./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.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 5afcd851c0eed3ee93d773a0172936a989a39cd6889ca2587c3b833a21bc8a3a --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 22:55:42,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 22:55:42,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 22:55:42,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 22:55:42,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 22:55:42,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 22:55:42,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 22:55:42,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 22:55:42,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 22:55:42,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 22:55:42,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 22:55:42,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 22:55:42,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 22:55:42,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 22:55:42,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 22:55:42,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 22:55:42,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 22:55:42,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 22:55:42,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 22:55:42,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 22:55:42,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 22:55:42,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 22:55:42,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 22:55:42,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 22:55:42,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 22:55:42,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 22:55:42,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 22:55:42,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 22:55:42,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 22:55:42,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 22:55:42,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 22:55:42,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 22:55:42,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 22:55:42,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 22:55:42,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 22:55:42,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 22:55:42,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 22:55:42,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 22:55:42,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 22:55:42,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 22:55:42,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 22:55:42,873 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 22:55:42,899 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 22:55:42,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 22:55:42,901 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 22:55:42,901 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 22:55:42,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 22:55:42,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 22:55:42,902 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 22:55:42,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 22:55:42,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 22:55:42,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 22:55:42,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 22:55:42,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 22:55:42,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 22:55:42,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 22:55:42,904 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 22:55:42,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 22:55:42,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 22:55:42,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 22:55:42,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 22:55:42,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 22:55:42,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 22:55:42,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 22:55:42,905 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 22:55:42,905 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 22:55:42,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 22:55:42,905 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 22:55:42,906 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 22:55:42,906 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 22:55:42,906 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 22:55:42,906 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5afcd851c0eed3ee93d773a0172936a989a39cd6889ca2587c3b833a21bc8a3a [2021-11-05 22:55:43,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 22:55:43,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 22:55:43,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 22:55:43,234 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 22:55:43,235 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 22:55:43,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-05 22:55:43,312 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56833d16e/804f013a9e5847a58ea43f26e64170b4/FLAGa5df17b4c [2021-11-05 22:55:44,035 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 22:55:44,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-05 22:55:44,080 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56833d16e/804f013a9e5847a58ea43f26e64170b4/FLAGa5df17b4c [2021-11-05 22:55:44,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56833d16e/804f013a9e5847a58ea43f26e64170b4 [2021-11-05 22:55:44,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 22:55:44,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 22:55:44,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 22:55:44,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 22:55:44,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 22:55:44,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:55:44" (1/1) ... [2021-11-05 22:55:44,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14920d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:55:44, skipping insertion in model container [2021-11-05 22:55:44,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:55:44" (1/1) ... [2021-11-05 22:55:44,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 22:55:44,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 22:55:46,327 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410165,410178] [2021-11-05 22:55:46,329 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410334,410347] [2021-11-05 22:55:46,329 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410501,410514] [2021-11-05 22:55:46,330 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410669,410682] [2021-11-05 22:55:46,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 22:55:46,400 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 22:55:46,658 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410165,410178] [2021-11-05 22:55:46,659 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410334,410347] [2021-11-05 22:55:46,659 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410501,410514] [2021-11-05 22:55:46,659 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410669,410682] [2021-11-05 22:55:46,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 22:55:46,806 INFO L208 MainTranslator]: Completed translation [2021-11-05 22:55:46,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:55:46 WrapperNode [2021-11-05 22:55:46,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 22:55:46,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 22:55:46,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 22:55:46,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 22:55:46,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:55:46" (1/1) ... [2021-11-05 22:55:46,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:55:46" (1/1) ... [2021-11-05 22:55:49,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 22:55:49,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 22:55:49,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 22:55:49,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 22:55:49,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:55:46" (1/1) ... [2021-11-05 22:55:49,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:55:46" (1/1) ... [2021-11-05 22:55:49,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:55:46" (1/1) ... [2021-11-05 