./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 fcb8e130 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_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-dev-fcb8e13 [2021-11-23 04:15:42,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 04:15:42,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 04:15:42,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 04:15:42,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 04:15:42,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 04:15:42,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 04:15:42,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 04:15:42,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 04:15:42,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 04:15:42,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 04:15:42,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 04:15:42,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 04:15:42,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 04:15:42,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 04:15:42,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 04:15:42,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 04:15:42,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 04:15:42,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 04:15:42,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 04:15:42,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 04:15:42,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 04:15:42,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 04:15:42,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 04:15:42,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 04:15:42,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 04:15:42,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 04:15:42,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 04:15:42,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 04:15:42,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 04:15:42,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 04:15:42,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 04:15:42,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 04:15:42,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 04:15:42,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 04:15:42,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 04:15:42,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 04:15:42,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 04:15:42,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 04:15:42,663 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 04:15:42,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 04:15:42,664 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 04:15:42,695 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 04:15:42,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 04:15:42,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 04:15:42,696 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 04:15:42,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 04:15:42,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 04:15:42,698 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 04:15:42,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 04:15:42,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 04:15:42,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 04:15:42,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 04:15:42,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 04:15:42,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 04:15:42,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 04:15:42,699 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 04:15:42,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 04:15:42,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 04:15:42,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 04:15:42,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 04:15:42,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 04:15:42,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 04:15:42,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 04:15:42,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 04:15:42,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 04:15:42,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 04:15:42,701 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 04:15:42,701 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 04:15:42,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 04:15:42,701 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 04:15:42,702 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 [2021-11-23 04:15:42,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 04:15:42,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 04:15:42,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 04:15:42,890 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 04:15:42,890 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 04:15:42,891 INFO L432 ainManager$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 [2021-11-23 04:15:42,961 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82d7314ed/baa3cff448074067b17b084d26a5a330/FLAG09257632f [2021-11-23 04:15:43,756 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 04:15:43,757 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 [2021-11-23 04:15:43,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82d7314ed/baa3cff448074067b17b084d26a5a330/FLAG09257632f [2021-11-23 04:15:43,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82d7314ed/baa3cff448074067b17b084d26a5a330 [2021-11-23 04:15:43,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 04:15:43,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 04:15:43,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 04:15:43,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 04:15:43,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 04:15:43,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:15:43" (1/1) ... [2021-11-23 04:15:43,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61ddf970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:15:43, skipping insertion in model container [2021-11-23 04:15:43,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:15:43" (1/1) ... [2021-11-23 04:15:43,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 04:15:44,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 04:15:48,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2021-11-23 04:15:48,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2021-11-23 04:15:48,088 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 04:15:48,130 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 04:15:48,439 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2021-11-23 04:15:48,440 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2021-11-23 04:15:48,444 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 04:15:48,655 INFO L208 MainTranslator]: Completed translation [2021-11-23 04:15:48,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:15:48 WrapperNode [2021-11-23 04:15:48,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 04:15:48,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 04:15:48,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 04:15:48,658 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 04:15:48,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:15:48" (1/1) ... [2021-11-23 04:15:48,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:15:48" (1/1) ... [2021-11-23 04:15:52,319 INFO L137 Inliner]: procedures = 574, calls = 6348, calls flagged for inlining = 1439, calls inlined = 17703, statements flattened = 204189 [2021-11-23 04:15:52,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 04:15:52,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 04:15:52,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 04:15:52,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 04:15:52,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:15:48" (1/1) ... [2021-11-23 04:15:52,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:15:48" (1/1) ... [2021-11-23 04:15:53,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:15:48" (1/1) ... [2021-11-23 