./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-ethernet-intel-igbvf-igbvf.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-ethernet-intel-igbvf-igbvf.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 4295d1eb99eb4c4e306792d8730363a971cf6332e7c089b8c1be6cbddd5edcb9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 18:12:01,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 18:12:01,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 18:12:02,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 18:12:02,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 18:12:02,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 18:12:02,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 18:12:02,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 18:12:02,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 18:12:02,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 18:12:02,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 18:12:02,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 18:12:02,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 18:12:02,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 18:12:02,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 18:12:02,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 18:12:02,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 18:12:02,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 18:12:02,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 18:12:02,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 18:12:02,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 18:12:02,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 18:12:02,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 18:12:02,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 18:12:02,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 18:12:02,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 18:12:02,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 18:12:02,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 18:12:02,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 18:12:02,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 18:12:02,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 18:12:02,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 18:12:02,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 18:12:02,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 18:12:02,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 18:12:02,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 18:12:02,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 18:12:02,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 18:12:02,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 18:12:02,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 18:12:02,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 18:12:02,050 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 18:12:02,076 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 18:12:02,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 18:12:02,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 18:12:02,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 18:12:02,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 18:12:02,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 18:12:02,078 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 18:12:02,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 18:12:02,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 18:12:02,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 18:12:02,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 18:12:02,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 18:12:02,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 18:12:02,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 18:12:02,080 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 18:12:02,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 18:12:02,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 18:12:02,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 18:12:02,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 18:12:02,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:12:02,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 18:12:02,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 18:12:02,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 18:12:02,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 18:12:02,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 18:12:02,082 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 18:12:02,083 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 18:12:02,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 18:12:02,084 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 18:12:02,084 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4295d1eb99eb4c4e306792d8730363a971cf6332e7c089b8c1be6cbddd5edcb9 [2021-11-06 18:12:02,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 18:12:02,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 18:12:02,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 18:12:02,337 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 18:12:02,338 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 18:12:02,339 INFO L432 ainManager$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-ethernet-intel-igbvf-igbvf.cil.i [2021-11-06 18:12:02,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/166085fe9/26098466923547228ffcafe3797e56aa/FLAGe4d973fbe [2021-11-06 18:12:03,303 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 18:12:03,305 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-ethernet-intel-igbvf-igbvf.cil.i [2021-11-06 18:12:03,363 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/166085fe9/26098466923547228ffcafe3797e56aa/FLAGe4d973fbe [2021-11-06 18:12:03,393 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/166085fe9/26098466923547228ffcafe3797e56aa [2021-11-06 18:12:03,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 18:12:03,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 18:12:03,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 18:12:03,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 18:12:03,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 18:12:03,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:12:03" (1/1) ... [2021-11-06 18:12:03,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f731aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:12:03, skipping insertion in model container [2021-11-06 18:12:03,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:12:03" (1/1) ... [2021-11-06 18:12:03,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 18:12:03,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 18:12:06,880 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-ethernet-intel-igbvf-igbvf.cil.i[487689,487702] [2021-11-06 18:12:06,882 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-ethernet-intel-igbvf-igbvf.cil.i[487834,487847] [2021-11-06 18:12:06,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:12:06,976 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 18:12:07,380 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-ethernet-intel-igbvf-igbvf.cil.i[487689,487702] [2021-11-06 18:12:07,381 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-ethernet-intel-igbvf-igbvf.cil.i[487834,487847] [2021-11-06 18:12:07,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:12:07,643 INFO L208 MainTranslator]: Completed translation [2021-11-06 18:12:07,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:12:07 WrapperNode [2021-11-06 18:12:07,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 18:12:07,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 18:12:07,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 18:12:07,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 18:12:07,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:12:07" (1/1) ... [2021-11-06 18:12:07,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:12:07" (1/1) ... [2021-11-06 18:12:09,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 18:12:09,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 18:12:09,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 18:12:09,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 18:12:09,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:12:07" (1/1) ... [2021-11-06 18:12:09,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:12:07" (1/1) ... [2021-11-06 18:12:09,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:12:07" (1/1) ... [2021-11-06 18:12:09,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:12:07" (1/1) ... [2021-11-06 18:12:10,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:12:07" (1/1) ... [2021-11-06 18:12:10,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:12:07" (1/1) ... [2021-11-06 18:12:11,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:12:07" (1/1) ... [2021-11-06 18:12:11,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 18:12:11,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 18:12:11,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 18:12:11,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 18:12:11,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:12:07" (1/1) ... [2021-11-06 18:12:11,519 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:12:11,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:12:11,581 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 18:12:11,647 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 18:12:11,691 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw_vf [2021-11-06 18:12:11,699 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw_vf [2021-11-06 18:12:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 18:12:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 18:12:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 18:12:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 18:12:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 18:12:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 18:12:11,701 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_posted_mbx [2021-11-06 18:12:11,701 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_posted_mbx [2021-11-06 18:12:11,701 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_hw_vf [2021-11-06 18:12:11,701 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_hw_vf [2021-11-06 18:12:11,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 18:12:11,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 18:12:11,702 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_ack [2021-11-06 18:12:11,702 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_ack [2021-11-06 18:12:11,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 18:12:11,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 18:12:11,702 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set_vf [2021-11-06 18:12:11,702 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set_vf [2021-11-06 18:12:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link_vf [2021-11-06 18:12:11,703 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link_vf [2021-11-06 18:12:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 18:12:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 18:12:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-06 18:12:11,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-06 18:12:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 18:12:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-06 18:12:11,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-06 18:12:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_msg [2021-11-06 18:12:11,704 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_msg [2021-11-06 18:12:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 18:12:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_posted_mbx [2021-11-06 18:12:11,705 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_posted_mbx [2021-11-06 18:12:11,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 18:12:11,705 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-06 18:12:38,805 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 18:12:38,806 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-06 18:12:38,806 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 18:12:38,806 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 18:12:38,808 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 18:12:38,808 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 18:12:38,991 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 18:12:38,992 INFO L299 CfgBuilder]: Removed 9881 assume(true) statements. [2021-11-06 18:12:39,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:12:39 BoogieIcfgContainer [2021-11-06 18:12:39,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 18:12:39,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 18:12:39,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 18:12:39,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 18:12:39,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:12:03" (1/3) ... [2021-11-06 18:12:39,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f99147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:12:39, skipping insertion in model container [2021-11-06 18:12:39,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:12:07" (2/3) ... [2021-11-06 18:12:39,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f99147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:12:39, skipping insertion in model container [2021-11-06 18:12:39,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:12:39" (3/3) ... [2021-11-06 18:12:39,010 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-06 18:12:39,014 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 18:12:39,014 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2021-11-06 18:12:39,088 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 18:12:39,093 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 18:12:39,093 INFO L340 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2021-11-06 18:12:39,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 10035 states, 9864 states have (on average 1.3700324412003244) internal successors, (13514), 9909 states have internal predecessors, (13514), 115 states have call successors, (115), 10 states have call predecessors, (115), 10 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2021-11-06 18:12:39,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-06 18:12:39,241 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:12:39,242 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:39,242 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-06 18:12:39,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:12:39,250 INFO L85 PathProgramCache]: Analyzing trace with hash -670838690, now seen corresponding path program 1 times [2021-11-06 18:12:39,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:12:39,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311855193] [2021-11-06 