./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 19:34:37,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 19:34:37,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 19:34:37,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 19:34:37,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 19:34:37,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 19:34:37,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 19:34:37,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 19:34:37,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 19:34:37,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 19:34:37,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 19:34:37,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 19:34:37,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 19:34:37,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 19:34:37,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 19:34:37,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 19:34:37,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 19:34:37,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 19:34:37,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 19:34:37,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 19:34:37,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 19:34:37,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 19:34:37,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 19:34:37,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 19:34:37,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 19:34:37,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 19:34:37,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 19:34:37,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 19:34:37,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 19:34:37,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 19:34:37,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 19:34:37,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 19:34:37,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 19:34:37,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 19:34:37,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 19:34:37,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 19:34:37,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 19:34:37,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 19:34:37,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 19:34:37,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 19:34:37,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 19:34:37,536 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 19:34:37,563 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 19:34:37,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 19:34:37,564 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 19:34:37,564 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 19:34:37,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 19:34:37,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 19:34:37,566 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 19:34:37,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 19:34:37,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 19:34:37,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 19:34:37,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 19:34:37,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 19:34:37,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 19:34:37,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 19:34:37,568 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 19:34:37,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 19:34:37,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 19:34:37,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 19:34:37,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 19:34:37,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 19:34:37,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 19:34:37,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 19:34:37,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 19:34:37,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 19:34:37,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 19:34:37,569 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 19:34:37,570 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 19:34:37,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 19:34:37,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 19:34:37,571 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 [2021-11-07 19:34:37,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 19:34:37,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 19:34:37,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 19:34:37,752 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 19:34:37,753 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 19:34:37,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-07 19:34:37,796 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/291468abf/11e4d8b4ed8c450b80e158bf6445dd0e/FLAG0ba71c601 [2021-11-07 19:34:38,520 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 19:34:38,521 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-07 19:34:38,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/291468abf/11e4d8b4ed8c450b80e158bf6445dd0e/FLAG0ba71c601 [2021-11-07 19:34:38,791 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/291468abf/11e4d8b4ed8c450b80e158bf6445dd0e [2021-11-07 19:34:38,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 19:34:38,796 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 19:34:38,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 19:34:38,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 19:34:38,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 19:34:38,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:34:38" (1/1) ... [2021-11-07 19:34:38,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43162825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:38, skipping insertion in model container [2021-11-07 19:34:38,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:34:38" (1/1) ... [2021-11-07 19:34:38,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 19:34:38,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 19:34:41,664 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2021-11-07 19:34:41,666 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2021-11-07 19:34:41,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 19:34:41,747 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 19:34:42,054 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2021-11-07 19:34:42,055 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2021-11-07 19:34:42,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 19:34:42,260 INFO L208 MainTranslator]: Completed translation [2021-11-07 19:34:42,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:42 WrapperNode [2021-11-07 19:34:42,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 19:34:42,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 19:34:42,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 19:34:42,262 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 19:34:42,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:42" (1/1) ... [2021-11-07 19:34:42,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:42" (1/1) ... [2021-11-07 19:34:47,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 19:34:47,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 19:34:47,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 19:34:47,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 19:34:47,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:42" (1/1) ... [2021-11-07 19:34:47,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:42" (1/1) ... [2021-11-07 19:34:48,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:42" (1/1) ... [2021-11-07 19:34:48,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:42" (1/1) ... [2021-11-07 