22:55:49,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:55:46" (1/1) ... [2021-11-05 22:55:50,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:55:46" (1/1) ... [2021-11-05 22:55:50,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:55:46" (1/1) ... [2021-11-05 22:55:50,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:55:46" (1/1) ... [2021-11-05 22:55:51,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 22:55:51,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 22:55:51,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 22:55:51,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 22:55:51,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:55:46" (1/1) ... [2021-11-05 22:55:51,101 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 22:55:51,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 22:55:51,119 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) [2021-11-05 22:55:51,149 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 [2021-11-05 22:55:51,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 22:55:51,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 22:55:51,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 22:55:51,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 22:55:51,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 22:55:51,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 22:55:51,160 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 22:55:51,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 22:55:51,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 22:55:51,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 22:55:51,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 22:55:51,160 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-05 22:55:51,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 22:55:51,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 22:55:51,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 22:55:51,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 22:55:51,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 22:56:34,390 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_2_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset; [2021-11-05 22:56:34,392 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11626: #t~ret2343 := main_#res; [2021-11-05 22:56:34,395 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 22:56:34,395 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_16_returnLabel: main_#res := 0; [2021-11-05 22:56:34,442 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 22:56:34,442 INFO L299 CfgBuilder]: Removed 22860 assume(true) statements. [2021-11-05 22:56:34,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:56:34 BoogieIcfgContainer [2021-11-05 22:56:34,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 22:56:34,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 22:56:34,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 22:56:34,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 22:56:34,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 10:55:44" (1/3) ... [2021-11-05 22:56:34,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a2be56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:56:34, skipping insertion in model container [2021-11-05 22:56:34,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:55:46" (2/3) ... [2021-11-05 22:56:34,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a2be56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:56:34, skipping insertion in model container [2021-11-05 22:56:34,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:56:34" (3/3) ... [2021-11-05 22:56:34,460 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-05 22:56:34,464 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 22:56:34,464 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 167 error locations. [2021-11-05 22:56:34,535 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 22:56:34,541 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 [2021-11-05 22:56:34,541 INFO L340 AbstractCegarLoop]: Starting to check reachability of 167 error locations. [2021-11-05 22:56:34,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 14754 states, 14587 states have (on average 1.3150065126482484) internal successors, (19182), 14753 states have internal predecessors, (19182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:34,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-05 22:56:34,702 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:56:34,702 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] [2021-11-05 22:56:34,703 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr137ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-05 22:56:34,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:56:34,706 INFO L85 PathProgramCache]: Analyzing trace with hash -766795825, now seen corresponding path program 1 times [2021-11-05 22:56:34,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:56:34,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895468854] [2021-11-05 22:56:34,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:56:34,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:56:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:56:35,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:56:35,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:56:35,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895468854] [2021-11-05 22:56:35,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895468854] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:56:35,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:56:35,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 22:56:35,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211672498] [2021-11-05 22:56:35,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:56:35,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:56:35,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:56:35,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:56:35,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:56:35,480 INFO L87 Difference]: Start difference. First operand has 14754 states, 14587 states have (on average 1.3150065126482484) internal successors, (19182), 14753 states have internal predecessors, (19182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:38,674 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:56:39,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:56:39,367 INFO L93 Difference]: Finished difference Result 43908 states and 57028 transitions. [2021-11-05 22:56:39,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:56:39,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2021-11-05 22:56:39,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:56:39,497 INFO L225 Difference]: With dead ends: 43908 [2021-11-05 22:56:39,497 INFO L226 Difference]: Without dead ends: 28437 [2021-11-05 22:56:39,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.62ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:56:39,541 INFO L933 BasicCegarLoop]: 18701 mSDtfsCounter, 18639 mSDsluCounter, 18644 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3085.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18639 SdHoareTripleChecker+Valid, 37345 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 79.67ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3193.52ms IncrementalHoareTripleChecker+Time [2021-11-05 22:56:39,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18639 Valid, 37345 Invalid, 39 Unknown, 0 Unchecked, 79.67ms Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 3193.52ms Time] [2021-11-05 22:56:39,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28437 states. [2021-11-05 22:56:40,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28437 to 27687. [2021-11-05 22:56:40,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27687 states, 27520 states have (on average 1.2759447674418605) internal successors, (35114), 27686 states have internal predecessors, (35114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:40,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27687 states to 27687 states and 35114 transitions. [2021-11-05 22:56:40,526 INFO L78 Accepts]: Start accepts. Automaton has 27687 states and 35114 transitions. Word has length 31 [2021-11-05 22:56:40,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:56:40,526 INFO L470 AbstractCegarLoop]: Abstraction has 27687 states and 35114 transitions. [2021-11-05 22:56:40,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:40,527 