18:12:39,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:12:39,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:12:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:12:40,039 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 18:12:40,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:12:40,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311855193] [2021-11-06 18:12:40,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311855193] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:12:40,042 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:12:40,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:12:40,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765391971] [2021-11-06 18:12:40,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:12:40,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:12:40,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:12:40,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:12:40,081 INFO L87 Difference]: Start difference. First operand has 10035 states, 9864 states have (on average 1.3700324412003244) internal successors, (13514), 9909 states have internal predecessors, (13514), 115 states have call successors, (115), 10 states have call predecessors, (115), 10 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 18:12:42,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:12:42,948 INFO L93 Difference]: Finished difference Result 23057 states and 31634 transitions. [2021-11-06 18:12:42,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:12:42,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 103 [2021-11-06 18:12:42,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:12:43,031 INFO L225 Difference]: With dead ends: 23057 [2021-11-06 18:12:43,031 INFO L226 Difference]: Without dead ends: 12845 [2021-11-06 18:12:43,068 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 18:12:43,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12845 states. [2021-11-06 18:12:43,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12845 to 12813. [2021-11-06 18:12:43,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12813 states, 12586 states have (on average 1.3380740505323374) internal successors, (16841), 12631 states have internal predecessors, (16841), 161 states have call successors, (161), 20 states have call predecessors, (161), 20 states have return successors, (161), 161 states have call predecessors, (161), 161 states have call successors, (161) [2021-11-06 18:12:43,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12813 states to 12813 states and 17163 transitions. [2021-11-06 18:12:43,647 INFO L78 Accepts]: Start accepts. Automaton has 12813 states and 17163 transitions. Word has length 103 [2021-11-06 18:12:43,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:12:43,648 INFO L470 AbstractCegarLoop]: Abstraction has 12813 states and 17163 transitions. [2021-11-06 18:12:43,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 18:12:43,649 INFO L276 IsEmpty]: Start isEmpty. Operand 12813 states and 17163 transitions. [2021-11-06 18:12:43,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-06 18:12:43,653 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:12:43,653 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:43,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 18:12:43,654 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-06 18:12:43,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:12:43,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1026933273, now seen corresponding path program 1 times [2021-11-06 18:12:43,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:12:43,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022955530] [2021-11-06 18:12:43,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:12:43,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:12:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:12:43,955 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 18:12:43,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:12:43,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022955530] [2021-11-06 18:12:43,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022955530] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:12:43,956 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:12:43,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:12:43,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890129079] [2021-11-06 18:12:43,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:12:43,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:12:43,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:12:43,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:12:43,959 INFO L87 Difference]: Start difference. First operand 12813 states and 17163 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 18:12:46,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:12:46,998 INFO L93 Difference]: Finished difference Result 32510 states and 43541 transitions. [2021-11-06 18:12:46,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:12:47,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 118 [2021-11-06 18:12:47,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:12:47,103 INFO L225 Difference]: With dead ends: 32510 [2021-11-06 18:12:47,103 INFO L226 Difference]: Without dead ends: 19893 [2021-11-06 18:12:47,137 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 18:12:47,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19893 states. [2021-11-06 18:12:47,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19893 to 19265. [2021-11-06 18:12:47,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19265 states, 18940 states have (on average 1.3372756071805703) internal successors, (25328), 18987 states have internal predecessors, (25328), 249 states have call successors, (249), 30 states have call predecessors, (249), 30 states have return successors, (249), 247 states have call predecessors, (249), 249 states have call successors, (249) [2021-11-06 18:12:47,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19265 states to 19265 states and 25826 transitions. [2021-11-06 18:12:47,647 INFO L78 Accepts]: Start accepts. Automaton has 19265 states and 25826 transitions. Word has length 118 [2021-11-06 18:12:47,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:12:47,649 INFO L470 AbstractCegarLoop]: Abstraction has 19265 states and 25826 transitions. [2021-11-06 18:12:47,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 18:12:47,649 INFO L276 IsEmpty]: Start isEmpty. Operand 19265 states and 25826 transitions. [2021-11-06 18:12:47,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-06 18:12:47,653 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:12:47,655 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:12:47,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 18:12:47,655 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-06 18:12:47,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:12:47,656 INFO L85 PathProgramCache]: Analyzing trace with hash -388310239, now seen corresponding path program 1 times [2021-11-06 18:12:47,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:12:47,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361247322] [2021-11-06 18:12:47,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:12:47,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:12:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:12:48,047 