04:15:53,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:15:48" (1/1) ... [2021-11-23 04:15:55,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:15:48" (1/1) ... [2021-11-23 04:15:55,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:15:48" (1/1) ... [2021-11-23 04:15:56,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:15:48" (1/1) ... [2021-11-23 04:15:56,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 04:15:56,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 04:15:56,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 04:15:56,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 04:15:56,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:15:48" (1/1) ... [2021-11-23 04:15:56,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 04:15:56,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 04:15:56,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 04:15:56,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 04:15:56,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 04:15:56,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 04:15:56,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 04:15:56,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 04:15:56,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 04:15:56,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 04:15:56,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 04:15:56,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 04:15:56,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 04:15:56,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 04:15:56,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 04:15:56,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 04:15:56,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 04:15:56,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 04:15:56,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 04:15:56,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 04:15:56,719 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-23 04:15:57,794 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 04:15:57,795 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 04:17:36,001 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_2_switch_break#1: call ULTIMATE.dealloc(ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0#1.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0#1.offset);havoc ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0#1.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0#1.offset; [2021-11-23 04:17:36,007 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 04:17:36,015 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10815: #t~ret2384#1 := main_#res#1;assume { :end_inline_main } true; [2021-11-23 04:17:36,016 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_14_returnLabel#1: assume { :end_inline_ldv_entry_EMGentry_14 } true;main_#res#1 := 0; [2021-11-23 04:17:36,017 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 04:17:36,104 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 04:17:36,104 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 04:17:36,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:17:36 BoogieIcfgContainer [2021-11-23 04:17:36,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 04:17:36,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 04:17:36,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 04:17:36,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 04:17:36,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:15:43" (1/3) ... [2021-11-23 04:17:36,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb9fe80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:17:36, skipping insertion in model container [2021-11-23 04:17:36,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:15:48" (2/3) ... [2021-11-23 04:17:36,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb9fe80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:17:36, skipping insertion in model container [2021-11-23 04:17:36,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:17:36" (3/3) ... [2021-11-23 04:17:36,137 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-23 04:17:36,141 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 04:17:36,141 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2021-11-23 04:17:36,265 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 04:17:36,279 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 04:17:36,279 INFO L340 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2021-11-23 04:17:36,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 34689 states, 34648 states have (on average 1.2779381205264373) internal successors, (44278), 34688 states have internal predecessors, (44278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:17:36,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-23 04:17:36,632 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:17:36,633 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] [2021-11-23 04:17:36,634 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)] === [2021-11-23 04:17:36,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:17:36,638 INFO L85 PathProgramCache]: Analyzing trace with hash 2021892352, now seen corresponding path program 1 times [2021-11-23 04:17:36,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:17:36,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537096821] [2021-11-23 04:17:36,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:17:36,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:17:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:17:37,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:17:37,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:17:37,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537096821] [2021-11-23 04:17:37,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537096821] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:17:37,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:17:37,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 04:17:37,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616777168] [2021-11-23 04:17:37,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:17:37,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:17:37,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:17:37,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:17:37,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:17:37,960 INFO L87 Difference]: Start difference. First operand has 34689 states, 34648 states have (on average 1.2779381205264373) internal successors, (44278), 34688 states have internal predecessors, (44278), 0 states have call successors, (0), 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 22.333333333333332) internal successors, (67), 2 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) [2021-11-23 04:17:39,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:17:39,530 INFO L93 Difference]: Finished difference Result 69339 states and 88507 transitions. [2021-11-23 04:17:39,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:17:39,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 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 [2021-11-23 04:17:39,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:17:39,681 INFO L225 Difference]: With dead ends: 69339 [2021-11-23 04:17:39,681 INFO L226 Difference]: Without dead ends: 34289 [2021-11-23 04:17:39,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:17:39,749 INFO L933 BasicCegarLoop]: 42203 mSDtfsCounter, 42183 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42183 SdHoareTripleChecker+Valid, 42203 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 04:17:39,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42183 Valid, 42203 Invalid, 83 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 04:17:39,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34289 states. [2021-11-23 04:17:40,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34289 to 34289. [2021-11-23 04:17:40,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34289 states, 34248 states have (on average 1.2151658491006774) internal successors, (41617), 34288 states have internal