INFO L276 IsEmpty]: Start isEmpty. Operand 27687 states and 35114 transitions. [2021-11-05 22:56:40,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-05 22:56:40,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:56:40,530 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] [2021-11-05 22:56:40,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 22:56:40,530 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr137ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-05 22:56:40,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:56:40,532 INFO L85 PathProgramCache]: Analyzing trace with hash -2046659503, now seen corresponding path program 1 times [2021-11-05 22:56:40,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:56:40,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518040163] [2021-11-05 22:56:40,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:56:40,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:56:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:56:40,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:56:40,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:56:40,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518040163] [2021-11-05 22:56:40,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518040163] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:56:40,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:56:40,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:56:40,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461211488] [2021-11-05 22:56:40,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:56:40,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:56:40,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:56:40,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:56:40,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:56:40,726 INFO L87 Difference]: Start difference. First operand 27687 states and 35114 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:41,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:56:41,440 INFO L93 Difference]: Finished difference Result 27687 states and 35114 transitions. [2021-11-05 22:56:41,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:56:41,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2021-11-05 22:56:41,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:56:41,499 INFO L225 Difference]: With dead ends: 27687 [2021-11-05 22:56:41,500 INFO L226 Difference]: Without dead ends: 27683 [2021-11-05 22:56:41,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.93ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:56:41,517 INFO L933 BasicCegarLoop]: 17936 mSDtfsCounter, 17850 mSDsluCounter, 17922 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 127.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17850 SdHoareTripleChecker+Valid, 35858 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.00ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 148.56ms IncrementalHoareTripleChecker+Time [2021-11-05 22:56:41,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17850 Valid, 35858 Invalid, 108 Unknown, 0 Unchecked, 41.00ms Time], IncrementalHoareTripleChecker [28 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 148.56ms Time] [2021-11-05 22:56:41,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27683 states. [2021-11-05 22:56:42,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27683 to 27683. [2021-11-05 22:56:42,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27683 states, 27518 states have (on average 1.2758921433243695) internal successors, (35110), 27682 states have internal predecessors, (35110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:42,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27683 states to 27683 states and 35110 transitions. [2021-11-05 22:56:42,152 INFO L78 Accepts]: Start accepts. Automaton has 27683 states and 35110 transitions. Word has length 31 [2021-11-05 22:56:42,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:56:42,156 INFO L470 AbstractCegarLoop]: Abstraction has 27683 states and 35110 transitions. [2021-11-05 22:56:42,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:42,156 INFO L276 IsEmpty]: Start isEmpty. Operand 27683 states and 35110 transitions. [2021-11-05 22:56:42,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-05 22:56:42,160 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:56:42,161 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] [2021-11-05 22:56:42,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 22:56:42,161 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr138ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-05 22:56:42,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:56:42,161 INFO L85 PathProgramCache]: Analyzing trace with hash 256812884, now seen corresponding path program 1 times [2021-11-05 22:56:42,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:56:42,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690230279] [2021-11-05 22:56:42,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:56:42,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:56:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:56:42,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:56:42,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:56:42,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690230279] [2021-11-05 22:56:42,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690230279] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:56:42,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:56:42,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:56:42,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333348740] [2021-11-05 22:56:42,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:56:42,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:56:42,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:56:42,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:56:42,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:56:42,355 INFO L87 Difference]: Start difference. First operand 27683 states and 35110 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:42,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:56:42,936 INFO L93 Difference]: Finished difference Result 27683 states and 35110 transitions. [2021-11-05 22:56:42,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:56:42,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2021-11-05 22:56:42,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:56:42,998 INFO L225 Difference]: With dead ends: 27683 [2021-11-05 22:56:42,998 INFO L226 Difference]: Without dead ends: 27679 [2021-11-05 22:56:43,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.24ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:56:43,016 INFO L933 BasicCegarLoop]: 17940 mSDtfsCounter, 17914 mSDsluCounter, 17872 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17914 SdHoareTripleChecker+Valid, 35812 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.33ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.73ms IncrementalHoareTripleChecker+Time [2021-11-05 22:56:43,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17914 Valid, 35812 Invalid, 76 Unknown, 0 Unchecked, 34.33ms Time], IncrementalHoareTripleChecker [26 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 92.73ms Time] [2021-11-05 22:56:43,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27679 states. [2021-11-05 22:56:43,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27679 to 27679. [2021-11-05 22:56:43,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27679 states, 27516 states have (on average 1.2758395115569123) internal successors, (35106), 27678 states have internal predecessors, (35106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:43,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27679 states to 27679 states and 35106 transitions. [2021-11-05 22:56:43,758 INFO L78 Accepts]: Start accepts. Automaton has 27679 states and 35106 transitions. Word has length 33 [2021-11-05 22:56:43,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:56:43,758 INFO L470 AbstractCegarLoop]: Abstraction has 27679 states and 35106 transitions. [2021-11-05 22:56:43,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:43,759 INFO L276 IsEmpty]: Start isEmpty. Operand 27679 states and 35106 transitions. [2021-11-05 22:56:43,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-05 22:56:43,761 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:56:43,762 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] [2021-11-05 