./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 063e80a6567f3b510ecc2efbcb0a8f49fa12a56c608116a0a2a3dc1d5e72e4c2 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 19:27:42,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 19:27:42,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 19:27:42,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 19:27:42,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 19:27:42,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 19:27:42,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 19:27:42,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 19:27:42,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 19:27:42,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 19:27:42,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 19:27:42,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 19:27:42,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 19:27:42,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 19:27:42,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 19:27:42,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 19:27:42,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 19:27:42,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 19:27:42,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 19:27:42,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 19:27:42,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 19:27:42,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 19:27:42,837 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 19:27:42,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 19:27:42,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 19:27:42,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 19:27:42,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 19:27:42,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 19:27:42,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 19:27:42,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 19:27:42,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 19:27:42,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 19:27:42,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 19:27:42,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 19:27:42,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 19:27:42,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 19:27:42,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 19:27:42,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 19:27:42,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 19:27:42,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 19:27:42,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 19:27:42,851 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 19:27:42,871 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 19:27:42,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 19:27:42,873 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 19:27:42,873 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 19:27:42,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 19:27:42,875 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 19:27:42,875 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 19:27:42,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 19:27:42,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 19:27:42,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 19:27:42,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 19:27:42,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 19:27:42,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 19:27:42,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 19:27:42,877 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 19:27:42,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 19:27:42,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 19:27:42,877 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 19:27:42,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 19:27:42,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:27:42,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 19:27:42,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 19:27:42,878 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 19:27:42,878 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 19:27:42,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 19:27:42,878 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 19:27:42,879 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 19:27:42,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 19:27:42,879 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 19:27:42,879 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 063e80a6567f3b510ecc2efbcb0a8f49fa12a56c608116a0a2a3dc1d5e72e4c2 [2021-11-05 19:27:43,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 19:27:43,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 19:27:43,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 19:27:43,154 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 19:27:43,154 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 19:27:43,155 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i [2021-11-05 19:27:43,201 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b1bb0cd9/500ea12e57e44510bcf9ee5e799f72e4/FLAG6b318c100 [2021-11-05 19:27:43,928 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 19:27:43,928 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i [2021-11-05 19:27:43,980 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b1bb0cd9/500ea12e57e44510bcf9ee5e799f72e4/FLAG6b318c100 [2021-11-05 19:27:44,184 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b1bb0cd9/500ea12e57e44510bcf9ee5e799f72e4 [2021-11-05 19:27:44,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 19:27:44,206 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 19:27:44,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 19:27:44,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 19:27:44,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 19:27:44,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:27:44" (1/1) ... [2021-11-05 19:27:44,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3285bd87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:27:44, skipping insertion in model container [2021-11-05 19:27:44,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:27:44" (1/1) ... [2021-11-05 19:27:44,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 19:27:44,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 19:27:46,927 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i[478905,478918] [2021-11-05 19:27:46,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:27:47,021 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 19:27:47,490 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i[478905,478918] [2021-11-05 19:27:47,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:27:47,629 INFO L208 MainTranslator]: Completed translation [2021-11-05 19:27:47,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:27:47 WrapperNode [2021-11-05 19:27:47,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 19:27:47,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 19:27:47,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 19:27:47,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 19:27:47,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:27:47" (1/1) ... [2021-11-05 19:27:47,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:27:47" (1/1) ... [2021-11-05 19:27:49,433 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 19:27:49,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 19:27:49,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 19:27:49,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 19:27:49,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:27:47" (1/1) ... [2021-11-05 19:27:49,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:27:47" (1/1) ... [2021-11-05 19:27:49,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:27:47" (1/1) ... [2021-11-05 19:27:49,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:27:47" (1/1) ... [2021-11-05 19:27:50,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:27:47" (1/1) ... [2021-11-05 19:27:51,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:27:47" (1/1) ... [2021-11-05 19:27:51,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:27:47" (1/1) ... [2021-11-05 19:27:51,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 19:27:51,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 19:27:51,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 19:27:51,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 19:27:51,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:27:47" (1/1) ... [2021-11-05 19:27:51,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:27:51,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:27:51,487 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 19:27:51,520 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 19:27:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-05 19:27:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 19:27:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 19:27:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 19:27:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 19:27:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 19:27:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 19:27:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 19:27:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 19:27:51,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 19:27:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 19:27:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 19:27:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-05 19:27:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 19:27:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 