./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.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 97d835cf94d1b164c94e454298c9901161d3451d2aec7fccfb9f6ea65c4976ed --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 18:16:12,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 18:16:12,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 18:16:12,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 18:16:12,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 18:16:12,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 18:16:12,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 18:16:12,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 18:16:12,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 18:16:12,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 18:16:12,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 18:16:12,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 18:16:12,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 18:16:12,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 18:16:12,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 18:16:12,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 18:16:12,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 18:16:12,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 18:16:12,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 18:16:12,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 18:16:12,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 18:16:12,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 18:16:12,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 18:16:12,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 18:16:12,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 18:16:12,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 18:16:12,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 18:16:12,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 18:16:12,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 18:16:12,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 18:16:12,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 18:16:12,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 18:16:12,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 18:16:12,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 18:16:12,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 18:16:12,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 18:16:12,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 18:16:12,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 18:16:12,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 18:16:12,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 18:16:12,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 18:16:12,584 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 18:16:12,598 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 18:16:12,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 18:16:12,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 18:16:12,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 18:16:12,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 18:16:12,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 18:16:12,600 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 18:16:12,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 18:16:12,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 18:16:12,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 18:16:12,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 18:16:12,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 18:16:12,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 18:16:12,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 18:16:12,601 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 18:16:12,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 18:16:12,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 18:16:12,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 18:16:12,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 18:16:12,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:16:12,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 18:16:12,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 18:16:12,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 18:16:12,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 18:16:12,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 18:16:12,603 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 18:16:12,603 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 18:16:12,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 18:16:12,603 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 18:16:12,603 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97d835cf94d1b164c94e454298c9901161d3451d2aec7fccfb9f6ea65c4976ed [2021-11-06 18:16:12,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 18:16:12,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 18:16:12,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 18:16:12,767 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 18:16:12,767 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 18:16:12,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2021-11-06 18:16:12,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c95c0559d/257bff3001ae4e5bb5ea4c3888dfe3a4/FLAG160022477 [2021-11-06 18:16:13,440 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 18:16:13,441 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2021-11-06 18:16:13,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c95c0559d/257bff3001ae4e5bb5ea4c3888dfe3a4/FLAG160022477 [2021-11-06 18:16:13,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c95c0559d/257bff3001ae4e5bb5ea4c3888dfe3a4 [2021-11-06 18:16:13,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 18:16:13,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 18:16:13,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 18:16:13,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 18:16:13,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 18:16:13,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:16:13" (1/1) ... [2021-11-06 18:16:13,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32aa8d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:13, skipping insertion in model container [2021-11-06 18:16:13,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:16:13" (1/1) ... [2021-11-06 18:16:13,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 18:16:13,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 18:16:15,213 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327451,327464] [2021-11-06 18:16:15,217 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327596,327609] [2021-11-06 18:16:15,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:16:15,296 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 18:16:15,518 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327451,327464] [2021-11-06 18:16:15,519 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327596,327609] [2021-11-06 18:16:15,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:16:15,687 INFO L208 MainTranslator]: Completed translation [2021-11-06 18:16:15,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:15 WrapperNode [2021-11-06 18:16:15,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 18:16:15,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 18:16:15,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 18:16:15,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 18:16:15,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:15" (1/1) ... [2021-11-06 18:16:15,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:15" (1/1) ... [2021-11-06 