22:56:43,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 22:56:43,762 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr139ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-05 22:56:43,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:56:43,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1985619671, now seen corresponding path program 1 times [2021-11-05 22:56:43,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:56:43,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330599116] [2021-11-05 22:56:43,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:56:43,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:56:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:56:43,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:56:43,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:56:43,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330599116] [2021-11-05 22:56:43,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330599116] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:56:43,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:56:43,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:56:43,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713224199] [2021-11-05 22:56:43,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:56:43,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:56:43,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:56:43,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:56:43,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:56:43,926 INFO L87 Difference]: Start difference. First operand 27679 states and 35106 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:44,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:56:44,438 INFO L93 Difference]: Finished difference Result 27679 states and 35106 transitions. [2021-11-05 22:56:44,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:56:44,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2021-11-05 22:56:44,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:56:44,492 INFO L225 Difference]: With dead ends: 27679 [2021-11-05 22:56:44,493 INFO L226 Difference]: Without dead ends: 27675 [2021-11-05 22:56:44,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.10ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:56:44,506 INFO L933 BasicCegarLoop]: 17936 mSDtfsCounter, 17908 mSDsluCounter, 17870 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 78.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17908 SdHoareTripleChecker+Valid, 35806 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.02ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 91.11ms IncrementalHoareTripleChecker+Time [2021-11-05 22:56:44,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17908 Valid, 35806 Invalid, 74 Unknown, 0 Unchecked, 27.02ms Time], IncrementalHoareTripleChecker [26 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 91.11ms Time] [2021-11-05 22:56:44,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27675 states. [2021-11-05 22:56:45,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27675 to 27675. [2021-11-05 22:56:45,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27675 states, 27514 states have (on average 1.2757868721378207) internal successors, (35102), 27674 states have internal predecessors, (35102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:45,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27675 states to 27675 states and 35102 transitions. [2021-11-05 22:56:45,115 INFO L78 Accepts]: Start accepts. Automaton has 27675 states and 35102 transitions. Word has length 35 [2021-11-05 22:56:45,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:56:45,115 INFO L470 AbstractCegarLoop]: Abstraction has 27675 states and 35102 transitions. [2021-11-05 22:56:45,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:45,115 INFO L276 IsEmpty]: Start isEmpty. Operand 27675 states and 35102 transitions. [2021-11-05 22:56:45,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-05 22:56:45,116 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:56:45,116 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] [2021-11-05 22:56:45,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 22:56:45,117 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr140ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-05 22:56:45,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:56:45,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1216598746, now seen corresponding path program 1 times [2021-11-05 22:56:45,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:56:45,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141523565] [2021-11-05 22:56:45,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:56:45,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:56:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:56:45,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:56:45,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:56:45,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141523565] [2021-11-05 22:56:45,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141523565] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:56:45,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:56:45,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:56:45,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290211113] [2021-11-05 22:56:45,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:56:45,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:56:45,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:56:45,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:56:45,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:56:45,258 INFO L87 Difference]: Start difference. First operand 27675 states and 35102 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:45,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:56:45,813 INFO L93 Difference]: Finished difference Result 27675 states and 35102 transitions. [2021-11-05 22:56:45,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:56:45,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-11-05 22:56:45,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:56:45,868 INFO L225 Difference]: With dead ends: 27675 [2021-11-05 22:56:45,869 INFO L226 Difference]: Without dead ends: 27671 [2021-11-05 22:56:45,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.18ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:56:45,881 INFO L933 BasicCegarLoop]: 17932 mSDtfsCounter, 17902 mSDsluCounter, 17868 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17902 SdHoareTripleChecker+Valid, 35800 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.84ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.05ms IncrementalHoareTripleChecker+Time [2021-11-05 22:56:45,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17902 Valid, 35800 Invalid, 72 Unknown, 0 Unchecked, 28.84ms Time], IncrementalHoareTripleChecker [26 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 83.05ms Time] [2021-11-05 22:56:45,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27671 states. [2021-11-05 22:56:46,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27671 to 27671. [2021-11-05 22:56:46,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27671 states, 27512 states have (on average 1.275734225065426) internal successors, (35098), 27670 states have internal predecessors, (35098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:46,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27671 states to 27671 states and 35098 transitions. [2021-11-05 22:56:46,528 INFO L78 Accepts]: Start accepts. Automaton has 27671 states and 35098 transitions. Word has length 37 [2021-11-05 22:56:46,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:56:46,529 INFO L470 AbstractCegarLoop]: Abstraction has 27671 states and 35098 transitions. [2021-11-05 22:56:46,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:46,529 INFO L276 IsEmpty]: Start isEmpty. Operand 27671 states and 35098 transitions. [2021-11-05 22:56:46,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-05 22:56:46,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:56:46,530 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] [2021-11-05 22:56:46,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 22:56:46,530 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr141ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-05 22:56:46,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:56:46,531 INFO L85 PathProgramCache]: Analyzing trace with hash 921865053, now seen corresponding path program 1 times [2021-11-05 22:56:46,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:56:46,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790203632] [2021-11-05 22:56:46,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:56:46,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:56:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:56:46,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:56:46,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:56:46,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790203632] [2021-11-05 22:56:46,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790203632] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:56:46,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:56:46,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:56:46,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958633195] [2021-11-05 22:56:46,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:56:46,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:56:46,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:56:46,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:56:46,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:56:46,669 INFO L87 Difference]: Start difference. First operand 27671 states and 35098 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:47,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:56:47,345 INFO L93 Difference]: Finished difference Result 27671 states and 35098 transitions. [2021-11-05 22:56:47,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:56:47,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2021-11-05 22:56:47,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:56:47,390 INFO L225 Difference]: With dead ends: 27671 [2021-11-05 22:56:47,390 INFO L226 Difference]: Without dead ends: 27667 [2021-11-05 22:56:47,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.16ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:56:47,402 INFO L933 BasicCegarLoop]: 17928 mSDtfsCounter, 17896 mSDsluCounter, 17866 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17896 SdHoareTripleChecker+Valid, 35794 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.47ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.99ms IncrementalHoareTripleChecker+Time [2021-11-05 22:56:47,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17896 Valid, 35794 Invalid, 70 Unknown, 0 Unchecked, 27.47ms Time], IncrementalHoareTripleChecker [26 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 78.99ms Time] [2021-11-05 22:56:47,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27667 states. [2021-11-05 22:56:48,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27667 to 27667. [2021-11-05 22:56:48,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27667 states, 27510 states have (on average 1.2756815703380588) internal successors, (35094), 27666 states have internal predecessors, (35094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:48,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27667 states to 27667 states and 35094 transitions. [2021-11-05 22:56:48,300 INFO L78 Accepts]: Start accepts. Automaton has 27667 states and 35094 transitions. Word has length 39 [2021-11-05 22:56:48,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:56:48,300 INFO L470 AbstractCegarLoop]: Abstraction has 27667 states and 35094 transitions. [2021-11-05 22:56:48,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:48,300 INFO L276 IsEmpty]: Start isEmpty. Operand 27667 states and 35094 transitions. [2021-11-05 22:56:48,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-05 22:56:48,301 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:56:48,301 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] [2021-11-05 22:56:48,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 22:56:48,301 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr142ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-05 22:56:48,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:56:48,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1150627936, now seen corresponding path program 1 times [2021-11-05 22:56:48,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:56:48,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822603110] [2021-11-05 22:56:48,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:56:48,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:56:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:56:48,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:56:48,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:56:48,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822603110] [2021-11-05 22:56:48,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822603110] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:56:48,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:56:48,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:56:48,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169668867] [2021-11-05 22:56:48,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:56:48,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:56:48,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:56:48,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:56:48,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:56:48,448 INFO L87 Difference]: Start difference. First operand 27667 states and 35094 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:49,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:56:49,084 INFO L93 Difference]: Finished difference Result 27667 states and 35094 transitions. [2021-11-05 22:56:49,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:56:49,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2021-11-05 22:56:49,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:56:49,126 INFO L225 Difference]: With dead ends: 27667 [2021-11-05 22:56:49,126 INFO L226 Difference]: Without dead ends: 27663 [2021-11-05 22:56:49,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.29ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:56:49,136 INFO L933 BasicCegarLoop]: 17924 mSDtfsCounter, 17890 mSDsluCounter, 17864 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17890 SdHoareTripleChecker+Valid, 35788 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.18ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.73ms IncrementalHoareTripleChecker+Time [2021-11-05 22:56:49,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17890 Valid, 35788 Invalid, 68 Unknown, 0 Unchecked, 26.18ms Time], IncrementalHoareTripleChecker [26 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 75.73ms Time] [2021-11-05 22:56:49,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27663 states. [2021-11-05 22:56:49,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27663 to 27663. [2021-11-05 22:56:49,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27663 states, 27508 states have (on average 1.2756289079540497) internal successors, (35090), 27662 states have internal predecessors, (35090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:49,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27663 states to 27663 states and 35090 transitions. [2021-11-05 22:56:49,808 INFO L78 Accepts]: Start accepts. Automaton has 27663 states and 35090 transitions. Word has length 41 [2021-11-05 22:56:49,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:56:49,808 INFO L470 AbstractCegarLoop]: Abstraction has 27663 states and 35090 transitions. [2021-11-05 22:56:49,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:49,808 INFO L276 IsEmpty]: Start isEmpty. Operand 27663 states and 35090 transitions. [2021-11-05 22:56:49,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-05 22:56:49,809 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:56:49,809 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] [2021-11-05 22:56:49,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 22:56:49,809 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr143ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-05 22:56:49,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:56:49,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1948426723, now seen corresponding path program 1 times [2021-11-05 22:56:49,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:56:49,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185888510] [2021-11-05 