19:27:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 19:27:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 19:27:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 19:30:40,746 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 19:30:40,746 INFO L299 CfgBuilder]: Removed 11252 assume(true) statements. [2021-11-05 19:30:40,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:30:40 BoogieIcfgContainer [2021-11-05 19:30:40,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 19:30:40,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 19:30:40,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 19:30:40,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 19:30:40,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:27:44" (1/3) ... [2021-11-05 19:30:40,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d2383ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:30:40, skipping insertion in model container [2021-11-05 19:30:40,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:27:47" (2/3) ... [2021-11-05 19:30:40,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d2383ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:30:40, skipping insertion in model container [2021-11-05 19:30:40,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:30:40" (3/3) ... [2021-11-05 19:30:40,761 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i [2021-11-05 19:30:40,765 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 19:30:40,765 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-05 19:30:40,822 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 19:30:40,828 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 19:30:40,828 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-05 19:30:40,936 INFO L276 IsEmpty]: Start isEmpty. Operand has 11368 states, 11363 states have (on average 1.404734665141248) internal successors, (15962), 11367 states have internal predecessors, (15962), 0 states have call successors, (0), 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 19:30:40,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-05 19:30:40,964 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:30:40,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:30:40,965 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 19:30:40,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:30:40,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1071074736, now seen corresponding path program 1 times [2021-11-05 19:30:40,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:30:40,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297207412] [2021-11-05 19:30:40,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:30:40,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:30:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:30:41,476 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 19:30:41,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:30:41,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297207412] [2021-11-05 19:30:41,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297207412] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:30:41,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:30:41,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 19:30:41,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347177097] [2021-11-05 19:30:41,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:30:41,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 19:30:41,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:30:41,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 19:30:41,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 19:30:41,528 INFO L87 Difference]: Start difference. First operand has 11368 states, 11363 states have (on average 1.404734665141248) internal successors, (15962), 11367 states have internal predecessors, (15962), 0 states have call successors, (0), 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 2 states, 2 states have (on average 56.5) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:30:41,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:30:41,779 INFO L93 Difference]: Finished difference Result 22732 states and 31919 transitions. [2021-11-05 19:30:41,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 19:30:41,780 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 56.5) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-05 19:30:41,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:30:41,830 INFO L225 Difference]: With dead ends: 22732 [2021-11-05 19:30:41,831 INFO L226 Difference]: Without dead ends: 9447 [2021-11-05 19:30:41,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 19:30:41,859 INFO L933 BasicCegarLoop]: 15672 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15672 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 19:30:41,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 15672 Invalid, 0 Unknown, 0 Unchecked, 43.68ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 19:30:41,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9447 states. [2021-11-05 19:30:42,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9447 to 9447. [2021-11-05 19:30:42,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9447 states, 9443 states have (on average 1.375304458328921) internal successors, (12987), 9446 states have internal predecessors, (12987), 0 states have call successors, (0), 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 19:30:42,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9447 states to 9447 states and 12987 transitions. [2021-11-05 19:30:42,096 INFO L78 Accepts]: Start accepts. Automaton has 9447 states and 12987 transitions. Word has length 113 [2021-11-05 19:30:42,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:30:42,097 INFO L470 AbstractCegarLoop]: Abstraction has 9447 states and 12987 transitions. [2021-11-05 19:30:42,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 56.5) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:30:42,098 INFO L276 IsEmpty]: Start isEmpty. Operand 9447 states and 12987 transitions. [2021-11-05 19:30:42,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-05 19:30:42,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:30:42,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:30:42,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 19:30:42,102 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 19:30:42,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:30:42,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1506644702, now seen corresponding path program 1 times [2021-11-05 19:30:42,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:30:42,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050877517] [2021-11-05 19:30:42,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:30:42,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:30:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:30:42,357 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 19:30:42,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:30:42,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050877517] [2021-11-05 19:30:42,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050877517] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:30:42,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:30:42,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:30:42,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096494948] [2021-11-05 19:30:42,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:30:42,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:30:42,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:30:42,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:30:42,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:30:42,364 INFO L87 Difference]: Start difference. First operand 9447 states and 12987 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:30:42,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:30:42,861 INFO L93 Difference]: Finished difference Result 24760 states and 34031 transitions. [2021-11-05 19:30:42,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:30:42,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-05 19:30:42,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:30:42,910 INFO L225 Difference]: With dead ends: 24760 [2021-11-05 19:30:42,911 INFO L226 Difference]: Without dead ends: 15327 [2021-11-05 19:30:42,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:30:42,929 INFO L933 BasicCegarLoop]: 12986 mSDtfsCounter, 8076 mSDsluCounter, 12930 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 198.