18:16:16,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 18:16:16,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 18:16:16,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 18:16:16,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 18:16:16,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:15" (1/1) ... [2021-11-06 18:16:16,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:15" (1/1) ... [2021-11-06 18:16:16,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:15" (1/1) ... [2021-11-06 18:16:16,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:15" (1/1) ... [2021-11-06 18:16:16,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:15" (1/1) ... [2021-11-06 18:16:16,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:15" (1/1) ... [2021-11-06 18:16:16,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:15" (1/1) ... [2021-11-06 18:16:16,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 18:16:16,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 18:16:16,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 18:16:16,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 18:16:16,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:15" (1/1) ... [2021-11-06 18:16:16,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:16:16,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:16:16,922 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) [2021-11-06 18:16:16,947 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 [2021-11-06 18:16:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 18:16:16,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 18:16:16,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 18:16:16,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 18:16:16,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 18:16:16,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 18:16:16,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 18:16:16,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 18:16:16,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 18:16:16,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 18:16:16,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 18:16:16,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 18:16:16,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 18:16:16,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 18:16:16,963 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-06 18:16:16,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 18:17:04,683 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 18:17:04,684 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 18:17:04,684 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 18:17:04,684 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 18:17:04,704 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 18:17:04,705 INFO L299 CfgBuilder]: Removed 2955 assume(true) statements. [2021-11-06 18:17:04,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:17:04 BoogieIcfgContainer [2021-11-06 18:17:04,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 18:17:04,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 18:17:04,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 18:17:04,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 18:17:04,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:16:13" (1/3) ... [2021-11-06 18:17:04,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a6581c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:17:04, skipping insertion in model container [2021-11-06 18:17:04,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:15" (2/3) ... [2021-11-06 18:17:04,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a6581c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:17:04, skipping insertion in model container [2021-11-06 18:17:04,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:17:04" (3/3) ... [2021-11-06 18:17:04,718 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2021-11-06 18:17:04,723 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 18:17:04,723 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2021-11-06 18:17:04,774 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 18:17:04,778 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 [2021-11-06 18:17:04,779 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-11-06 18:17:04,835 INFO L276 IsEmpty]: Start isEmpty. Operand has 3464 states, 3437 states have (on average 1.441664242071574) internal successors, (4955), 3463 states have internal predecessors, (4955), 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) [2021-11-06 18:17:04,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-06 18:17:04,854 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:17:04,855 INFO L513 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] [2021-11-06 18:17:04,855 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-06 18:17:04,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:17:04,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1108495404, now seen corresponding path program 1 times [2021-11-06 18:17:04,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:17:04,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40100186] [2021-11-06 18:17:04,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:17:04,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:17:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:17:05,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:17:05,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:17:05,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40100186] [2021-11-06 18:17:05,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40100186] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:17:05,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:17:05,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:17:05,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164491827] [2021-11-06 18:17:05,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:17:05,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:17:05,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:17:05,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:17:05,711 INFO L87 Difference]: Start difference. First operand has 3464 states, 3437 states have (on average 1.441664242071574) internal successors, (4955), 3463 states have internal predecessors, (4955), 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 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-11-06 18:17:08,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:17:08,180 INFO L93 Difference]: Finished difference Result 10071 states and 14431 transitions. [2021-11-06 18:17:08,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:17:08,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2021-11-06 18:17:08,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:17:08,221 INFO L225 Difference]: With dead ends: 10071 [2021-11-06 18:17:08,221 INFO L226 Difference]: Without dead ends: 6441 [2021-11-06 18:17:08,232 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:17:08,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6441 states. [2021-11-06 18:17:08,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6441 to 6385. [2021-11-06 18:17:08,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6385 states, 6358 states have (on average 1.4257628184963824) internal successors, (9065), 6384 states have internal predecessors, (9065), 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) [2021-11-06 18:17:08,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6385 states to 6385 states and 9065 transitions. [2021-11-06 18:17:08,416 INFO L78 Accepts]: Start accepts. Automaton has 6385 states and 9065 transitions. Word