22:56:49,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:56:49,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:56:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:56:49,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:56:49,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:56:49,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185888510] [2021-11-05 22:56:49,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185888510] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:56:49,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:56:49,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:56:49,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382530262] [2021-11-05 22:56:49,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:56:49,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:56:49,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:56:49,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:56:49,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:56:49,952 INFO L87 Difference]: Start difference. First operand 27663 states and 35090 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:50,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:56:50,682 INFO L93 Difference]: Finished difference Result 27663 states and 35090 transitions. [2021-11-05 22:56:50,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:56:50,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2021-11-05 22:56:50,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:56:50,730 INFO L225 Difference]: With dead ends: 27663 [2021-11-05 22:56:50,731 INFO L226 Difference]: Without dead ends: 27659 [2021-11-05 22:56:50,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.78ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:56:50,745 INFO L933 BasicCegarLoop]: 17920 mSDtfsCounter, 17884 mSDsluCounter, 17862 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17884 SdHoareTripleChecker+Valid, 35782 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.57ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.81ms IncrementalHoareTripleChecker+Time [2021-11-05 22:56:50,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17884 Valid, 35782 Invalid, 66 Unknown, 0 Unchecked, 27.57ms Time], IncrementalHoareTripleChecker [26 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 72.81ms Time] [2021-11-05 22:56:50,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27659 states. [2021-11-05 22:56:51,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27659 to 27659. [2021-11-05 22:56:51,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27659 states, 27506 states have (on average 1.2755762379117284) internal successors, (35086), 27658 states have internal predecessors, (35086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:51,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27659 states to 27659 states and 35086 transitions. [2021-11-05 22:56:51,690 INFO L78 Accepts]: Start accepts. Automaton has 27659 states and 35086 transitions. Word has length 43 [2021-11-05 22:56:51,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:56:51,691 INFO L470 AbstractCegarLoop]: Abstraction has 27659 states and 35086 transitions. [2021-11-05 22:56:51,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:51,691 INFO L276 IsEmpty]: Start isEmpty. Operand 27659 states and 35086 transitions. [2021-11-05 22:56:51,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-05 22:56:51,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:56:51,692 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] [2021-11-05 22:56:51,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 22:56:51,693 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr144ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-05 22:56:51,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:56:51,693 INFO L85 PathProgramCache]: Analyzing trace with hash -166084634, now seen corresponding path program 1 times [2021-11-05 22:56:51,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:56:51,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916664695] [2021-11-05 22:56:51,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:56:51,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:56:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:56:51,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:56:51,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:56:51,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916664695] [2021-11-05 22:56:51,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916664695] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:56:51,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:56:51,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:56:51,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904084368] [2021-11-05 22:56:51,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:56:51,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:56:51,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:56:51,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:56:51,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:56:51,807 INFO L87 Difference]: Start difference. First operand 27659 states and 35086 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:53,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:56:53,207 INFO L93 Difference]: Finished difference Result 27659 states and 35086 transitions. [2021-11-05 22:56:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:56:53,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2021-11-05 22:56:53,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:56:53,251 INFO L225 Difference]: With dead ends: 27659 [2021-11-05 22:56:53,252 INFO L226 Difference]: Without dead ends: 27655 [2021-11-05 22:56:53,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.22ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:56:53,264 INFO L933 BasicCegarLoop]: 17788 mSDtfsCounter, 4188 mSDsluCounter, 31151 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 653.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4188 SdHoareTripleChecker+Valid, 48939 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.34ms SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 759.00ms IncrementalHoareTripleChecker+Time [2021-11-05 22:56:53,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4188 Valid, 48939 Invalid, 591 Unknown, 0 Unchecked, 27.34ms Time], IncrementalHoareTripleChecker [95 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 759.00ms Time] [2021-11-05 22:56:53,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27655 states. [2021-11-05 22:56:53,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27655 to 27655. [2021-11-05 22:56:53,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27655 states, 27504 states have (on average 1.2755235602094241) internal successors, (35082), 27654 states have internal predecessors, (35082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:54,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27655 states to 27655 states and 35082 transitions. [2021-11-05 22:56:54,033 INFO L78 Accepts]: Start accepts. Automaton has 27655 states and 35082 transitions. Word has length 45 [2021-11-05 22:56:54,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:56:54,033 INFO L470 AbstractCegarLoop]: Abstraction has 27655 states and 35082 transitions. [2021-11-05 22:56:54,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:54,033 INFO L276 IsEmpty]: Start isEmpty. Operand 27655 states and 35082 transitions. [2021-11-05 22:56:54,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-05 22:56:54,034 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:56:54,034 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] [2021-11-05 22:56:54,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 22:56:54,034 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr145ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-05 22:56:54,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:56:54,035 INFO L85 PathProgramCache]: Analyzing trace with hash -691967383, now seen corresponding path program 1 times [2021-11-05 22:56:54,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:56:54,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120646281] [2021-11-05 22:56:54,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:56:54,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:56:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:56:54,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:56:54,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:56:54,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120646281] [2021-11-05 