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8076 SdHoareTripleChecker+Valid, 25916 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.62ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 222.91ms IncrementalHoareTripleChecker+Time [2021-11-05 19:30:42,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8076 Valid, 25916 Invalid, 44 Unknown, 0 Unchecked, 34.62ms Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 222.91ms Time] [2021-11-05 19:30:42,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15327 states. [2021-11-05 19:30:43,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15327 to 15279. [2021-11-05 19:30:43,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15279 states, 15275 states have (on average 1.3753846153846154) internal successors, (21009), 15278 states have internal predecessors, (21009), 0 states have call successors, (0), 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 19:30:43,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15279 states to 15279 states and 21009 transitions. [2021-11-05 19:30:43,219 INFO L78 Accepts]: Start accepts. Automaton has 15279 states and 21009 transitions. Word has length 113 [2021-11-05 19:30:43,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:30:43,221 INFO L470 AbstractCegarLoop]: Abstraction has 15279 states and 21009 transitions. [2021-11-05 19:30:43,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:30:43,223 INFO L276 IsEmpty]: Start isEmpty. Operand 15279 states and 21009 transitions. [2021-11-05 19:30:43,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-05 19:30:43,238 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:30:43,238 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:30:43,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 19:30:43,239 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 19:30:43,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:30:43,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1265879774, now seen corresponding path program 1 times [2021-11-05 19:30:43,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:30:43,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763330533] [2021-11-05 19:30:43,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:30:43,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:30:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:30:43,583 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-05 19:30:43,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:30:43,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763330533] [2021-11-05 19:30:43,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763330533] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:30:43,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:30:43,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:30:43,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647442726] [2021-11-05 19:30:43,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:30:43,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:30:43,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:30:43,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:30:43,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:30:43,586 INFO L87 Difference]: Start difference. First operand 15279 states and 21009 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 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 19:30:43,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:30:43,850 INFO L93 Difference]: Finished difference Result 30546 states and 42007 transitions. [2021-11-05 19:30:43,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:30:43,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 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 188 [2021-11-05 19:30:43,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:30:43,895 INFO L225 Difference]: With dead ends: 30546 [2021-11-05 19:30:43,896 INFO L226 Difference]: Without dead ends: 15281 [2021-11-05 19:30:43,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.84ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:30:43,921 INFO L933 BasicCegarLoop]: 12985 mSDtfsCounter, 0 mSDsluCounter, 12975 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25960 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.51ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.69ms IncrementalHoareTripleChecker+Time [2021-11-05 19:30:43,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 25960 Invalid, 14 Unknown, 0 Unchecked, 21.51ms Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 43.69ms Time] [2021-11-05 19:30:43,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15281 states. [2021-11-05 19:30:44,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15281 to 15281. [2021-11-05 19:30:44,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15281 states, 15277 states have (on average 1.37533547162401) internal successors, (21011), 15280 states have internal predecessors, (21011), 0 states have call successors, (0), 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 19:30:44,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15281 states to 15281 states and 21011 transitions. [2021-11-05 19:30:44,402 INFO L78 Accepts]: Start accepts. Automaton has 15281 states and 21011 transitions. Word has length 188 [2021-11-05 19:30:44,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:30:44,405 INFO L470 AbstractCegarLoop]: Abstraction has 15281 states and 21011 transitions. [2021-11-05 19:30:44,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 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 19:30:44,405 INFO L276 IsEmpty]: Start isEmpty. Operand 15281 states and 21011 transitions. [2021-11-05 19:30:44,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-05 19:30:44,417 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:30:44,417 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:30:44,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 19:30:44,418 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 19:30:44,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:30:44,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1524045212, now seen corresponding path program 1 times [2021-11-05 19:30:44,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:30:44,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53866293] [2021-11-05 19:30:44,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:30:44,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:30:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:30:45,061 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:30:45,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:30:45,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53866293] [2021-11-05 19:30:45,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53866293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:30:45,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:30:45,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 19:30:45,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297447235] [2021-11-05 19:30:45,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:30:45,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 19:30:45,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:30:45,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 19:30:45,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 19:30:45,063 INFO L87 Difference]: Start difference. First operand 15281 states and 21011 transitions. Second operand has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 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 19:30:47,123 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:30:47,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:30:47,571 INFO L93 Difference]: Finished difference Result 30556 states and 42017 transitions. [2021-11-05 19:30:47,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 19:30:47,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 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 188 [2021-11-05 19:30:47,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:30:47,601 INFO L225 Difference]: With dead ends: 30556 [2021-11-05 19:30:47,601 INFO L226 Difference]: Without dead ends: 15281 [2021-11-05 19:30:47,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 111.91ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 19:30:47,625 INFO L933 BasicCegarLoop]: 12984 mSDtfsCounter, 6 mSDsluCounter, 38945 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2106.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 51929 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.70ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2223.49ms IncrementalHoareTripleChecker+Time [2021-11-05 19:30:47,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 51929 Invalid, 19 Unknown, 0 Unchecked, 30.70ms Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 2223.49ms Time] [2021-11-05 19:30:47,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15281 states. [2021-11-05 19:30:47,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15281 to 15281. [2021-11-05 19:30:47,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15281 states, 15277 states have (on average 1.3752045558682988) internal successors, (21009), 15280 states have internal predecessors, (21009), 0 states have call successors, (0), 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 19:30:47,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15281 states to 15281 states and 21009 transitions. [2021-11-05 19:30:47,963 INFO L78 Accepts]: Start accepts. Automaton has 15281 states and 21009 transitions. Word has length 188 [2021-11-05 19:30:47,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:30:47,964 INFO L470 AbstractCegarLoop]: Abstraction has 15281 states and 21009 transitions. [2021-11-05 19:30:47,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 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 19:30:47,964 INFO L276 IsEmpty]: Start isEmpty. Operand 15281 states and 21009 transitions. [2021-11-05 19:30:47,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-05 19:30:47,974 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:30:47,975 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:30:47,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 19:30:47,975 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 19:30:47,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:30:47,976 INFO L85 PathProgramCache]: Analyzing trace with hash 296433557, now seen corresponding path program 1 times [2021-11-05 19:30:47,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:30:47,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349699728] [2021-11-05 19:30:47,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:30:47,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:30:48,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:30:48,460 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:30:48,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:30:48,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349699728] [2021-11-05 19:30:48,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349699728] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:30:48,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:30:48,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 19:30:48,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281058159] [2021-11-05 19:30:48,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:30:48,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 19:30:48,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:30:48,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 19:30:48,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 19:30:48,462 INFO L87 Difference]: Start difference. First operand 15281 states and 21009 transitions. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 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 19:30:51,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:30:53,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:30:53,796 INFO L93 Difference]: Finished difference Result 55820 states and 77121 transitions. [2021-11-05 19:30:53,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 19:30:53,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2021-11-05 19:30:53,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:30:53,883 INFO L225 Difference]: With dead ends: 55820 [2021-11-05 19:30:53,884 INFO L226 Difference]: Without dead ends: 40545 [2021-11-05 19:30:53,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 182.76ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 19:30:53,918 INFO L933 BasicCegarLoop]: 17425 mSDtfsCounter, 30450 mSDsluCounter, 47453 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4086.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30450 SdHoareTripleChecker+Valid, 64878 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 73.78ms SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4407.75ms IncrementalHoareTripleChecker+Time [2021-11-05 19:30:53,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30450 Valid, 64878 Invalid, 725 Unknown, 0 Unchecked, 73.78ms Time], IncrementalHoareTripleChecker [148 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 4407.75ms Time] [2021-11-05 19:30:53,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40545 states. [2021-11-05 19:30:54,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40545 to 15281. [2021-11-05 19:30:54,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15281 states, 15277 states have (on average 1.3750736401125876) internal successors, (21007), 15280 states have internal predecessors, (21007), 0 states have call successors, (0), 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 19:30:54,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15281 states to 15281 states and 21007 transitions. [2021-11-05 19:30:54,435 INFO L78 Accepts]: Start accepts. Automaton has 15281 states and 21007 transitions. Word has length 192 [2021-11-05 19:30:54,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:30:54,436 INFO L470 AbstractCegarLoop]: Abstraction has 15281 states and 21007 transitions. [2021-11-05 19:30:54,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 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 19:30:54,436 INFO L276 IsEmpty]: Start isEmpty. Operand 15281 states and 21007 transitions. [2021-11-05 19:30:54,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-05 19:30:54,447 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:30:54,448 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:30:54,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 19:30:54,448 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 19:30:54,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:30:54,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1281381661, now seen corresponding path program 1 times [2021-11-05 19:30:54,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:30:54,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008758572] [2021-11-05 19:30:54,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:30:54,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:30:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:30:54,929 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-05 19:30:54,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:30:54,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008758572] [2021-11-05 19:30:54,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008758572] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:30:54,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:30:54,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 19:30:54,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502352395] [2021-11-05 19:30:54,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:30:54,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 19:30:54,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:30:54,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 19:30:54,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 19:30:54,930 INFO L87 Difference]: Start difference. First operand 15281 states and 21007 transitions. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 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 19:30:57,075 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:30:59,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:31:00,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:31:00,299 INFO L93 Difference]: Finished difference Result 73558 states and 101231 transitions. [2021-11-05 19:31:00,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 19:31:00,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 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 198 [2021-11-05 19:31:00,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:31:00,416 INFO L225 Difference]: With dead ends: 73558 [2021-11-05 19:31:00,417 INFO L226 Difference]: Without dead ends: 58291 [2021-11-05 19:31:00,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 78.97ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 19:31:00,450 INFO L933 BasicCegarLoop]: 24708 mSDtfsCounter, 46628 mSDsluCounter, 49119 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4157.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 46628 SdHoareTripleChecker+Valid, 73827 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 66.50ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4232.92ms IncrementalHoareTripleChecker+Time [2021-11-05 19:31:00,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46628 Valid, 73827 Invalid, 49 Unknown, 0 Unchecked, 66.50ms Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 2 Unknown, 0 Unchecked, 4232.92ms Time] [2021-11-05 19:31:00,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58291 states. [2021-11-05 19:31:01,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58291 to 15283. [2021-11-05 19:31:01,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15283 states, 15279 states have (on average 1.3750245434910662) internal successors, (21009), 15282 states have internal predecessors, (21009), 0 states have call successors, (0), 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 19:31:01,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15283 states to 15283 states and 21009 transitions. [2021-11-05 19:31:01,100 INFO L78 Accepts]: Start accepts. Automaton has 15283 states and 21009 transitions. Word has length 198 [2021-11-05 19:31:01,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:31:01,100 INFO L470 AbstractCegarLoop]: Abstraction has 15283 states and 21009 transitions. [2021-11-05 19:31:01,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 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 19:31:01,101 INFO L276 IsEmpty]: Start isEmpty. Operand 15283 states and 21009 transitions. [2021-11-05 19:31:01,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-05 19:31:01,113 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:31:01,114 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:31:01,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 19:31:01,114 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 19:31:01,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:31:01,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1679873506, now seen corresponding path program 1 times [2021-11-05 19:31:01,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:31:01,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533151910] [2021-11-05 19:31:01,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:31:01,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:31:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:31:01,662 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-05 19:31:01,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:31:01,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533151910] [2021-11-05 19:31:01,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533151910] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:31:01,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:31:01,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 19:31:01,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846634837] [2021-11-05 19:31:01,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:31:01,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 19:31:01,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:31:01,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 19:31:01,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 19:31:01,664 INFO L87 Difference]: Start difference. First operand 15283 states and 21009 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 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 19:31:07,518 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:31:10,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:31:10,891 INFO L93 Difference]: Finished difference Result 71156 states and 98463 transitions. [2021-11-05 19:31:10,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 19:31:10,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 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 199 [2021-11-05 19:31:10,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:31:11,010 INFO L225 Difference]: With dead ends: 71156 [2021-11-05 19:31:11,011 INFO L226 Difference]: Without dead ends: 55887 [2021-11-05 19:31:11,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 164.01ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 19:31:11,057 INFO L933 BasicCegarLoop]: 28537 mSDtfsCounter, 35381 mSDsluCounter, 69699 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7284.