predecessors, (41617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:17:40,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34289 states to 34289 states and 41617 transitions. [2021-11-23 04:17:40,816 INFO L78 Accepts]: Start accepts. Automaton has 34289 states and 41617 transitions. Word has length 67 [2021-11-23 04:17:40,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:17:40,817 INFO L470 AbstractCegarLoop]: Abstraction has 34289 states and 41617 transitions. [2021-11-23 04:17:40,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 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) [2021-11-23 04:17:40,818 INFO L276 IsEmpty]: Start isEmpty. Operand 34289 states and 41617 transitions. [2021-11-23 04:17:40,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-23 04:17:40,820 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:17:40,821 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] [2021-11-23 04:17:40,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 04:17:40,821 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)] === [2021-11-23 04:17:40,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:17:40,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1745967947, now seen corresponding path program 1 times [2021-11-23 04:17:40,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:17:40,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032693729] [2021-11-23 04:17:40,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:17:40,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:17:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:17:41,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:17:41,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:17:41,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032693729] [2021-11-23 04:17:41,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032693729] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:17:41,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:17:41,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:17:41,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333650801] [2021-11-23 04:17:41,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:17:41,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:17:41,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:17:41,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:17:41,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:17:41,284 INFO L87 Difference]: Start difference. First operand 34289 states and 41617 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) [2021-11-23 04:17:42,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:17:42,766 INFO L93 Difference]: Finished difference Result 68549 states and 83204 transitions. [2021-11-23 04:17:42,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:17:42,766 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 [2021-11-23 04:17:42,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:17:42,846 INFO L225 Difference]: With dead ends: 68549 [2021-11-23 04:17:42,846 INFO L226 Difference]: Without dead ends: 34289 [2021-11-23 04:17:42,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:17:42,921 INFO L933 BasicCegarLoop]: 41494 mSDtfsCounter, 83087 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83087 SdHoareTripleChecker+Valid, 41494 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 04:17:42,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83087 Valid, 41494 Invalid, 123 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 04:17:43,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34289 states. [2021-11-23 04:17:43,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34289 to 34289. [2021-11-23 04:17:43,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34289 states, 34248 states have (on average 1.2139686989021257) internal successors, (41576), 34288 states have internal predecessors, (41576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:17:44,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34289 states to 34289 states and 41576 transitions. [2021-11-23 04:17:44,019 INFO L78 Accepts]: Start accepts. Automaton has 34289 states and 41576 transitions. Word has length 68 [2021-11-23 04:17:44,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:17:44,021 INFO L470 AbstractCegarLoop]: Abstraction has 34289 states and 41576 transitions. [2021-11-23 04:17:44,025 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) [2021-11-23 04:17:44,025 INFO L276 IsEmpty]: Start isEmpty. Operand 34289 states and 41576 transitions. [2021-11-23 04:17:44,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 04:17:44,026 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:17:44,027 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] [2021-11-23 04:17:44,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 04:17:44,027 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)] === [2021-11-23 04:17:44,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:17:44,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1709596027, now seen corresponding path program 1 times [2021-11-23 04:17:44,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:17:44,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437321492] [2021-11-23 04:17:44,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:17:44,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:17:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:17:44,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:17:44,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:17:44,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437321492] [2021-11-23 04:17:44,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437321492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:17:44,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:17:44,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:17:44,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099855301] [2021-11-23 04:17:44,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:17:44,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:17:44,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:17:44,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:17:44,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:17:44,389 INFO L87 Difference]: Start difference. First operand 34289 states and 41576 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) [2021-11-23 04:17:45,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:17:45,800 INFO L93 Difference]: Finished difference Result 68549 states and 83122 transitions. [2021-11-23 04:17:45,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:17:45,801 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 [2021-11-23 04:17:45,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:17:45,891 INFO L225 Difference]: With dead ends: 68549 [2021-11-23 04:17:45,891 INFO L226 Difference]: Without dead ends: 34289 [2021-11-23 04:17:45,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:17:45,937 INFO L933 BasicCegarLoop]: 41453 mSDtfsCounter, 83004 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83004 SdHoareTripleChecker+Valid, 41453 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 04:17:45,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83004 Valid, 41453 Invalid, 123 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 04:17:45,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34289 states. [2021-11-23 04:17:46,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34289 to 34289. [2021-11-23 04:17:46,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34289 states, 34248 states have (on average 1.212771548703574) internal successors, (41535), 34288 states have internal predecessors, (41535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:17:46,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34289 states to 34289 states and 41535 transitions. [2021-11-23 04:17:46,964 INFO L78 Accepts]: Start accepts. Automaton has 34289 states and 41535 transitions. Word has length 69 [2021-11-23 04:17:46,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:17:46,965 INFO L470 AbstractCegarLoop]: Abstraction has 34289 states and 41535 transitions. [2021-11-23 04:17:46,965 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) [2021-11-23 04:17:46,965 INFO L276 IsEmpty]: Start isEmpty. Operand 