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:12:48,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:12:48,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361247322] [2021-11-06 18:12:48,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361247322] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:12:48,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:12:48,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:12:48,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357743572] [2021-11-06 18:12:48,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:12:48,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:12:48,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:12:48,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:12:48,053 INFO L87 Difference]: Start difference. First operand 19265 states and 25826 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 18:12:50,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:12:50,850 INFO L93 Difference]: Finished difference Result 41738 states and 56037 transitions. [2021-11-06 18:12:50,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:12:50,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 135 [2021-11-06 18:12:50,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:12:50,927 INFO L225 Difference]: With dead ends: 41738 [2021-11-06 18:12:50,928 INFO L226 Difference]: Without dead ends: 22669 [2021-11-06 18:12:50,984 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 18:12:51,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22669 states. [2021-11-06 18:12:51,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22669 to 22633. [2021-11-06 18:12:51,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22633 states, 22252 states have (on average 1.3387111270896999) internal successors, (29789), 22299 states have internal predecessors, (29789), 295 states have call successors, (295), 40 states have call predecessors, (295), 40 states have return successors, (295), 293 states have call predecessors, (295), 295 states have call successors, (295) [2021-11-06 18:12:51,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22633 states to 22633 states and 30379 transitions. [2021-11-06 18:12:51,570 INFO L78 Accepts]: Start accepts. Automaton has 22633 states and 30379 transitions. Word has length 135 [2021-11-06 18:12:51,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:12:51,571 INFO L470 AbstractCegarLoop]: Abstraction has 22633 states and 30379 transitions. [2021-11-06 18:12:51,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 18:12:51,572 INFO L276 IsEmpty]: Start isEmpty. Operand 22633 states and 30379 transitions. [2021-11-06 18:12:51,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-06 18:12:51,575 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:12:51,576 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:51,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 18:12:51,576 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-06 18:12:51,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:12:51,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1221308200, now seen corresponding path program 1 times [2021-11-06 18:12:51,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:12:51,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284093705] [2021-11-06 18:12:51,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:12:51,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:12:51,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:12:51,998 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 18:12:51,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:12:51,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284093705] [2021-11-06 18:12:51,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284093705] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:12:51,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:12:51,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:12:51,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133291922] [2021-11-06 18:12:52,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:12:52,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:12:52,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:12:52,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:12:52,001 INFO L87 Difference]: Start difference. First operand 22633 states and 30379 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 18:12:54,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:12:54,746 INFO L93 Difference]: Finished difference Result 48466 states and 65127 transitions. [2021-11-06 18:12:54,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:12:54,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 174 [2021-11-06 18:12:54,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:12:54,831 INFO L225 Difference]: With dead ends: 48466 [2021-11-06 18:12:54,831 INFO L226 Difference]: Without dead ends: 26029 [2021-11-06 18:12:54,897 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 18:12:54,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26029 states. [2021-11-06 18:12:55,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26029 to 25993. [2021-11-06 18:12:55,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25993 states, 25556 states have (on average 1.339881045547034) internal successors, (34242), 25603 states have internal predecessors, (34242), 341 states have call successors, (341), 50 states have call predecessors, (341), 50 states have return successors, (341), 339 states have call predecessors, (341), 341 states have call successors, (341) [2021-11-06 18:12:55,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25993 states to 25993 states and 34924 transitions. [2021-11-06 18:12:55,582 INFO L78 Accepts]: Start accepts. Automaton has 25993 states and 34924 transitions. Word has length 174 [2021-11-06 18:12:55,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:12:55,582 INFO L470 AbstractCegarLoop]: Abstraction has 25993 states and 34924 transitions. [2021-11-06 18:12:55,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 18:12:55,583 INFO L276 IsEmpty]: Start isEmpty. Operand 25993 states and 34924 transitions. [2021-11-06 18:12:55,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-06 18:12:55,587 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:12:55,587 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:55,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 18:12:55,587 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-06 18:12:55,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:12:55,588 INFO L85 PathProgramCache]: Analyzing trace with hash 711835110, now seen corresponding path program 1 times [2021-11-06 18:12:55,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:12:55,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299849189] [2021-11-06 18:12:55,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:12:55,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:12:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:12:56,025 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 18:12:56,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:12:56,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299849189] [2021-11-06 18:12:56,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299849189] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:12:56,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:12:56,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:12:56,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107722975] [2021-11-06 