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 35381 SdHoareTripleChecker+Valid, 98236 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 104.60ms SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7699.50ms IncrementalHoareTripleChecker+Time [2021-11-05 19:31:11,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35381 Valid, 98236 Invalid, 1203 Unknown, 0 Unchecked, 104.60ms Time], IncrementalHoareTripleChecker [132 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 7699.50ms Time] [2021-11-05 19:31:11,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55887 states. [2021-11-05 19:31:11,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55887 to 15289. [2021-11-05 19:31:11,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15289 states, 15285 states have (on average 1.3748773307163886) internal successors, (21015), 15288 states have internal predecessors, (21015), 0 states have call successors, (0), 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 19:31:11,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15289 states to 15289 states and 21015 transitions. [2021-11-05 19:31:11,740 INFO L78 Accepts]: Start accepts. Automaton has 15289 states and 21015 transitions. Word has length 199 [2021-11-05 19:31:11,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:31:11,740 INFO L470 AbstractCegarLoop]: Abstraction has 15289 states and 21015 transitions. [2021-11-05 19:31:11,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 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 19:31:11,741 INFO L276 IsEmpty]: Start isEmpty. Operand 15289 states and 21015 transitions. [2021-11-05 19:31:11,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-05 19:31:11,752 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:31:11,752 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:31:11,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 19:31:11,752 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 19:31:11,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:31:11,753 INFO L85 PathProgramCache]: Analyzing trace with hash -463477491, now seen corresponding path program 1 times [2021-11-05 19:31:11,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:31:11,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588896021] [2021-11-05 19:31:11,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:31:11,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:31:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:31:12,089 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-05 19:31:12,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:31:12,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588896021] [2021-11-05 19:31:12,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588896021] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:31:12,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:31:12,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 19:31:12,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314850642] [2021-11-05 19:31:12,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:31:12,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 19:31:12,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:31:12,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 19:31:12,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 19:31:12,090 INFO L87 Difference]: Start difference. First operand 15289 states and 21015 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 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 19:31:13,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:31:13,416 INFO L93 Difference]: Finished difference Result 60862 states and 83699 transitions. [2021-11-05 19:31:13,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 19:31:13,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 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 199 [2021-11-05 19:31:13,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:31:13,487 INFO L225 Difference]: With dead ends: 60862 [2021-11-05 19:31:13,488 INFO L226 Difference]: Without dead ends: 45587 [2021-11-05 19:31:13,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 112.65ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 19:31:13,524 INFO L933 BasicCegarLoop]: 25832 mSDtfsCounter, 64013 mSDsluCounter, 51792 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 64013 SdHoareTripleChecker+Valid, 77624 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 67.59ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.40ms IncrementalHoareTripleChecker+Time [2021-11-05 19:31:13,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64013 Valid, 77624 Invalid, 17 Unknown, 0 Unchecked, 67.59ms Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 62.40ms Time] [2021-11-05 19:31:13,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45587 states. [2021-11-05 19:31:14,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45587 to 15292. [2021-11-05 19:31:14,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15292 states, 15288 states have (on average 1.3748037676609106) internal successors, (21018), 15291 states have internal predecessors, (21018), 0 states have call successors, (0), 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 19:31:14,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15292 states to 15292 states and 21018 transitions. [2021-11-05 19:31:14,135 INFO L78 Accepts]: Start accepts. Automaton has 15292 states and 21018 transitions. Word has length 199 [2021-11-05 19:31:14,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:31:14,136 INFO L470 AbstractCegarLoop]: Abstraction has 15292 states and 21018 transitions. [2021-11-05 19:31:14,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 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 19:31:14,136 INFO L276 IsEmpty]: Start isEmpty. Operand 15292 states and 21018 transitions. [2021-11-05 19:31:14,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-05 19:31:14,150 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:31:14,151 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:31:14,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 19:31:14,151 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 19:31:14,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:31:14,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1409454706, now seen corresponding path program 1 times [2021-11-05 19:31:14,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:31:14,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660668826] [2021-11-05 19:31:14,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:31:14,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:31:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:31:14,552 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-05 19:31:14,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:31:14,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660668826] [2021-11-05 19:31:14,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660668826] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:31:14,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:31:14,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 19:31:14,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145555116] [2021-11-05 19:31:14,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:31:14,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:31:14,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:31:14,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:31:14,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:31:14,555 INFO L87 Difference]: Start difference. First operand 15292 states and 21018 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 2 states have internal predecessors, (197), 0 states have call successors, (0), 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 19:31:15,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:31:15,535 INFO L93 Difference]: Finished difference Result 27988 states and 38499 transitions. [2021-11-05 19:31:15,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:31:15,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 2 states have internal predecessors, (197), 0 states have call successors, (0), 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 203 [2021-11-05 19:31:15,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:31:15,575 INFO L225 Difference]: With dead ends: 27988 [2021-11-05 19:31:15,575 INFO L226 Difference]: Without dead ends: 27984 [2021-11-05 19:31:15,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.08ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:31:15,586 INFO L933 BasicCegarLoop]: 12993 mSDtfsCounter, 10451 mSDsluCounter, 12630 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 375.