22:56:54,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120646281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:56:54,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:56:54,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:56:54,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940164365] [2021-11-05 22:56:54,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:56:54,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:56:54,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:56:54,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:56:54,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:56:54,164 INFO L87 Difference]: Start difference. First operand 27655 states and 35082 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:54,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:56:54,882 INFO L93 Difference]: Finished difference Result 27655 states and 35082 transitions. [2021-11-05 22:56:54,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:56:54,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2021-11-05 22:56:54,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:56:54,927 INFO L225 Difference]: With dead ends: 27655 [2021-11-05 22:56:54,927 INFO L226 Difference]: Without dead ends: 27651 [2021-11-05 22:56:54,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.79ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:56:54,938 INFO L933 BasicCegarLoop]: 17912 mSDtfsCounter, 17872 mSDsluCounter, 17858 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17872 SdHoareTripleChecker+Valid, 35770 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.03ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.86ms IncrementalHoareTripleChecker+Time [2021-11-05 22:56:54,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17872 Valid, 35770 Invalid, 62 Unknown, 0 Unchecked, 28.03ms Time], IncrementalHoareTripleChecker [26 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 59.86ms Time] [2021-11-05 22:56:54,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27651 states. [2021-11-05 22:56:55,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27651 to 27651. [2021-11-05 22:56:55,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27651 states, 27502 states have (on average 1.2754708748454657) internal successors, (35078), 27650 states have internal predecessors, (35078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:55,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27651 states to 27651 states and 35078 transitions. [2021-11-05 22:56:55,935 INFO L78 Accepts]: Start accepts. Automaton has 27651 states and 35078 transitions. Word has length 47 [2021-11-05 22:56:55,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:56:55,936 INFO L470 AbstractCegarLoop]: Abstraction has 27651 states and 35078 transitions. [2021-11-05 22:56:55,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:55,936 INFO L276 IsEmpty]: Start isEmpty. Operand 27651 states and 35078 transitions. [2021-11-05 22:56:55,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-05 22:56:55,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:56:55,937 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] [2021-11-05 22:56:55,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 22:56:55,937 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr146ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-05 22:56:55,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:56:55,938 INFO L85 PathProgramCache]: Analyzing trace with hash 740852076, now seen corresponding path program 1 times [2021-11-05 22:56:55,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:56:55,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848492734] [2021-11-05 22:56:55,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:56:55,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:56:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:56:56,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:56:56,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:56:56,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848492734] [2021-11-05 22:56:56,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848492734] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:56:56,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:56:56,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:56:56,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997471190] [2021-11-05 22:56:56,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:56:56,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:56:56,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:56:56,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:56:56,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:56:56,052 INFO L87 Difference]: Start difference. First operand 27651 states and 35078 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:56,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:56:56,828 INFO L93 Difference]: Finished difference Result 27651 states and 35078 transitions. [2021-11-05 22:56:56,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:56:56,829 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2021-11-05 22:56:56,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:56:56,869 INFO L225 Difference]: With dead ends: 27651 [2021-11-05 22:56:56,869 INFO L226 Difference]: Without dead ends: 27647 [2021-11-05 22:56:56,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.74ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:56:56,879 INFO L933 BasicCegarLoop]: 17908 mSDtfsCounter, 17866 mSDsluCounter, 17856 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17866 SdHoareTripleChecker+Valid, 35764 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.14ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.52ms IncrementalHoareTripleChecker+Time [2021-11-05 22:56:56,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17866 Valid, 35764 Invalid, 60 Unknown, 0 Unchecked, 28.14ms Time], IncrementalHoareTripleChecker [26 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 67.52ms Time] [2021-11-05 22:56:56,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27647 states. [2021-11-05 22:56:57,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27647 to 27647. [2021-11-05 22:56:57,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27647 states, 27500 states have (on average 1.2754181818181818) internal successors, (35074), 27646 states have internal predecessors, (35074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:57,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27647 states to 27647 states and 35074 transitions. [2021-11-05 22:56:57,690 INFO L78 Accepts]: Start accepts. Automaton has 27647 states and 35074 transitions. Word has length 49 [2021-11-05 22:56:57,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:56:57,690 INFO L470 AbstractCegarLoop]: Abstraction has 27647 states and 35074 transitions. [2021-11-05 22:56:57,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:57,690 INFO L276 IsEmpty]: Start isEmpty. Operand 27647 states and 35074 transitions. [2021-11-05 22:56:57,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-05 22:56:57,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:56:57,692 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] [2021-11-05 22:56:57,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 22:56:57,692 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr147ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-05 22:56:57,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:56:57,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1004149521, now seen corresponding path program 1 times [2021-11-05 22:56:57,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:56:57,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839798804] [2021-11-05 22:56:57,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:56:57,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:56:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:56:57,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:56:57,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:56:57,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839798804] [2021-11-05 22:56:57,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839798804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:56:57,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:56:57,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:56:57,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402538919] [2021-11-05 