18:12:56,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:12:56,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:12:56,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:12:56,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:12:56,028 INFO L87 Difference]: Start difference. First operand 25993 states and 34924 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 18:12:58,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:12:58,864 INFO L93 Difference]: Finished difference Result 55406 states and 74518 transitions. [2021-11-06 18:12:58,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:12:58,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 174 [2021-11-06 18:12:58,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:12:58,944 INFO L225 Difference]: With dead ends: 55406 [2021-11-06 18:12:58,945 INFO L226 Difference]: Without dead ends: 29609 [2021-11-06 18:12:58,983 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 18:12:59,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29609 states. [2021-11-06 18:12:59,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29609 to 29573. [2021-11-06 18:12:59,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29573 states, 29051 states have (on average 1.3408144297958762) internal successors, (38952), 29098 states have internal predecessors, (38952), 406 states have call successors, (406), 70 states have call predecessors, (406), 70 states have return successors, (406), 404 states have call predecessors, (406), 406 states have call successors, (406) [2021-11-06 18:12:59,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29573 states to 29573 states and 39764 transitions. [2021-11-06 18:12:59,664 INFO L78 Accepts]: Start accepts. Automaton has 29573 states and 39764 transitions. Word has length 174 [2021-11-06 18:12:59,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:12:59,665 INFO L470 AbstractCegarLoop]: Abstraction has 29573 states and 39764 transitions. [2021-11-06 18:12:59,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 18:12:59,665 INFO L276 IsEmpty]: Start isEmpty. Operand 29573 states and 39764 transitions. [2021-11-06 18:12:59,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-06 18:12:59,671 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:12:59,671 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:59,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 18:12:59,672 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-06 18:12:59,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:12:59,672 INFO L85 PathProgramCache]: Analyzing trace with hash 206494537, now seen corresponding path program 1 times [2021-11-06 18:12:59,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:12:59,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196231435] [2021-11-06 18:12:59,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:12:59,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:12:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:12:59,926 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-06 18:12:59,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:12:59,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196231435] [2021-11-06 18:12:59,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196231435] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:12:59,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:12:59,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:12:59,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129214839] [2021-11-06 18:12:59,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:12:59,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:12:59,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:12:59,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:12:59,931 INFO L87 Difference]: Start difference. First operand 29573 states and 39764 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 18:13:02,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:13:02,699 INFO L93 Difference]: Finished difference Result 62348 states and 83901 transitions. [2021-11-06 18:13:02,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:13:02,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 210 [2021-11-06 18:13:02,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:13:02,802 INFO L225 Difference]: With dead ends: 62348 [2021-11-06 18:13:02,802 INFO L226 Difference]: Without dead ends: 32971 [2021-11-06 18:13:02,874 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 18:13:02,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32971 states. [2021-11-06 18:13:03,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32971 to 32935. [2021-11-06 18:13:03,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32935 states, 32357 states have (on average 1.3415026114905584) internal successors, (43407), 32404 states have internal predecessors, (43407), 452 states have call successors, (452), 80 states have call predecessors, (452), 80 states have return successors, (452), 450 states have call predecessors, (452), 452 states have call successors, (452) [2021-11-06 18:13:03,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32935 states to 32935 states and 44311 transitions. [2021-11-06 18:13:03,787 INFO L78 Accepts]: Start accepts. Automaton has 32935 states and 44311 transitions. Word has length 210 [2021-11-06 18:13:03,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:13:03,788 INFO L470 AbstractCegarLoop]: Abstraction has 32935 states and 44311 transitions. [2021-11-06 18:13:03,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 18:13:03,788 INFO L276 IsEmpty]: Start isEmpty. Operand 32935 states and 44311 transitions. [2021-11-06 18:13:03,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-06 18:13:03,794 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:13:03,794 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:13:03,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 18:13:03,795 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-06 18:13:03,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:13:03,795 INFO L85 PathProgramCache]: Analyzing trace with hash -302978553, now seen corresponding path program 1 times [2021-11-06 18:13:03,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:13:03,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114381335] [2021-11-06 18:13:03,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:13:03,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:13:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:13:04,042 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-06 18:13:04,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:13:04,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114381335] [2021-11-06 18:13:04,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114381335] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:13:04,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:13:04,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:13:04,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801230265] [2021-11-06 18:13:04,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:13:04,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:13:04,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:13:04,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:13:04,046 INFO L87 Difference]: Start difference. First operand 32935 states and 44311 