34289 states and 41535 transitions. [2021-11-23 04:17:46,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-23 04:17:46,966 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:17:46,967 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] [2021-11-23 04:17:46,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 04:17:46,967 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)] === [2021-11-23 04:17:46,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:17:46,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1458045776, now seen corresponding path program 1 times [2021-11-23 04:17:46,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:17:46,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838434763] [2021-11-23 04:17:46,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:17:46,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:17:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:17:47,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:17:47,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:17:47,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838434763] [2021-11-23 04:17:47,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838434763] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:17:47,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:17:47,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:17:47,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934440408] [2021-11-23 04:17:47,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:17:47,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:17:47,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:17:47,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:17:47,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:17:47,478 INFO L87 Difference]: Start difference. First operand 34289 states and 41535 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) [2021-11-23 04:17:48,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:17:48,965 INFO L93 Difference]: Finished difference Result 68549 states and 83040 transitions. [2021-11-23 04:17:48,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:17:48,966 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 [2021-11-23 04:17:48,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:17:49,045 INFO L225 Difference]: With dead ends: 68549 [2021-11-23 04:17:49,045 INFO L226 Difference]: Without dead ends: 34289 [2021-11-23 04:17:49,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:17:49,098 INFO L933 BasicCegarLoop]: 41412 mSDtfsCounter, 82921 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82921 SdHoareTripleChecker+Valid, 41412 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 04:17:49,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82921 Valid, 41412 Invalid, 123 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 04:17:49,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34289 states. [2021-11-23 04:17:50,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34289 to 34289. [2021-11-23 04:17:50,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34289 states, 34248 states have (on average 1.2115743985050222) internal successors, (41494), 34288 states have internal predecessors, (41494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:17:50,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34289 states to 34289 states and 41494 transitions. [2021-11-23 04:17:50,214 INFO L78 Accepts]: Start accepts. Automaton has 34289 states and 41494 transitions. Word has length 70 [2021-11-23 04:17:50,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:17:50,215 INFO L470 AbstractCegarLoop]: Abstraction has 34289 states and 41494 transitions. [2021-11-23 04:17:50,216 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) [2021-11-23 04:17:50,216 INFO L276 IsEmpty]: Start isEmpty. Operand 34289 states and 41494 transitions. [2021-11-23 04:17:50,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 04:17:50,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:17:50,217 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] [2021-11-23 04:17:50,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 04:17:50,218 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)] === [2021-11-23 04:17:50,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:17:50,218 INFO L85 PathProgramCache]: Analyzing trace with hash -2044895754, now seen corresponding path program 1 times [2021-11-23 04:17:50,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:17:50,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078111678] [2021-11-23 04:17:50,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:17:50,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:17:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:17:50,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:17:50,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:17:50,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078111678] [2021-11-23 04:17:50,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078111678] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:17:50,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:17:50,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:17:50,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969842668] [2021-11-23 04:17:50,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:17:50,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:17:50,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:17:50,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:17:50,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:17:50,521 INFO L87 Difference]: Start difference. First operand 34289 states and 41494 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) [2021-11-23 04:17:52,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:17:52,521 INFO L93 Difference]: Finished difference Result 68549 states and 82958 transitions. [2021-11-23 04:17:52,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:17:52,531 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 [2021-11-23 04:17:52,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:17:52,674 INFO L225 Difference]: With dead ends: 68549 [2021-11-23 04:17:52,674 INFO L226 Difference]: Without dead ends: 34289 [2021-11-23 04:17:52,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:17:52,765 INFO L933 BasicCegarLoop]: 41371 mSDtfsCounter, 82838 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82838 SdHoareTripleChecker+Valid, 41371 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 04:17:52,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82838 Valid, 41371 Invalid, 123 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 04:17:52,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34289 states. [2021-11-23 04:17:54,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34289 to 34289. [2021-11-23 04:17:54,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34289 states, 34248 states have (on average 1.2103772483064705) internal successors, (41453), 34288 states have internal predecessors, (41453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:17:54,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34289 states to 34289 states and 41453 transitions. [2021-11-23 04:17:54,122 INFO L78 Accepts]: Start accepts. Automaton has 34289 states and 41453 transitions. Word has length 71 [2021-11-23 04:17:54,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:17:54,122 INFO L470 AbstractCegarLoop]: Abstraction has 34289 states and 41453 transitions. [2021-11-23 04:17:54,125 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) [2021-11-23 04:17:54,125 INFO L276 IsEmpty]: Start isEmpty. Operand 34289 states and 41453 transitions. [2021-11-23 04:17:54,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-23 04:17:54,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:17:54,130 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] [2021-11-23 04:17:54,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 04:17:54,131 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)] === [2021-11-23 04:17:54,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:17:54,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1033215467, now seen corresponding path program 1 times [2021-11-23 