,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:02:36,838 INFO L93 Difference]: Finished difference Result 27800 states and 35520 transitions. [2021-11-23 04:02:36,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:02:36,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2021-11-23 04:02:36,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:02:36,891 INFO L225 Difference]: With dead ends: 27800 [2021-11-23 04:02:36,891 INFO L226 Difference]: Without dead ends: 27794 [2021-11-23 04:02:36,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:02:36,908 INFO L933 BasicCegarLoop]: 12103 mSDtfsCounter, 11983 mSDsluCounter, 12013 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11983 SdHoareTripleChecker+Valid, 24116 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 04:02:36,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11983 Valid, 24116 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 04:02:36,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27794 states. [2021-11-23 04:02:37,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27794 to 27794. [2021-11-23 04:02:37,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27794 states, 27404 states have (on average 1.2707633922055175) internal successors, (34824), 27418 states have internal predecessors, (34824), 345 states have call successors, (345), 30 states have call predecessors, (345), 30 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2021-11-23 04:02:37,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27794 states to 27794 states and 35514 transitions. [2021-11-23 04:02:37,698 INFO L78 Accepts]: Start accepts. Automaton has 27794 states and 35514 transitions. Word has length 138 [2021-11-23 04:02:37,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:02:37,698 INFO L470 AbstractCegarLoop]: Abstraction has 27794 states and 35514 transitions. [2021-11-23 04:02:37,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:37,699 INFO L276 IsEmpty]: Start isEmpty. Operand 27794 states and 35514 transitions. [2021-11-23 04:02:37,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-23 04:02:37,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:02:37,710 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 04:02:37,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 04:02:37,710 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-23 04:02:37,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:02:37,711 INFO L85 PathProgramCache]: Analyzing trace with hash -42583245, now seen corresponding path program 1 times [2021-11-23 04:02:37,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:02:37,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15364226] [2021-11-23 04:02:37,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:02:37,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:02:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:02:37,954 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 04:02:37,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:02:37,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15364226] [2021-11-23 04:02:37,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15364226] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:02:37,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:02:37,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:02:37,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266977661] [2021-11-23 04:02:37,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:02:37,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:02:37,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:02:37,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:02:37,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:02:37,957 INFO L87 Difference]: Start difference. First operand 27794 states and 35514 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:38,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:02:38,683 INFO L93 Difference]: Finished difference Result 27794 states and 35514 transitions. [2021-11-23 04:02:38,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:02:38,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 140 [2021-11-23 04:02:38,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:02:38,733 INFO L225 Difference]: With dead ends: 27794 [2021-11-23 04:02:38,733 INFO L226 Difference]: Without dead ends: 27788 [2021-11-23 04:02:38,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:02:38,749 INFO L933 BasicCegarLoop]: 12097 mSDtfsCounter, 11975 mSDsluCounter, 12010 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11975 SdHoareTripleChecker+Valid, 24107 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 04:02:38,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11975 Valid, 24107 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 04:02:38,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27788 states. [2021-11-23 04:02:39,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27788 to 27788. [2021-11-23 04:02:39,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27788 states, 27401 states have (on average 1.2706835516951935) internal successors, (34818), 27412 states have internal predecessors, (34818), 345 states have call successors, (345), 30 states have call predecessors, (345), 30 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2021-11-23 04:02:39,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27788 states to 27788 states and 35508 transitions. [2021-11-23 04:02:39,753 INFO L78 Accepts]: Start accepts. Automaton has 27788 states and 35508 transitions. Word has length 140 [2021-11-23 04:02:39,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:02:39,754 INFO L470 AbstractCegarLoop]: Abstraction has 27788 states and 35508 transitions. [2021-11-23 04:02:39,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:39,754 INFO L276 IsEmpty]: Start isEmpty. Operand 27788 states and 35508 transitions. [2021-11-23 04:02:39,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-23 04:02:39,765 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:02:39,765 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 04:02:39,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 04:02:39,766 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-23 04:02:39,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:02:39,766 INFO L85 PathProgramCache]: Analyzing trace with hash 2027357654, now seen corresponding path program 1 times [2021-11-23 04:02:39,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:02:39,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237961476] [2021-11-23 04:02:39,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:02:39,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:02:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:02:40,010 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 04:02:40,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:02:40,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237961476] [2021-11-23 04:02:40,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237961476] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:02:40,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:02:40,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:02:40,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378189098] [2021-11-23 04:02:40,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:02:40,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:02:40,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:02:40,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:02:40,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:02:40,013 INFO L87 Difference]: Start difference. First operand 27788 states and 35508 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:02:41,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:02:41,042 INFO L93 Difference]: Finished difference Result 27788 states and 35508 transitions. [2021-11-23 04:02:41,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:02:41,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 142 [2021-11-23 04:02:41,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:02:41,096 INFO L225 Difference]: With dead ends: 27788 [2021-11-23 04:02:41,096 INFO L226 Difference]: Without dead ends: 27782 [2021-11-23 04:02:41,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:02:41,113 INFO L933 BasicCegarLoop]: 12091 mSDtfsCounter, 11967 mSDsluCounter, 12007 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11967 SdHoareTripleChecker+Valid, 24098 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 04:02:41,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11967 Valid, 24098 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 04:02:41,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27782 states.