has length 59 [2021-11-06 18:17:08,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:17:08,418 INFO L470 AbstractCegarLoop]: Abstraction has 6385 states and 9065 transitions. [2021-11-06 18:17:08,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-11-06 18:17:08,421 INFO L276 IsEmpty]: Start isEmpty. Operand 6385 states and 9065 transitions. [2021-11-06 18:17:08,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-06 18:17:08,425 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:17:08,425 INFO L513 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] [2021-11-06 18:17:08,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 18:17:08,426 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-06 18:17:08,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:17:08,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1975101913, now seen corresponding path program 1 times [2021-11-06 18:17:08,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:17:08,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883511418] [2021-11-06 18:17:08,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:17:08,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:17:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:17:08,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:17:08,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:17:08,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883511418] [2021-11-06 18:17:08,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883511418] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:17:08,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:17:08,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:17:08,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788696947] [2021-11-06 18:17:08,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:17:08,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:17:08,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:17:08,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:17:08,781 INFO L87 Difference]: Start difference. First operand 6385 states and 9065 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:17:11,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:17:11,406 INFO L93 Difference]: Finished difference Result 13881 states and 19724 transitions. [2021-11-06 18:17:11,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:17:11,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-06 18:17:11,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:17:11,432 INFO L225 Difference]: With dead ends: 13881 [2021-11-06 18:17:11,432 INFO L226 Difference]: Without dead ends: 7596 [2021-11-06 18:17:11,444 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:17:11,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7596 states. [2021-11-06 18:17:11,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7596 to 7572. [2021-11-06 18:17:11,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7572 states, 7545 states have (on average 1.4222664015904574) internal successors, (10731), 7571 states have internal predecessors, (10731), 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) [2021-11-06 18:17:11,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7572 states to 7572 states and 10731 transitions. [2021-11-06 18:17:11,600 INFO L78 Accepts]: Start accepts. Automaton has 7572 states and 10731 transitions. Word has length 67 [2021-11-06 18:17:11,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:17:11,601 INFO L470 AbstractCegarLoop]: Abstraction has 7572 states and 10731 transitions. [2021-11-06 18:17:11,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:17:11,601 INFO L276 IsEmpty]: Start isEmpty. Operand 7572 states and 10731 transitions. [2021-11-06 18:17:11,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-06 18:17:11,764 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:17:11,764 INFO L513 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] [2021-11-06 18:17:11,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 18:17:11,764 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-06 18:17:11,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:17:11,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1052806731, now seen corresponding path program 1 times [2021-11-06 18:17:11,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:17:11,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750625831] [2021-11-06 18:17:11,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:17:11,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:17:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:17:12,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:17:12,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:17:12,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750625831] [2021-11-06 18:17:12,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750625831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:17:12,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:17:12,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:17:12,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555726847] [2021-11-06 18:17:12,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:17:12,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:17:12,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:17:12,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:17:12,064 INFO L87 Difference]: Start difference. First operand 7572 states and 10731 transitions. Second operand has 3 states, 3 states have (on average 23.0) 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) [2021-11-06 18:17:14,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:17:14,950 INFO L93 Difference]: Finished difference Result 20712 states and 29417 transitions. [2021-11-06 18:17:14,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:17:14,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) 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 [2021-11-06 18:17:14,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:17:15,003 INFO L225 Difference]: With dead ends: 20712 [2021-11-06 18:17:15,003 INFO L226 Difference]: Without dead ends: 13240 [2021-11-06 18:17:15,020 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:17:15,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13240 states. [2021-11-06 18:17:15,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13240 to 13070. [2021-11-06 18:17:15,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13070 states, 13043 states have (on average 1.4265889749290808) internal successors, (18607), 13069 states have internal predecessors, (18607), 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) [2021-11-06 18:17:15,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13070 states to 13070 states and 18607 transitions. [2021-11-06 18:17:15,304 INFO L78 Accepts]: Start accepts. Automaton has 13070 states and 18607 transitions. Word has length 69 [2021-11-06 18:17:15,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:17:15,305 INFO L470 AbstractCegarLoop]: Abstraction has 13070 states and 18607 transitions. [2021-11-06 18:17:15,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) 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) [2021-11-06 18:17:15,305 INFO L276 IsEmpty]: Start isEmpty. Operand 13070 states and 18607 transitions. [2021-11-06 18:17:15,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-06 18:17:15,307 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:17:15,308 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:17:15,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 18:17:15,308 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-06 