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10451 SdHoareTripleChecker+Valid, 25623 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.09ms SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 430.18ms IncrementalHoareTripleChecker+Time [2021-11-05 19:31:15,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10451 Valid, 25623 Invalid, 149 Unknown, 0 Unchecked, 20.09ms Time], IncrementalHoareTripleChecker [72 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 430.18ms Time] [2021-11-05 19:31:15,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27984 states. [2021-11-05 19:31:16,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27984 to 27665. [2021-11-05 19:31:16,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27665 states, 27661 states have (on average 1.3761975344347637) internal successors, (38067), 27664 states have internal predecessors, (38067), 0 states have call successors, (0), 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 19:31:16,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27665 states to 27665 states and 38067 transitions. [2021-11-05 19:31:16,354 INFO L78 Accepts]: Start accepts. Automaton has 27665 states and 38067 transitions. Word has length 203 [2021-11-05 19:31:16,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:31:16,354 INFO L470 AbstractCegarLoop]: Abstraction has 27665 states and 38067 transitions. [2021-11-05 19:31:16,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 2 states have internal predecessors, (197), 0 states have call successors, (0), 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 19:31:16,355 INFO L276 IsEmpty]: Start isEmpty. Operand 27665 states and 38067 transitions. [2021-11-05 19:31:16,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-05 19:31:16,367 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:31:16,368 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:31:16,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 19:31:16,368 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 19:31:16,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:31:16,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1561750938, now seen corresponding path program 1 times [2021-11-05 19:31:16,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:31:16,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461320626] [2021-11-05 19:31:16,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:31:16,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:31:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:31:16,782 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-05 19:31:16,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:31:16,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461320626] [2021-11-05 19:31:16,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461320626] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:31:16,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:31:16,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:31:16,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645666621] [2021-11-05 19:31:16,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:31:16,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:31:16,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:31:16,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:31:16,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:31:16,784 INFO L87 Difference]: Start difference. First operand 27665 states and 38067 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 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 19:31:20,340 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:31:22,407 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:31:25,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:31:25,442 INFO L93 Difference]: Finished difference Result 55333 states and 76151 transitions. [2021-11-05 19:31:25,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:31:25,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 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 205 [2021-11-05 19:31:25,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:31:25,503 INFO L225 Difference]: With dead ends: 55333 [2021-11-05 19:31:25,503 INFO L226 Difference]: Without dead ends: 27680 [2021-11-05 19:31:25,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.83ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:31:25,545 INFO L933 BasicCegarLoop]: 12980 mSDtfsCounter, 0 mSDsluCounter, 12355 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7033.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25335 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.89ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7616.19ms IncrementalHoareTripleChecker+Time [2021-11-05 19:31:25,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 25335 Invalid, 638 Unknown, 0 Unchecked, 23.89ms Time], IncrementalHoareTripleChecker [8 Valid, 628 Invalid, 2 Unknown, 0 Unchecked, 7616.19ms Time] [2021-11-05 19:31:25,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27680 states. [2021-11-05 19:31:26,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27680 to 27680. [2021-11-05 19:31:26,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27680 states, 27676 states have (on average 1.375993640699523) internal successors, (38082), 27679 states have internal predecessors, (38082), 0 states have call successors, (0), 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 19:31:26,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27680 states to 27680 states and 38082 transitions. [2021-11-05 19:31:26,407 INFO L78 Accepts]: Start accepts. Automaton has 27680 states and 38082 transitions. Word has length 205 [2021-11-05 19:31:26,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:31:26,407 INFO L470 AbstractCegarLoop]: Abstraction has 27680 states and 38082 transitions. [2021-11-05 19:31:26,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 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 19:31:26,408 INFO L276 IsEmpty]: Start isEmpty. Operand 27680 states and 38082 transitions. [2021-11-05 19:31:26,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-05 19:31:26,418 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:31:26,419 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:31:26,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 19:31:26,419 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 19:31:26,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:31:26,420 INFO L85 PathProgramCache]: Analyzing trace with hash 418668068, now seen corresponding path program 1 times [2021-11-05 19:31:26,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:31:26,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776443048] [2021-11-05 19:31:26,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:31:26,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:31:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:31:26,910 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-05 19:31:26,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:31:26,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776443048] [2021-11-05 19:31:26,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776443048] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 19:31:26,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987175011] [2021-11-05 19:31:26,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:31:26,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 19:31:26,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:31:26,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 19:31:26,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 19:31:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:31:28,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 4321 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-05 19:31:28,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 19:31:29,365 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 19:31:29,366 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 19:31:29,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987175011] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:31:29,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-05 19:31:29,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-05 19:31:29,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852265408] [2021-11-05 19:31:29,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:31:29,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 19:31:29,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:31:29,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 19:31:29,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-05 19:31:29,368 INFO L87 Difference]: Start difference. First operand 27680 states and 38082 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:31:31,427 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:31:32,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:31:32,472 INFO L93 Difference]: Finished difference Result 55359 states and 76166 transitions. [2021-11-05 19:31:32,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 19:31:32,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207 [2021-11-05 19:31:32,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:31:32,520 INFO L225 Difference]: With dead ends: 55359 [2021-11-05 19:31:32,520 INFO L226 Difference]: Without dead ends: 27666 [2021-11-05 19:31:32,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 162.91ms TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-05 19:31:32,555 INFO L933 BasicCegarLoop]: 12982 mSDtfsCounter, 6 mSDsluCounter, 38938 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2098.