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 18:13:06,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:13:06,967 INFO L93 Difference]: Finished difference Result 69074 states and 92999 transitions. [2021-11-06 18:13:06,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:13:06,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 210 [2021-11-06 18:13:06,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:13:07,052 INFO L225 Difference]: With dead ends: 69074 [2021-11-06 18:13:07,053 INFO L226 Difference]: Without dead ends: 36335 [2021-11-06 18:13:07,111 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 18:13:07,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36335 states. [2021-11-06 18:13:07,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36335 to 36299. [2021-11-06 18:13:07,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36299 states, 35665 states have (on average 1.342044020748633) internal successors, (47864), 35712 states have internal predecessors, (47864), 498 states have call successors, (498), 90 states have call predecessors, (498), 90 states have return successors, (498), 496 states have call predecessors, (498), 498 states have call successors, (498) [2021-11-06 18:13:07,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36299 states to 36299 states and 48860 transitions. [2021-11-06 18:13:07,945 INFO L78 Accepts]: Start accepts. Automaton has 36299 states and 48860 transitions. Word has length 210 [2021-11-06 18:13:07,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:13:07,947 INFO L470 AbstractCegarLoop]: Abstraction has 36299 states and 48860 transitions. [2021-11-06 18:13:07,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 18:13:07,948 INFO L276 IsEmpty]: Start isEmpty. Operand 36299 states and 48860 transitions. [2021-11-06 18:13:07,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-06 18:13:07,954 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:13:07,955 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:13:07,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 18:13:07,955 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-06 18:13:07,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:13:07,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1908348413, now seen corresponding path program 1 times [2021-11-06 18:13:07,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:13:07,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958778689] [2021-11-06 18:13:07,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:13:07,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:13:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:13:08,634 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-06 18:13:08,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:13:08,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958778689] [2021-11-06 18:13:08,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958778689] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:13:08,635 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:13:08,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 18:13:08,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372736966] [2021-11-06 18:13:08,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:13:08,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:13:08,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:13:08,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:13:08,637 INFO L87 Difference]: Start difference. First operand 36299 states and 48860 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 2 states have internal predecessors, (208), 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 18:13:09,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:13:09,460 INFO L93 Difference]: Finished difference Result 72402 states and 97500 transitions. [2021-11-06 18:13:09,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:13:09,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 2 states have internal predecessors, (208), 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 232 [2021-11-06 18:13:09,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:13:09,547 INFO L225 Difference]: With dead ends: 72402 [2021-11-06 18:13:09,547 INFO L226 Difference]: Without dead ends: 36299 [2021-11-06 18:13:09,622 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 18:13:09,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36299 states. [2021-11-06 18:13:10,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36299 to 36299. [2021-11-06 18:13:10,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36299 states, 35665 states have (on average 1.3375017524183372) internal successors, (47702), 35712 states have internal predecessors, (47702), 498 states have call successors, (498), 90 states have call predecessors, (498), 90 states have return successors, (498), 496 states have call predecessors, (498), 498 states have call successors, (498) [2021-11-06 18:13:10,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36299 states to 36299 states and 48698 transitions. [2021-11-06 18:13:10,502 INFO L78 Accepts]: Start accepts. Automaton has 36299 states and 48698 transitions. Word has length 232 [2021-11-06 18:13:10,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:13:10,504 INFO L470 AbstractCegarLoop]: Abstraction has 36299 states and 48698 transitions. [2021-11-06 18:13:10,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 2 states have internal predecessors, (208), 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 18:13:10,505 INFO L276 IsEmpty]: Start isEmpty. Operand 36299 states and 48698 transitions. [2021-11-06 18:13:10,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-06 18:13:10,513 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:13:10,513 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:13:10,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 18:13:10,514 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-06 18:13:10,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:13:10,514 INFO L85 PathProgramCache]: Analyzing trace with hash 970706135, now seen corresponding path program 1 times [2021-11-06 18:13:10,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:13:10,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611546071] [2021-11-06 18:13:10,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:13:10,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:13:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:13:11,029 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-06 18:13:11,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:13:11,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611546071] [2021-11-06 18:13:11,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611546071] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:13:11,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:13:11,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:13:11,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404740357] [2021-11-06 18:13:11,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:13:11,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:13:11,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:13:11,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:13:11,032 INFO L87 Difference]: Start difference. First operand 36299 states and 48698 transitions. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 3 states have internal predecessors, (209), 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 18:13:12,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:13:12,456 INFO L93 Difference]: Finished difference Result 72402 states and 97176 transitions. [2021-11-06 18:13:12,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:13:12,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 3 states have internal predecessors, (209), 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 233 [2021-11-06 18:13:12,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:13:12,533 INFO L225 Difference]: With dead ends: 72402 [2021-11-06 18:13:12,533 INFO L226 Difference]: Without dead ends: 36299 [2021-11-06 18:13:12,601 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:13:12,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36299 states. [2021-11-06 18:13:13,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36299 to 36299. [2021-11-06 18:13:13,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36299 states, 35665 states have (on average 1.3329594840880414) internal successors, (47540), 35712 states have internal predecessors, (47540), 498 states have call successors, (498), 90 states have call predecessors, (498), 90 states have return successors, (498), 496 states have call predecessors, (498), 498 states have call successors, (498) [2021-11-06 18:13:13,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36299 states to 36299 states and 48536 transitions. [2021-11-06 18:13:13,544 INFO L78 Accepts]: Start accepts. Automaton has 36299 states and 48536 transitions. Word has length 233 [2021-11-06 18:13:13,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:13:13,544 INFO L470 AbstractCegarLoop]: Abstraction has 36299 states and 48536 transitions. [2021-11-06 18:13:13,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 3 states have internal predecessors, (209), 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 18:13:13,544 INFO L276 IsEmpty]: Start isEmpty. Operand 36299 states and 48536 transitions. [2021-11-06 18:13:13,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-06 18:13:13,551 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:13:13,551 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:13:13,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 18:13:13,552 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-06 18:13:13,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:13:13,552 INFO L85 PathProgramCache]: Analyzing trace with hash 27232862, now seen corresponding path program 1 times [2021-11-06 18:13:13,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:13:13,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928501477] [2021-11-06 18:13:13,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:13:13,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:13:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:13:13,938 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-06 18:13:13,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:13:13,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928501477] [2021-11-06 18:13:13,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928501477] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:13:13,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:13:13,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:13:13,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862137498] [2021-11-06 18:13:13,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:13:13,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:13:13,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:13:13,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:13:13,941 INFO L87 Difference]: Start difference. First operand 36299 states and 48536 transitions. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 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 18:13:15,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:13:15,603 INFO L93 Difference]: Finished difference Result 72402 states and 96852 transitions. [2021-11-06 18:13:15,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:13:15,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 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 234 [2021-11-06 18:13:15,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:13:15,665 INFO L225 Difference]: With dead ends: 72402 [2021-11-06 18:13:15,666 INFO L226 Difference]: Without dead ends: 36299 [2021-11-06 18:13:15,701 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:13:15,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36299 states. [2021-11-06 18:13:16,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36299 to 36299. [2021-11-06 18:13:16,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36299 states, 35665 states have (on average 1.3284172157577456) internal successors, (47378), 35712 states have internal predecessors, (47378), 498 states have call successors, (498), 90 states have call predecessors, (498), 90 states have return successors, (498), 496 states have call predecessors, (498), 498 states have call successors, (498) [2021-11-06 18:13:16,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36299 states to 36299 states and 48374 transitions. [2021-11-06 18:13:16,498 INFO L78 Accepts]: Start accepts. Automaton has 36299 states and 48374 transitions. Word has length 234 [2021-11-06 18:13:16,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:13:16,498 INFO L470 AbstractCegarLoop]: Abstraction has 36299 states and 48374 transitions. [2021-11-06 18:13:16,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 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 18:13:16,498 INFO L276 IsEmpty]: Start isEmpty. Operand 36299 states and 48374 transitions. [2021-11-06 18:13:16,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-06 18:13:16,506 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:13:16,506 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:13:16,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-06 18:13:16,506 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-06 18:13:16,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:13:16,507 INFO L85 PathProgramCache]: Analyzing trace with hash 844481426, now seen corresponding path program 1 times [2021-11-06 18:13:16,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:13:16,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820749837] [2021-11-06 18:13:16,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:13:16,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:13:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:13:17,123 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-06 18:13:17,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:13:17,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820749837] [2021-11-06 18:13:17,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820749837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:13:17,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:13:17,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:13:17,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957666913] [2021-11-06 18:13:17,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:13:17,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:13:17,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:13:17,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:13:17,127 INFO L87 Difference]: Start difference. First operand 36299 states and 48374 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 3 states have internal predecessors, (211), 