19:34:50,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:42" (1/1) ... [2021-11-07 19:34:50,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:42" (1/1) ... [2021-11-07 19:34:50,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:42" (1/1) ... [2021-11-07 19:34:51,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 19:34:51,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 19:34:51,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 19:34:51,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 19:34:51,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:42" (1/1) ... [2021-11-07 19:34:51,713 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 19:34:51,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 19:34:51,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 19:34:51,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 19:34:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 19:34:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 19:34:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 19:34:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 19:34:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 19:34:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 19:34:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 19:34:51,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 19:34:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 19:34:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 19:34:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 19:34:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 19:34:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 19:34:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 19:34:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 19:34:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-07 19:41:02,015 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_14_returnLabel: main_#res := 0; [2021-11-07 19:41:02,018 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 19:41:02,024 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10815: #t~ret2830 := main_#res; [2021-11-07 19:41:02,025 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_2_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset; [2021-11-07 19:41:02,098 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 19:41:02,099 INFO L299 CfgBuilder]: Removed 35407 assume(true) statements. [2021-11-07 19:41:02,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:41:02 BoogieIcfgContainer [2021-11-07 19:41:02,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 19:41:02,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 19:41:02,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 19:41:02,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 19:41:02,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:34:38" (1/3) ... [2021-11-07 19:41:02,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21201676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:41:02, skipping insertion in model container [2021-11-07 19:41:02,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:42" (2/3) ... [2021-11-07 19:41:02,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21201676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:41:02, skipping insertion in model container [2021-11-07 19:41:02,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:41:02" (3/3) ... [2021-11-07 19:41:02,129 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-07 19:41:02,136 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 19:41:02,136 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2021-11-07 19:41:02,237 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 19:41:02,246 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 19:41:02,246 INFO L340 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2021-11-07 19:41:02,514 INFO L276 IsEmpty]: Start isEmpty. Operand has 33451 states, 33410 states have (on average 1.2882370547740198) internal successors, (43040), 33450 states have internal predecessors, (43040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:02,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-07 19:41:02,530 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:41:02,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:41:02,532 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 38 more)] === [2021-11-07 19:41:02,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:41:02,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1530904466, now seen corresponding path program 1 times [2021-11-07 19:41:02,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:41:02,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313695638] [2021-11-07 19:41:02,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:41:02,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:41:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:41:03,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:41:03,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:41:03,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313695638] [2021-11-07 19:41:03,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313695638] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:41:03,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:41:03,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 19:41:03,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331877899] [2021-11-07 19:41:03,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:41:03,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:41:03,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:41:03,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:41:03,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:41:03,821 INFO L87 Difference]: Start difference. First operand has 33451 states, 33410 states have (on average 1.2882370547740198) internal successors, (43040), 33450 states have internal predecessors, (43040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:05,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:41:05,126 INFO L93 Difference]: Finished difference Result 66864 states and 86032 transitions. [2021-11-07 19:41:05,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:41:05,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-07 19:41:05,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:41:05,255 INFO L225 Difference]: With dead ends: 66864 [2021-11-07 19:41:05,256 INFO L226 Difference]: Without dead ends: 33062 [2021-11-07 19:41:05,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.02ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:41:05,319 INFO L933 BasicCegarLoop]: 40965 mSDtfsCounter, 40946 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 321.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 40946 SdHoareTripleChecker+Valid, 40965 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 74.44ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 347.83ms IncrementalHoareTripleChecker+Time [2021-11-07 19:41:05,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40946 Valid, 40965 Invalid, 83 Unknown, 0 Unchecked, 74.44ms Time], IncrementalHoareTripleChecker [40 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 347.83ms Time] [2021-11-07 19:41:05,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33062 states. [2021-11-07 19:41:06,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33062 to 33062. [2021-11-07 19:41:06,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33062 states, 33021 states have (on average 1.2231610187456468) internal successors, (40390), 33061 states have internal predecessors, (40390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:06,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33062 states to 33062 states and 40390 transitions. [2021-11-07 19:41:06,312 INFO L78 Accepts]: Start accepts. Automaton has 33062 states and 40390 transitions. Word has length 66 [2021-11-07 19:41:06,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:41:06,313 