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 51920 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.65ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2229.14ms IncrementalHoareTripleChecker+Time [2021-11-05 19:31:32,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 51920 Invalid, 17 Unknown, 0 Unchecked, 21.65ms Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2229.14ms Time] [2021-11-05 19:31:32,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27666 states. [2021-11-05 19:31:33,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27666 to 27522. [2021-11-05 19:31:33,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27522 states, 27518 states have (on average 1.3767715677011412) internal successors, (37886), 27521 states have internal predecessors, (37886), 0 states have call successors, (0), 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 19:31:33,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27522 states to 27522 states and 37886 transitions. [2021-11-05 19:31:33,422 INFO L78 Accepts]: Start accepts. Automaton has 27522 states and 37886 transitions. Word has length 207 [2021-11-05 19:31:33,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:31:33,423 INFO L470 AbstractCegarLoop]: Abstraction has 27522 states and 37886 transitions. [2021-11-05 19:31:33,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:31:33,423 INFO L276 IsEmpty]: Start isEmpty. Operand 27522 states and 37886 transitions. [2021-11-05 19:31:33,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-05 19:31:33,433 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:31:33,434 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:31:33,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-05 19:31:33,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-05 19:31:33,652 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 19:31:33,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:31:33,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1327568015, now seen corresponding path program 1 times [2021-11-05 19:31:33,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:31:33,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841744059] [2021-11-05 19:31:33,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:31:33,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:31:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:31:34,160 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-05 19:31:34,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:31:34,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841744059] [2021-11-05 19:31:34,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841744059] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 19:31:34,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103628741] [2021-11-05 19:31:34,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:31:34,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 19:31:34,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:31:34,162 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 19:31:34,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-05 19:31:36,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:31:36,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 4400 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-05 19:31:36,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 19:31:36,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-05 19:31:36,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-05 19:31:36,979 INFO L354 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2021-11-05 19:31:36,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 26 [2021-11-05 19:31:37,008 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-05 19:31:37,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2021-11-05 19:31:41,834 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-05 19:31:41,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 35 treesize of output 50 [2021-11-05 19:31:41,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2021-11-05 19:31:50,000 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-05 19:31:50,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 36 [2021-11-05 19:31:50,008 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Should have been eliminated by DER [2021-11-05 19:31:50,009 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-05 19:31:50,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2021-11-05 19:31:50,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559343953] [2021-11-05 19:31:50,009 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-05 19:31:50,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 19:31:50,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:31:50,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 19:31:50,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-11-05 19:31:50,010 INFO L87 Difference]: Start difference. First operand 27522 states and 37886 transitions. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 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 19:31:50,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 19:31:50,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 10738.35ms TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-11-05 19:31:50,011 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.04ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 19:31:50,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 0.04ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 19:31:50,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-05 19:31:50,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-05 19:31:50,228 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@396480c3 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:359) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:206) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:131) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.checkInternal(ChainingHoareTripleChecker.java:436) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.checkInternal(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:868) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:784) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-05 19:31:50,231 INFO L158 Benchmark]: Toolchain (without parser) took 246025.05ms. Allocated memory was 75.5MB in the beginning and 3.8GB in the end (delta: 3.7GB). Free memory was 52.0MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. [2021-11-05 19:31:50,231 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 38.3MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 19:31:50,231 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3422.45ms. Allocated memory was 75.5MB in the beginning and 239.1MB in the end (delta: 163.6MB). Free memory was 51.7MB in the beginning and 88.8MB in the end (delta: -37.1MB). Peak memory consumption was 133.2MB. Max. memory is 16.1GB. [2021-11-05 19:31:50,231 INFO L158 Benchmark]: Boogie Procedure Inliner took 1802.25ms. Allocated memory was 239.1MB in the beginning and 1.0GB in the end (delta: 805.3MB). Free memory was 88.8MB in the beginning and 719.6MB in the end (delta: -630.8MB). Peak memory consumption was 213.3MB. Max. memory is 16.1GB. [2021-11-05 19:31:50,232 INFO L158 Benchmark]: Boogie Preprocessor took 2031.10ms. Allocated memory is still 1.0GB. Free memory was 719.6MB in the beginning and 500.5MB in the end (delta: 219.1MB). Peak memory consumption was 269.5MB. Max. memory is 16.1GB. [2021-11-05 19:31:50,232 INFO L158 Benchmark]: RCFGBuilder took 169289.53ms. Allocated memory was 1.0GB in the beginning and 3.1GB in the end (delta: 2.1GB). Free memory was 500.5MB in the beginning and 1.7GB in the end (delta: -1.2GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2021-11-05 19:31:50,232 INFO L158 Benchmark]: TraceAbstraction took 69473.35ms. Allocated memory was 3.1GB in the beginning and 3.8GB in the end (delta: 664.8MB). Free memory was 1.7GB in the beginning and 1.8GB in the end (delta: -91.2MB). Peak memory consumption was 574.6MB. Max. memory is 16.1GB. [2021-11-05 19:31:50,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 38.3MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3422.45ms. Allocated memory was 75.5MB in the beginning and 239.1MB in the end (delta: 163.6MB). Free memory was 51.7MB in the beginning and 88.8MB in the end (delta: -37.1MB). Peak memory consumption was 133.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1802.25ms. Allocated memory was 239.1MB in the beginning and 1.0GB in the end (delta: 805.3MB). Free memory was 88.8MB in the beginning and 719.6MB in the end (delta: -630.8MB). Peak memory consumption was 213.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 2031.10ms. Allocated memory is still 1.0GB. Free memory was 719.6MB in the beginning and 500.5MB in the end (delta: 219.1MB). Peak memory consumption was 269.5MB. Max. memory is 16.1GB. * RCFGBuilder took 169289.53ms. Allocated memory was 1.0GB in the beginning and 3.1GB in the end (delta: 2.1GB). Free memory was 500.5MB in the beginning and 1.7GB in the end (delta: -1.2GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. * TraceAbstraction took 69473.35ms. Allocated memory was 3.1GB in the beginning and 3.8GB in the end (delta: 664.8MB). Free memory was 1.7GB in the beginning and 1.8GB in the end (delta: -91.2MB). Peak memory consumption was 574.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@396480c3 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@396480c3: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-05 19:31:50,451 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-05 19:31:50,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 063e80a6567f3b510ecc2efbcb0a8f49fa12a56c608116a0a2a3dc1d5e72e4c2 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 19:31:52,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 19:31:52,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 19:31:52,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 19:31:52,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 19:31:52,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 19:31:52,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 19:31:52,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 19:31:52,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 19:31:52,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 19:31:52,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 19:31:52,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 19:31:52,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 19:31:52,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 19:31:52,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 19:31:52,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 19:31:52,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 19:31:52,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 