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 18:13:18,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:13:18,814 INFO L93 Difference]: Finished difference Result 72402 states and 96528 transitions. [2021-11-06 18:13:18,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:13:18,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 3 states have internal predecessors, (211), 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 235 [2021-11-06 18:13:18,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:13:18,873 INFO L225 Difference]: With dead ends: 72402 [2021-11-06 18:13:18,874 INFO L226 Difference]: Without dead ends: 36299 [2021-11-06 18:13:18,916 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:13:18,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36299 states. [2021-11-06 18:13:19,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36299 to 36299. [2021-11-06 18:13:19,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36299 states, 35665 states have (on average 1.3238749474274498) internal successors, (47216), 35712 states have internal predecessors, (47216), 498 states have call successors, (498), 90 states have call predecessors, (498), 90 states have return successors, (498), 496 states have call predecessors, (498), 498 states have call successors, (498) [2021-11-06 18:13:19,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36299 states to 36299 states and 48212 transitions. [2021-11-06 18:13:19,889 INFO L78 Accepts]: Start accepts. Automaton has 36299 states and 48212 transitions. Word has length 235 [2021-11-06 18:13:19,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:13:19,890 INFO L470 AbstractCegarLoop]: Abstraction has 36299 states and 48212 transitions. [2021-11-06 18:13:19,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 3 states have internal predecessors, (211), 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 18:13:19,891 INFO L276 IsEmpty]: Start isEmpty. Operand 36299 states and 48212 transitions. [2021-11-06 18:13:19,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-06 18:13:19,896 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:13:19,896 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:13:19,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-06 18:13:19,897 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-06 18:13:19,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:13:19,897 INFO L85 PathProgramCache]: Analyzing trace with hash 409532089, now seen corresponding path program 1 times [2021-11-06 18:13:19,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:13:19,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96088548] [2021-11-06 18:13:19,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:13:19,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:13:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:13:20,263 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-06 18:13:20,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:13:20,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96088548] [2021-11-06 18:13:20,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96088548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:13:20,264 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:13:20,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:13:20,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373833187] [2021-11-06 18:13:20,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:13:20,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:13:20,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:13:20,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:13:20,266 INFO L87 Difference]: Start difference. First operand 36299 states and 48212 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 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 18:13:22,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:13:22,080 INFO L93 Difference]: Finished difference Result 72402 states and 96204 transitions. [2021-11-06 18:13:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:13:22,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 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 236 [2021-11-06 18:13:22,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:13:22,146 INFO L225 Difference]: With dead ends: 72402 [2021-11-06 18:13:22,147 INFO L226 Difference]: Without dead ends: 36299 [2021-11-06 18:13:22,199 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:13:22,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36299 states. [2021-11-06 18:13:23,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36299 to 36299. [2021-11-06 18:13:23,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36299 states, 35665 states have (on average 1.319332679097154) internal successors, (47054), 35712 states have internal predecessors, (47054), 498 states have call successors, (498), 90 states have call predecessors, (498), 90 states have return successors, (498), 496 states have call predecessors, (498), 498 states have call successors, (498) [2021-11-06 18:13:23,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36299 states to 36299 states and 48050 transitions. [2021-11-06 18:13:23,307 INFO L78 Accepts]: Start accepts. Automaton has 36299 states and 48050 transitions. Word has length 236 [2021-11-06 18:13:23,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:13:23,308 INFO L470 AbstractCegarLoop]: Abstraction has 36299 states and 48050 transitions. [2021-11-06 18:13:23,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 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 18:13:23,308 INFO L276 IsEmpty]: Start isEmpty. Operand 36299 states and 48050 transitions. [2021-11-06 18:13:23,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-06 18:13:23,312 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:13:23,313 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:13:23,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-06 18:13:23,313 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-06 18:13:23,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:13:23,313 INFO L85 PathProgramCache]: Analyzing trace with hash -188846515, now seen corresponding path program 1 times [2021-11-06 18:13:23,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:13:23,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225437024] [2021-11-06 18:13:23,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:13:23,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:13:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:13:23,675 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-06 18:13:23,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:13:23,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225437024] [2021-11-06 18:13:23,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225437024] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:13:23,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:13:23,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:13:23,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612692873] [2021-11-06 18:13:23,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:13:23,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:13:23,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:13:23,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:13:23,679 INFO L87 Difference]: Start difference. First operand 36299 states and 48050 transitions. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)