INFO L470 AbstractCegarLoop]: Abstraction has 33062 states and 40390 transitions. [2021-11-07 19:41:06,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:06,314 INFO L276 IsEmpty]: Start isEmpty. Operand 33062 states and 40390 transitions. [2021-11-07 19:41:06,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 19:41:06,316 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:41:06,317 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] [2021-11-07 19:41:06,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 19:41:06,317 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 38 more)] === [2021-11-07 19:41:06,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:41:06,318 INFO L85 PathProgramCache]: Analyzing trace with hash 213275673, now seen corresponding path program 1 times [2021-11-07 19:41:06,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:41:06,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262859877] [2021-11-07 19:41:06,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:41:06,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:41:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:41:06,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:41:06,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:41:06,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262859877] [2021-11-07 19:41:06,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262859877] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:41:06,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:41:06,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:41:06,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753674422] [2021-11-07 19:41:06,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:41:06,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:41:06,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:41:06,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:41:06,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:41:06,920 INFO L87 Difference]: Start difference. First operand 33062 states and 40390 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:08,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:41:08,805 INFO L93 Difference]: Finished difference Result 66096 states and 80751 transitions. [2021-11-07 19:41:08,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:41:08,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2021-11-07 19:41:08,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:41:08,876 INFO L225 Difference]: With dead ends: 66096 [2021-11-07 19:41:08,876 INFO L226 Difference]: Without dead ends: 33062 [2021-11-07 19:41:08,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 138.74ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:41:08,927 INFO L933 BasicCegarLoop]: 40267 mSDtfsCounter, 80634 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 722.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 80634 SdHoareTripleChecker+Valid, 40267 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 200.66ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 763.32ms IncrementalHoareTripleChecker+Time [2021-11-07 19:41:08,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80634 Valid, 40267 Invalid, 123 Unknown, 0 Unchecked, 200.66ms Time], IncrementalHoareTripleChecker [41 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 763.32ms Time] [2021-11-07 19:41:08,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33062 states. [2021-11-07 19:41:09,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33062 to 33062. [2021-11-07 19:41:09,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33062 states, 33021 states have (on average 1.2219193846340208) internal successors, (40349), 33061 states have internal predecessors, (40349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:09,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33062 states to 33062 states and 40349 transitions. [2021-11-07 19:41:09,719 INFO L78 Accepts]: Start accepts. Automaton has 33062 states and 40349 transitions. Word has length 67 [2021-11-07 19:41:09,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:41:09,719 INFO L470 AbstractCegarLoop]: Abstraction has 33062 states and 40349 transitions. [2021-11-07 19:41:09,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:09,719 INFO L276 IsEmpty]: Start isEmpty. Operand 33062 states and 40349 transitions. [2021-11-07 19:41:09,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 19:41:09,720 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:41:09,721 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] [2021-11-07 19:41:09,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 19:41:09,721 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 38 more)] === [2021-11-07 19:41:09,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:41:09,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1978362291, now seen corresponding path program 1 times [2021-11-07 19:41:09,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:41:09,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979841212] [2021-11-07 19:41:09,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:41:09,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:41:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:41:10,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:41:10,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:41:10,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979841212] [2021-11-07 19:41:10,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979841212] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:41:10,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:41:10,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:41:10,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697905396] [2021-11-07 19:41:10,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:41:10,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:41:10,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:41:10,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:41:10,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:41:10,363 INFO L87 Difference]: Start difference. First operand 33062 states and 40349 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:11,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:41:11,917 INFO L93 Difference]: Finished difference Result 66096 states and 80669 transitions. [2021-11-07 19:41:11,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:41:11,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2021-11-07 19:41:11,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:41:11,994 INFO L225 Difference]: With dead ends: 66096 [2021-11-07 19:41:11,994 INFO L226 Difference]: Without dead ends: 33062 [2021-11-07 19:41:12,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 123.44ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:41:12,135 INFO L933 BasicCegarLoop]: 40226 mSDtfsCounter, 80551 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 678.