19:31:52,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 19:31:52,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 19:31:52,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 19:31:52,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 19:31:52,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 19:31:52,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 19:31:52,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 19:31:52,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 19:31:52,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 19:31:52,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 19:31:52,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 19:31:52,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 19:31:52,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 19:31:52,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 19:31:52,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 19:31:52,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 19:31:52,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 19:31:52,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 19:31:52,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 19:31:52,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 19:31:52,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 19:31:52,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 19:31:52,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 19:31:52,218 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-05 19:31:52,246 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 19:31:52,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 19:31:52,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 19:31:52,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 19:31:52,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 19:31:52,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 19:31:52,249 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 19:31:52,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 19:31:52,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 19:31:52,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 19:31:52,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 19:31:52,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 19:31:52,250 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-05 19:31:52,250 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-05 19:31:52,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 19:31:52,251 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 19:31:52,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 19:31:52,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 19:31:52,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 19:31:52,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 19:31:52,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:31:52,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 19:31:52,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 19:31:52,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 19:31:52,252 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-05 19:31:52,252 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-05 19:31:52,252 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 19:31:52,253 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 19:31:52,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 19:31:52,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 19:31:52,253 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-05 19:31:52,253 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 063e80a6567f3b510ecc2efbcb0a8f49fa12a56c608116a0a2a3dc1d5e72e4c2 [2021-11-05 19:31:52,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 19:31:52,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 19:31:52,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 19:31:52,515 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 19:31:52,516 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 19:31:52,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i [2021-11-05 19:31:52,556 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d0b435b7/ba1e66a7ad034f7194c9fb4b04b2c601/FLAG850a5fc4d [2021-11-05 19:31:53,209 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 19:31:53,209 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i [2021-11-05 19:31:53,260 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d0b435b7/ba1e66a7ad034f7194c9fb4b04b2c601/FLAG850a5fc4d [2021-11-05 19:31:53,291 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d0b435b7/ba1e66a7ad034f7194c9fb4b04b2c601 [2021-11-05 19:31:53,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 19:31:53,294 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 19:31:53,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 19:31:53,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 19:31:53,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 19:31:53,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:31:53" (1/1) ... [2021-11-05 19:31:53,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bd8c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:31:53, skipping insertion in model container [2021-11-05 19:31:53,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:31:53" (1/1) ... [2021-11-05 19:31:53,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 19:31:53,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 19:31:56,069 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i[478905,478918] [2021-11-05 19:31:56,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:31:56,173 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 19:31:56,660 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i[478905,478918] [2021-11-05 19:31:56,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:31:56,773 INFO L208 MainTranslator]: Completed translation [2021-11-05 19:31:56,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:31:56 WrapperNode [2021-11-05 19:31:56,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 19:31:56,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 19:31:56,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 19:31:56,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 19:31:56,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:31:56" (1/1) ... [2021-11-05 19:31:56,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:31:56" (1/1) ... [2021-11-05 19:31:58,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 19:31:58,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 19:31:58,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 19:31:58,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 19:31:58,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:31:56" (1/1) ... [2021-11-05 19:31:58,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:31:56" (1/1) ... [2021-11-05 19:31:58,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:31:56" (1/1) ... [2021-11-05 19:31:58,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:31:56" (1/1) ... [2021-11-05 19:31:59,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:31:56" (1/1) ... [2021-11-05 19:31:59,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:31:56" (1/1) ... [2021-11-05 19:31:59,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:31:56" (1/1) ... [2021-11-05 19:32:00,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 19:32:00,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 19:32:00,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 19:32:00,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 19:32:00,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:31:56" (1/1) ... [2021-11-05 19:32:00,187 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:32:00,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:32:00,202 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 19:32:00,243 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 19:32:00,248 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-05 19:32:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 19:32:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-05 19:32:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-05 19:32:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-05 19:32:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-05 19:32:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 19:32:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 19:32:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 19:32:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-05 19:32:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-05 19:32:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-05 19:32:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-05 19:32:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 19:32:00,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 19:32:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-05 19:32:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-05 19:32:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-05 19:32:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 19:32:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-05 19:32:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 19:32:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-05 19:32:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 19:32:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 19:32:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-05 19:32:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-05 19:32:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-05 19:32:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-05 19:32:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 19:32:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-05 19:32:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-05 19:32:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-05 19:32:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 Killed by 15