04:17:54,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:17:54,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684295825] [2021-11-23 04:17:54,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:17:54,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:17:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:17:54,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:17:54,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:17:54,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684295825] [2021-11-23 04:17:54,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684295825] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:17:54,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:17:54,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:17:54,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857878281] [2021-11-23 04:17:54,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:17:54,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:17:54,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:17:54,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:17:54,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:17:54,435 INFO L87 Difference]: Start difference. First operand 34289 states and 41453 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) [2021-11-23 04:17:56,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:17:56,491 INFO L93 Difference]: Finished difference Result 68549 states and 82876 transitions. [2021-11-23 04:17:56,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:17:56,491 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 [2021-11-23 04:17:56,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:17:56,569 INFO L225 Difference]: With dead ends: 68549 [2021-11-23 04:17:56,569 INFO L226 Difference]: Without dead ends: 34289 [2021-11-23 04:17:56,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:17:56,628 INFO L933 BasicCegarLoop]: 41330 mSDtfsCounter, 82755 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82755 SdHoareTripleChecker+Valid, 41330 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 04:17:56,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82755 Valid, 41330 Invalid, 123 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 04:17:56,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34289 states. [2021-11-23 04:17:57,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34289 to 34289. [2021-11-23 04:17:57,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34289 states, 34248 states have (on average 1.2091800981079188) internal successors, (41412), 34288 states have internal predecessors, (41412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:17:57,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34289 states to 34289 states and 41412 transitions. [2021-11-23 04:17:57,983 INFO L78 Accepts]: Start accepts. Automaton has 34289 states and 41412 transitions. Word has length 72 [2021-11-23 04:17:57,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:17:57,983 INFO L470 AbstractCegarLoop]: Abstraction has 34289 states and 41412 transitions. [2021-11-23 04:17:57,983 INFO L471 AbstractCegarLoop]: INTERPOLANT 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) [2021-11-23 04:17:57,985 INFO L276 IsEmpty]: Start isEmpty. Operand 34289 states and 41412 transitions. [2021-11-23 04:17:57,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-23 04:17:57,991 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:17:57,991 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] [2021-11-23 04:17:57,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 04:17:57,995 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)] === [2021-11-23 04:17:57,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:17:57,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1965531761, now seen corresponding path program 1 times [2021-11-23 04:17:57,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:17:57,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182609462] [2021-11-23 04:17:57,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:17:57,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:17:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:17:58,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:17:58,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:17:58,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182609462] [2021-11-23 04:17:58,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182609462] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:17:58,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:17:58,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:17:58,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575715916] [2021-11-23 04:17:58,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:17:58,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:17:58,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:17:58,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:17:58,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:17:58,282 INFO L87 Difference]: Start difference. First operand 34289 states and 41412 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:18:00,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:18:00,441 INFO L93 Difference]: Finished difference Result 68549 states and 82794 transitions. [2021-11-23 04:18:00,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:18:00,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2021-11-23 04:18:00,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:18:00,500 INFO L225 Difference]: With dead ends: 68549 [2021-11-23 04:18:00,501 INFO L226 Difference]: Without dead ends: 34289 [2021-11-23 04:18:00,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:18:00,542 INFO L933 BasicCegarLoop]: 41289 mSDtfsCounter, 82672 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82672 SdHoareTripleChecker+Valid, 41289 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 04:18:00,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82672 Valid, 41289 Invalid, 123 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 04:18:00,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34289 states. [2021-11-23 04:18:01,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34289 to 34289. [2021-11-23 04:18:01,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34289 states, 34248 states have (on average 1.2079829479093669) internal successors, (41371), 34288 states have internal predecessors, (41371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:18:01,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34289 states to 34289 states and 41371 transitions. [2021-11-23 04:18:01,886 INFO L78 Accepts]: Start accepts. Automaton has 34289 states and 41371 transitions. Word has length 73 [2021-11-23 04:18:01,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:18:01,886 INFO L470 AbstractCegarLoop]: Abstraction has 34289 states and 41371 transitions. [2021-11-23 04:18:01,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:18:01,887 INFO L276 IsEmpty]: Start isEmpty. Operand 34289 states and 41371 transitions. [2021-11-23 04:18:01,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 04:18:01,888 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:18:01,888 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] [2021-11-23 04:18:01,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 04:18:01,888 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 38 more)] === [2021-11-23 04:18:01,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:18:01,889 INFO L85 PathProgramCache]: Analyzing trace with hash 802714758, now seen corresponding path program 1 times [2021-11-23 04:18:01,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:18:01,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164067211] [2021-11-23 04:18:01,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:18:01,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:18:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:18:02,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:18:02,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:18:02,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164067211] [2021-11-23 