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 80551 SdHoareTripleChecker+Valid, 40226 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.53ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 711.82ms IncrementalHoareTripleChecker+Time [2021-11-07 19:41:12,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80551 Valid, 40226 Invalid, 123 Unknown, 0 Unchecked, 54.53ms Time], IncrementalHoareTripleChecker [41 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 711.82ms Time] [2021-11-07 19:41:12,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33062 states. [2021-11-07 19:41:12,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33062 to 33062. [2021-11-07 19:41:12,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33062 states, 33021 states have (on average 1.220677750522395) internal successors, (40308), 33061 states have internal predecessors, (40308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:13,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33062 states to 33062 states and 40308 transitions. [2021-11-07 19:41:13,006 INFO L78 Accepts]: Start accepts. Automaton has 33062 states and 40308 transitions. Word has length 68 [2021-11-07 19:41:13,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:41:13,006 INFO L470 AbstractCegarLoop]: Abstraction has 33062 states and 40308 transitions. [2021-11-07 19:41:13,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:13,007 INFO L276 IsEmpty]: Start isEmpty. Operand 33062 states and 40308 transitions. [2021-11-07 19:41:13,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 19:41:13,008 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:41:13,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:41:13,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 19:41:13,008 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 38 more)] === [2021-11-07 19:41:13,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:41:13,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1199513484, now seen corresponding path program 1 times [2021-11-07 19:41:13,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:41:13,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845292834] [2021-11-07 19:41:13,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:41:13,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:41:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:41:13,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:41:13,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:41:13,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845292834] [2021-11-07 19:41:13,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845292834] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:41:13,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:41:13,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:41:13,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57804437] [2021-11-07 19:41:13,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:41:13,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:41:13,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:41:13,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:41:13,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:41:13,449 INFO L87 Difference]: Start difference. First operand 33062 states and 40308 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:15,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:41:15,205 INFO L93 Difference]: Finished difference Result 66096 states and 80587 transitions. [2021-11-07 19:41:15,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:41:15,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-07 19:41:15,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:41:15,266 INFO L225 Difference]: With dead ends: 66096 [2021-11-07 19:41:15,266 INFO L226 Difference]: Without dead ends: 33062 [2021-11-07 19:41:15,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 129.94ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:41:15,307 INFO L933 BasicCegarLoop]: 40185 mSDtfsCounter, 80468 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 708.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 80468 SdHoareTripleChecker+Valid, 40185 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 52.34ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 743.98ms IncrementalHoareTripleChecker+Time [2021-11-07 19:41:15,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80468 Valid, 40185 Invalid, 123 Unknown, 0 Unchecked, 52.34ms Time], IncrementalHoareTripleChecker [41 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 743.98ms Time] [2021-11-07 19:41:15,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33062 states. [2021-11-07 19:41:16,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33062 to 33062. [2021-11-07 19:41:16,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33062 states, 33021 states have (on average 1.219436116410769) internal successors, (40267), 33061 states have internal predecessors, (40267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:16,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33062 states to 33062 states and 40267 transitions. [2021-11-07 19:41:16,273 INFO L78 Accepts]: Start accepts. Automaton has 33062 states and 40267 transitions. Word has length 69 [2021-11-07 19:41:16,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:41:16,274 INFO L470 AbstractCegarLoop]: Abstraction has 33062 states and 40267 transitions. [2021-11-07 19:41:16,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:16,275 INFO L276 IsEmpty]: Start isEmpty. Operand 33062 states and 40267 transitions. [2021-11-07 19:41:16,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 19:41:16,276 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:41:16,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:41:16,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 19:41:16,276 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 38 more)] === [2021-11-07 19:41:16,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:41:16,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1470112008, now seen corresponding path program 1 times [2021-11-07 19:41:16,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:41:16,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939932555] [2021-11-07 19:41:16,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:41:16,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:41:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:41:16,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:41:16,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:41:16,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939932555] [2021-11-07 19:41:16,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939932555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:41:16,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:41:16,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:41:16,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34902047] [2021-11-07 19:41:16,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:41:16,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:41:16,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:41:16,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:41:16,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:41:16,789 INFO L87 Difference]: Start difference. First operand 33062 states and 40267 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:18,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:41:18,715 INFO L93 Difference]: Finished difference Result 66096 states and 80505 transitions. [2021-11-07 19:41:18,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:41:18,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-07 19:41:18,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:41:18,761 INFO L225 Difference]: With dead ends: 66096 [2021-11-07 19:41:18,761 INFO L226 Difference]: Without dead ends: 33062 [2021-11-07 19:41:18,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 138.69ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:41:18,796 INFO L933 BasicCegarLoop]: 40144 mSDtfsCounter, 80385 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 673.