18:17:15,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:17:15,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1285430771, now seen corresponding path program 1 times [2021-11-06 18:17:15,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:17:15,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559803420] [2021-11-06 18:17:15,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:17:15,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:17:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:17:15,605 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:17:15,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:17:15,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559803420] [2021-11-06 18:17:15,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559803420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:17:15,606 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:17:15,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:17:15,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301642714] [2021-11-06 18:17:15,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:17:15,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:17:15,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:17:15,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:17:15,607 INFO L87 Difference]: Start difference. First operand 13070 states and 18607 transitions. Second operand has 3 states, 3 states have (on average 24.0) 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) [2021-11-06 18:17:18,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:17:18,248 INFO L93 Difference]: Finished difference Result 38962 states and 55549 transitions. [2021-11-06 18:17:18,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:17:18,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) 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 [2021-11-06 18:17:18,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:17:18,307 INFO L225 Difference]: With dead ends: 38962 [2021-11-06 18:17:18,308 INFO L226 Difference]: Without dead ends: 25992 [2021-11-06 18:17:18,329 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:17:18,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25992 states. [2021-11-06 18:17:18,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25992 to 25890. [2021-11-06 18:17:18,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25890 states, 25863 states have (on average 1.428875227158489) internal successors, (36955), 25889 states have internal predecessors, (36955), 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) [2021-11-06 18:17:18,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25890 states to 25890 states and 36955 transitions. [2021-11-06 18:17:18,777 INFO L78 Accepts]: Start accepts. Automaton has 25890 states and 36955 transitions. Word has length 72 [2021-11-06 18:17:18,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:17:18,777 INFO L470 AbstractCegarLoop]: Abstraction has 25890 states and 36955 transitions. [2021-11-06 18:17:18,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) 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) [2021-11-06 18:17:18,778 INFO L276 IsEmpty]: Start isEmpty. Operand 25890 states and 36955 transitions. [2021-11-06 18:17:18,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-06 18:17:18,780 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:17:18,780 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:17:18,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 18:17:18,780 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-06 18:17:18,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:17:18,781 INFO L85 PathProgramCache]: Analyzing trace with hash -255720582, now seen corresponding path program 1 times [2021-11-06 18:17:18,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:17:18,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326089791] [2021-11-06 18:17:18,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:17:18,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:17:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:17:19,049 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:17:19,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:17:19,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326089791] [2021-11-06 18:17:19,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326089791] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:17:19,049 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:17:19,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:17:19,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702539358] [2021-11-06 18:17:19,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:17:19,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:17:19,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:17:19,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:17:19,050 INFO L87 Difference]: Start difference. First operand 25890 states and 36955 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2021-11-06 18:17:22,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:17:22,001 INFO L93 Difference]: Finished difference Result 77390 states and 110561 transitions. [2021-11-06 18:17:22,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:17:22,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2021-11-06 18:17:22,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:17:22,146 INFO L225 Difference]: With dead ends: 77390 [2021-11-06 18:17:22,147 INFO L226 Difference]: Without dead ends: 51600 [2021-11-06 18:17:22,201 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:17:22,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51600 states. [2021-11-06 18:17:23,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51600 to 51482. [2021-11-06 18:17:23,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51482 states, 51455 states have (on average 1.4299679331454669) internal successors, (73579), 51481 states have internal predecessors, (73579), 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) [2021-11-06 18:17:23,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51482 states to 51482 states and 73579 transitions. [2021-11-06 18:17:23,301 INFO L78 Accepts]: Start accepts. Automaton has 51482 states and 73579 transitions. Word has length 82 [2021-11-06 18:17:23,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:17:23,301 INFO L470 AbstractCegarLoop]: Abstraction has 51482 states and 73579 transitions. [2021-11-06 18:17:23,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2021-11-06 18:17:23,302 INFO L276 IsEmpty]: Start isEmpty. Operand 51482 states and 73579 transitions. [2021-11-06 18:17:23,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-06 18:17:23,303 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:17:23,303 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:17:23,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 18:17:23,304 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-06 18:17:23,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:17:23,304 INFO L85 PathProgramCache]: Analyzing trace with hash 250718301, now seen corresponding path program 1 times [2021-11-06 18:17:23,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:17:23,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909062363] [2021-11-06 18:17:23,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:17:23,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:17:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:17:23,580 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-06 18:17:23,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:17:23,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909062363] [2021-11-06 