04:18:02,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164067211] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:18:02,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:18:02,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:18:02,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991136832] [2021-11-23 04:18:02,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:18:02,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:18:02,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:18:02,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:18:02,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:18:02,195 INFO L87 Difference]: Start difference. First operand 34289 states and 41371 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:18:04,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:18:04,358 INFO L93 Difference]: Finished difference Result 68549 states and 82712 transitions. [2021-11-23 04:18:04,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:18:04,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2021-11-23 04:18:04,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:18:04,405 INFO L225 Difference]: With dead ends: 68549 [2021-11-23 04:18:04,405 INFO L226 Difference]: Without dead ends: 34289 [2021-11-23 04:18:04,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:18:04,445 INFO L933 BasicCegarLoop]: 41248 mSDtfsCounter, 82589 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82589 SdHoareTripleChecker+Valid, 41248 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 04:18:04,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82589 Valid, 41248 Invalid, 123 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 04:18:04,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34289 states. [2021-11-23 04:18:05,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34289 to 34289. [2021-11-23 04:18:05,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34289 states, 34248 states have (on average 1.2067857977108152) internal successors, (41330), 34288 states have internal predecessors, (41330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:18:05,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34289 states to 34289 states and 41330 transitions. [2021-11-23 04:18:05,864 INFO L78 Accepts]: Start accepts. Automaton has 34289 states and 41330 transitions. Word has length 74 [2021-11-23 04:18:05,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:18:05,864 INFO L470 AbstractCegarLoop]: Abstraction has 34289 states and 41330 transitions. [2021-11-23 04:18:05,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:18:05,865 INFO L276 IsEmpty]: Start isEmpty. Operand 34289 states and 41330 transitions. [2021-11-23 04:18:05,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-23 04:18:05,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:18:05,866 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] [2021-11-23 04:18:05,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 04:18:05,866 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 38 more)] === [2021-11-23 04:18:05,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:18:05,866 INFO L85 PathProgramCache]: Analyzing trace with hash -884725012, now seen corresponding path program 1 times [2021-11-23 04:18:05,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:18:05,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530394999] [2021-11-23 04:18:05,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:18:05,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:18:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:18:06,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:18:06,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:18:06,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530394999] [2021-11-23 04:18:06,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530394999] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:18:06,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:18:06,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:18:06,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744098031] [2021-11-23 04:18:06,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:18:06,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:18:06,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:18:06,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:18:06,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:18:06,130 INFO L87 Difference]: Start difference. First operand 34289 states and 41330 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:18:08,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:18:08,376 INFO L93 Difference]: Finished difference Result 68549 states and 82630 transitions. [2021-11-23 04:18:08,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:18:08,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2021-11-23 04:18:08,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:18:08,433 INFO L225 Difference]: With dead ends: 68549 [2021-11-23 04:18:08,433 INFO L226 Difference]: Without dead ends: 34289 [2021-11-23 04:18:08,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:18:08,484 INFO L933 BasicCegarLoop]: 41207 mSDtfsCounter, 82506 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82506 SdHoareTripleChecker+Valid, 41207 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 04:18:08,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82506 Valid, 41207 Invalid, 123 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 04:18:08,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34289 states. [2021-11-23 04:18:10,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34289 to 34289. [2021-11-23 04:18:10,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34289 states, 34248 states have (on average 1.2055886475122635) internal successors, (41289), 34288 states have internal predecessors, (41289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:18:10,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34289 states to 34289 states and 41289 transitions. [2021-11-23 04:18:10,109 INFO L78 Accepts]: Start accepts. Automaton has 34289 states and 41289 transitions. Word has length 75 [2021-11-23 04:18:10,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:18:10,110 INFO L470 AbstractCegarLoop]: Abstraction has 34289 states and 41289 transitions. [2021-11-23 04:18:10,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:18:10,110 INFO L276 IsEmpty]: Start isEmpty. Operand 34289 states and 41289 transitions. [2021-11-23 04:18:10,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-23 04:18:10,112 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:18:10,112 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] [2021-11-23 04:18:10,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 04:18:10,112 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 38 more)] === [2021-11-23 04:18:10,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:18:10,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1655601375, now seen corresponding path program 1 times [2021-11-23 04:18:10,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:18:10,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913163677] [2021-11-23 04:18:10,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:18:10,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:18:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:18:10,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:18:10,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:18:10,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913163677] [2021-11-23 04:18:10,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913163677] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:18:10,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:18:10,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:18:10,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055685014] [2021-11-23 04:18:10,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:18:10,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:18:10,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:18:10,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:18:10,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:18:10,402 INFO L87 Difference]: Start difference. First operand 34289 states and 41289 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)