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 80385 SdHoareTripleChecker+Valid, 40144 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 57.24ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 704.41ms IncrementalHoareTripleChecker+Time [2021-11-07 19:41:18,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80385 Valid, 40144 Invalid, 123 Unknown, 0 Unchecked, 57.24ms Time], IncrementalHoareTripleChecker [41 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 704.41ms Time] [2021-11-07 19:41:18,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33062 states. [2021-11-07 19:41:19,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33062 to 33062. [2021-11-07 19:41:19,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33062 states, 33021 states have (on average 1.218194482299143) internal successors, (40226), 33061 states have internal predecessors, (40226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:19,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33062 states to 33062 states and 40226 transitions. [2021-11-07 19:41:19,700 INFO L78 Accepts]: Start accepts. Automaton has 33062 states and 40226 transitions. Word has length 70 [2021-11-07 19:41:19,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:41:19,700 INFO L470 AbstractCegarLoop]: Abstraction has 33062 states and 40226 transitions. [2021-11-07 19:41:19,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:19,703 INFO L276 IsEmpty]: Start isEmpty. Operand 33062 states and 40226 transitions. [2021-11-07 19:41:19,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-07 19:41:19,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:41:19,704 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] [2021-11-07 19:41:19,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 19:41:19,704 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 38 more)] === [2021-11-07 19:41:19,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:41:19,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1670694705, now seen corresponding path program 1 times [2021-11-07 19:41:19,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:41:19,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044906184] [2021-11-07 19:41:19,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:41:19,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:41:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:41:20,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:41:20,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:41:20,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044906184] [2021-11-07 19:41:20,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044906184] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:41:20,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:41:20,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:41:20,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712385963] [2021-11-07 19:41:20,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:41:20,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:41:20,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:41:20,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:41:20,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:41:20,183 INFO L87 Difference]: Start difference. First operand 33062 states and 40226 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:22,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:41:22,334 INFO L93 Difference]: Finished difference Result 66096 states and 80423 transitions. [2021-11-07 19:41:22,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:41:22,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2021-11-07 19:41:22,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:41:22,384 INFO L225 Difference]: With dead ends: 66096 [2021-11-07 19:41:22,384 INFO L226 Difference]: Without dead ends: 33062 [2021-11-07 19:41:22,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 134.71ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:41:22,428 INFO L933 BasicCegarLoop]: 40103 mSDtfsCounter, 80302 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 834.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 80302 SdHoareTripleChecker+Valid, 40103 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 57.81ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 869.02ms IncrementalHoareTripleChecker+Time [2021-11-07 19:41:22,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80302 Valid, 40103 Invalid, 123 Unknown, 0 Unchecked, 57.81ms Time], IncrementalHoareTripleChecker [41 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 869.02ms Time] [2021-11-07 19:41:22,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33062 states. [2021-11-07 19:41:23,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33062 to 33062. [2021-11-07 19:41:23,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33062 states, 33021 states have (on average 1.2169528481875171) internal successors, (40185), 33061 states have internal predecessors, (40185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:23,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33062 states to 33062 states and 40185 transitions. [2021-11-07 19:41:23,612 INFO L78 Accepts]: Start accepts. Automaton has 33062 states and 40185 transitions. Word has length 71 [2021-11-07 19:41:23,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:41:23,612 INFO L470 AbstractCegarLoop]: Abstraction has 33062 states and 40185 transitions. [2021-11-07 19:41:23,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:23,612 INFO L276 IsEmpty]: Start isEmpty. Operand 33062 states and 40185 transitions. [2021-11-07 19:41:23,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 19:41:23,613 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:41:23,614 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] [2021-11-07 19:41:23,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 19:41:23,614 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 38 more)] === [2021-11-07 19:41:23,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:41:23,614 INFO L85 PathProgramCache]: Analyzing trace with hash -251306045, now seen corresponding path program 1 times [2021-11-07 19:41:23,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:41:23,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352877464] [2021-11-07 19:41:23,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:41:23,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:41:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:41:24,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:41:24,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:41:24,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352877464] [2021-11-07 19:41:24,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352877464] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:41:24,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:41:24,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:41:24,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302251425] [2021-11-07 19:41:24,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:41:24,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:41:24,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:41:24,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:41:24,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:41:24,090 INFO L87 Difference]: Start difference. First operand 33062 states and 40185 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:41:26,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:41:26,202 INFO L93 Difference]: Finished difference Result 66096 states and 80341 transitions. [2021-11-07 19:41:26,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:41:26,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2021-11-07 19:41:26,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:41:26,242 INFO L225 Difference]: With dead ends: 66096 [2021-11-07 19:41:26,243 INFO L226 Difference]: Without dead ends: 33062 [2021-11-07 19:41:26,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 124.54ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:41:26,280 INFO L933 BasicCegarLoop]: 40062 mSDtfsCounter, 80219 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 647.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 80219 SdHoareTripleChecker+Valid, 40062 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 56.19ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 682.61ms IncrementalHoareTripleChecker+Time [2021-11-07 19:41:26,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80219 Valid, 40062 Invalid, 123 Unknown, 0 Unchecked, 56.19ms Time], IncrementalHoareTripleChecker [41 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 682.61ms Time] [2021-11-07 19:41:26,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33062 states.