18:17:23,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909062363] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:17:23,580 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:17:23,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:17:23,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786936973] [2021-11-06 18:17:23,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:17:23,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:17:23,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:17:23,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:17:23,581 INFO L87 Difference]: Start difference. First operand 51482 states and 73579 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-11-06 18:17:26,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:17:26,891 INFO L93 Difference]: Finished difference Result 102909 states and 147100 transitions. [2021-11-06 18:17:26,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:17:26,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 84 [2021-11-06 18:17:26,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:17:27,153 INFO L225 Difference]: With dead ends: 102909 [2021-11-06 18:17:27,153 INFO L226 Difference]: Without dead ends: 51527 [2021-11-06 18:17:27,253 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:17:27,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51527 states. [2021-11-06 18:17:28,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51527 to 51527. [2021-11-06 18:17:28,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51527 states, 51500 states have (on average 1.4296893203883496) internal successors, (73629), 51526 states have internal predecessors, (73629), 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) [2021-11-06 18:17:28,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51527 states to 51527 states and 73629 transitions. [2021-11-06 18:17:28,331 INFO L78 Accepts]: Start accepts. Automaton has 51527 states and 73629 transitions. Word has length 84 [2021-11-06 18:17:28,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:17:28,332 INFO L470 AbstractCegarLoop]: Abstraction has 51527 states and 73629 transitions. [2021-11-06 18:17:28,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-11-06 18:17:28,333 INFO L276 IsEmpty]: Start isEmpty. Operand 51527 states and 73629 transitions. [2021-11-06 18:17:28,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-06 18:17:28,339 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:17:28,339 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:17:28,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 18:17:28,340 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-06 18:17:28,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:17:28,340 INFO L85 PathProgramCache]: Analyzing trace with hash -186016021, now seen corresponding path program 1 times [2021-11-06 18:17:28,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:17:28,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919345621] [2021-11-06 18:17:28,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:17:28,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:17:28,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:17:28,727 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-06 18:17:28,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:17:28,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919345621] [2021-11-06 18:17:28,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919345621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:17:28,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:17:28,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:17:28,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749096164] [2021-11-06 18:17:28,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:17:28,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:17:28,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:17:28,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:17:28,729 INFO L87 Difference]: Start difference. First operand 51527 states and 73629 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2021-11-06 18:17:32,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:17:32,388 INFO L93 Difference]: Finished difference Result 151875 states and 217699 transitions. [2021-11-06 18:17:32,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:17:32,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 116 [2021-11-06 18:17:32,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:17:32,606 INFO L225 Difference]: With dead ends: 151875 [2021-11-06 18:17:32,606 INFO L226 Difference]: Without dead ends: 100493 [2021-11-06 18:17:32,670 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:17:32,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100493 states. [2021-11-06 18:17:34,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100493 to 100439. [2021-11-06 18:17:34,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100439 states, 100412 states have (on average 1.435177070469665) internal successors, (144109), 100438 states have internal predecessors, (144109), 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) [2021-11-06 18:17:34,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100439 states to 100439 states and 144109 transitions. [2021-11-06 18:17:34,964 INFO L78 Accepts]: Start accepts. Automaton has 100439 states and 144109 transitions. Word has length 116 [2021-11-06 18:17:34,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:17:34,965 INFO L470 AbstractCegarLoop]: Abstraction has 100439 states and 144109 transitions. [2021-11-06 18:17:34,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2021-11-06 18:17:34,965 INFO L276 IsEmpty]: Start isEmpty. Operand 100439 states and 144109 transitions. [2021-11-06 18:17:34,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-06 18:17:34,969 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:17:34,969 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:17:34,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 18:17:34,969 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-06 18:17:34,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:17:34,970 INFO L85 PathProgramCache]: Analyzing trace with hash 707470317, now seen corresponding path program 1 times [2021-11-06 18:17:34,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:17:34,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562173163] [2021-11-06 18:17:34,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:17:34,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:17:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:17:35,282 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-06 18:17:35,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:17:35,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562173163] [2021-11-06 18:17:35,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562173163] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:17:35,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:17:35,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:17:35,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927546123] [2021-11-06 18:17:35,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:17:35,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:17:35,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:17:35,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:17:35,284 INFO L87 Difference]: Start difference. First operand 100439 states and 144109 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2021-11-06 18:17:39,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:17:39,842 INFO L93 Difference]: Finished difference Result 249731 states and 358691 transitions. [2021-11-06 