22:56:57,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:56:57,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:56:57,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:56:57,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:56:57,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:56:57,844 INFO L87 Difference]: Start difference. First operand 27647 states and 35074 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:58,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:56:58,741 INFO L93 Difference]: Finished difference Result 27647 states and 35074 transitions. [2021-11-05 22:56:58,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:56:58,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2021-11-05 22:56:58,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:56:58,783 INFO L225 Difference]: With dead ends: 27647 [2021-11-05 22:56:58,783 INFO L226 Difference]: Without dead ends: 27643 [2021-11-05 22:56:58,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.46ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:56:58,794 INFO L933 BasicCegarLoop]: 17904 mSDtfsCounter, 17860 mSDsluCounter, 17854 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17860 SdHoareTripleChecker+Valid, 35758 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.25ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 91.90ms IncrementalHoareTripleChecker+Time [2021-11-05 22:56:58,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17860 Valid, 35758 Invalid, 58 Unknown, 0 Unchecked, 27.25ms Time], IncrementalHoareTripleChecker [26 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 91.90ms Time] [2021-11-05 22:56:58,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27643 states. [2021-11-05 22:56:59,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27643 to 27643. [2021-11-05 22:56:59,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27643 states, 27498 states have (on average 1.2753654811259) internal successors, (35070), 27642 states have internal predecessors, (35070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:59,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27643 states to 27643 states and 35070 transitions. [2021-11-05 22:56:59,810 INFO L78 Accepts]: Start accepts. Automaton has 27643 states and 35070 transitions. Word has length 51 [2021-11-05 22:56:59,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:56:59,810 INFO L470 AbstractCegarLoop]: Abstraction has 27643 states and 35070 transitions. [2021-11-05 22:56:59,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:56:59,811 INFO L276 IsEmpty]: Start isEmpty. Operand 27643 states and 35070 transitions. [2021-11-05 22:56:59,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-05 22:56:59,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:56:59,815 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] [2021-11-05 22:56:59,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 22:56:59,816 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr148ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-05 22:56:59,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:56:59,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1381528818, now seen corresponding path program 1 times [2021-11-05 22:56:59,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:56:59,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292169783] [2021-11-05 22:56:59,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:56:59,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:56:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:56:59,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:56:59,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:56:59,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292169783] [2021-11-05 22:56:59,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292169783] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:56:59,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:56:59,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:56:59,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355350446] [2021-11-05 22:56:59,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:56:59,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:56:59,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:56:59,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:56:59,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:56:59,943 INFO L87 Difference]: Start difference. First operand 27643 states and 35070 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:57:00,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:57:00,757 INFO L93 Difference]: Finished difference Result 27643 states and 35070 transitions. [2021-11-05 22:57:00,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:57:00,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2021-11-05 22:57:00,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:57:00,799 INFO L225 Difference]: With dead ends: 27643 [2021-11-05 22:57:00,799 INFO L226 Difference]: Without dead ends: 27639 [2021-11-05 22:57:00,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.51ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:57:00,811 INFO L933 BasicCegarLoop]: 17900 mSDtfsCounter, 17854 mSDsluCounter, 17852 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17854 SdHoareTripleChecker+Valid, 35752 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.51ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.15ms IncrementalHoareTripleChecker+Time [2021-11-05 22:57:00,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17854 Valid, 35752 Invalid, 56 Unknown, 0 Unchecked, 29.51ms Time], IncrementalHoareTripleChecker [26 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 62.15ms Time] [2021-11-05 22:57:00,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27639 states. [2021-11-05 22:57:01,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27639 to 27639. [2021-11-05 22:57:01,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27639 states, 27496 states have (on average 1.275312772766948) internal successors, (35066), 27638 states have internal predecessors, (35066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:57:01,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27639 states to 27639 states and 35066 transitions. [2021-11-05 22:57:01,696 INFO L78 Accepts]: Start accepts. Automaton has 27639 states and 35066 transitions. Word has length 53 [2021-11-05 22:57:01,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:57:01,696 INFO L470 AbstractCegarLoop]: Abstraction has 27639 states and 35066 transitions. [2021-11-05 22:57:01,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:57:01,697 INFO L276 IsEmpty]: Start isEmpty. Operand 27639 states and 35066 transitions. [2021-11-05 22:57:01,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-05 22:57:01,698 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:57:01,698 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] [2021-11-05 22:57:01,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-05 22:57:01,698 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr150ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-05 22:57:01,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:57:01,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1964335015, now seen corresponding path program 1 times [2021-11-05 22:57:01,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:57:01,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685419234] [2021-11-05 22:57:01,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:57:01,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:57:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:57:01,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:57:01,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:57:01,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685419234] [2021-11-05 22:57:01,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685419234] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:57:01,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:57:01,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:57:01,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340081168] [2021-11-05 22:57:01,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:57:01,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:57:01,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:57:01,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:57:01,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:57:01,819 INFO L87 Difference]: Start difference. First operand 27639 states and 35066 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)