18:17:39,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:17:39,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 116 [2021-11-06 18:17:39,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:17:40,149 INFO L225 Difference]: With dead ends: 249731 [2021-11-06 18:17:40,150 INFO L226 Difference]: Without dead ends: 149010 [2021-11-06 18:17:40,239 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:17:40,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149010 states. [2021-11-06 18:17:42,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149010 to 148956. [2021-11-06 18:17:42,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148956 states, 148929 states have (on average 1.4376514983649926) internal successors, (214108), 148955 states have internal predecessors, (214108), 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) [2021-11-06 18:17:43,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148956 states to 148956 states and 214108 transitions. [2021-11-06 18:17:43,113 INFO L78 Accepts]: Start accepts. Automaton has 148956 states and 214108 transitions. Word has length 116 [2021-11-06 18:17:43,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:17:43,114 INFO L470 AbstractCegarLoop]: Abstraction has 148956 states and 214108 transitions. [2021-11-06 18:17:43,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2021-11-06 18:17:43,114 INFO L276 IsEmpty]: Start isEmpty. Operand 148956 states and 214108 transitions. [2021-11-06 18:17:43,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-06 18:17:43,117 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:17:43,117 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:17:43,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 18:17:43,117 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-06 18:17:43,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:17:43,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1199430277, now seen corresponding path program 1 times [2021-11-06 18:17:43,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:17:43,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986160399] [2021-11-06 18:17:43,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:17:43,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:17:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:17:43,660 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 18:17:43,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:17:43,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986160399] [2021-11-06 18:17:43,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986160399] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:17:43,661 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:17:43,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:17:43,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334376073] [2021-11-06 18:17:43,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:17:43,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:17:43,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:17:43,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:17:43,662 INFO L87 Difference]: Start difference. First operand 148956 states and 214108 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:17:49,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:17:49,253 INFO L93 Difference]: Finished difference Result 313072 states and 450037 transitions. [2021-11-06 18:17:49,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:17:49,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-06 18:17:49,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:17:49,634 INFO L225 Difference]: With dead ends: 313072 [2021-11-06 18:17:49,634 INFO L226 Difference]: Without dead ends: 164261 [2021-11-06 18:17:49,761 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:17:49,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164261 states. [2021-11-06 18:17:52,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164261 to 164108. [2021-11-06 18:17:52,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164108 states, 164081 states have (on average 1.4350656078400301) internal successors, (235467), 164107 states have internal predecessors, (235467), 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) [2021-11-06 18:17:53,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164108 states to 164108 states and 235467 transitions. [2021-11-06 18:17:53,241 INFO L78 Accepts]: Start accepts. Automaton has 164108 states and 235467 transitions. Word has length 117 [2021-11-06 18:17:53,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:17:53,241 INFO L470 AbstractCegarLoop]: Abstraction has 164108 states and 235467 transitions. [2021-11-06 18:17:53,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:17:53,241 INFO L276 IsEmpty]: Start isEmpty. Operand 164108 states and 235467 transitions. [2021-11-06 18:17:53,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-06 18:17:53,245 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:17:53,246 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:17:53,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 18:17:53,246 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-06 18:17:53,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:17:53,247 INFO L85 PathProgramCache]: Analyzing trace with hash -359945721, now seen corresponding path program 1 times [2021-11-06 18:17:53,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:17:53,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934616153] [2021-11-06 18:17:53,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:17:53,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:17:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:17:53,592 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-06 18:17:53,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:17:53,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934616153] [2021-11-06 18:17:53,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934616153] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:17:53,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:17:53,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 18:17:53,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498629789] [2021-11-06 18:17:53,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:17:53,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:17:53,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:17:53,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:17:53,593 INFO L87 Difference]: Start difference. First operand 164108 states and 235467 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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) [2021-11-06 18:17:57,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:17:57,336 INFO L93 Difference]: Finished difference Result 328071 states and 470772 transitions. [2021-11-06 18:17:57,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:17:57,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2021-11-06 18:17:57,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:17:57,720 INFO L225 Difference]: With dead ends: 328071 [2021-11-06 18:17:57,720 INFO L226 Difference]: Without dead ends: 164108 [2021-11-06 18:17:58,107 INFO L786 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 [2021-11-06 18:17:58,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164108 states. [2021-11-06 18:18:01,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164108 to 164108. [2021-11-06 18:18:01,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164108 states, 164081 states have (on average 1.4262894545986433) internal successors, (234027), 164107 states have internal predecessors, (234027), 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)