./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 4d014703 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-wip.dd.seqcomp-4d01470 [2021-11-02 23:25:56,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:25:56,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:25:57,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:25:57,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:25:57,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:25:57,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:25:57,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:25:57,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:25:57,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:25:57,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:25:57,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:25:57,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:25:57,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:25:57,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:25:57,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:25:57,028 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:25:57,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:25:57,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:25:57,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:25:57,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:25:57,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:25:57,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:25:57,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:25:57,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:25:57,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:25:57,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:25:57,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:25:57,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:25:57,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:25:57,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:25:57,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:25:57,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:25:57,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:25:57,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:25:57,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:25:57,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:25:57,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:25:57,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:25:57,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:25:57,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:25:57,059 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 23:25:57,076 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:25:57,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:25:57,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:25:57,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:25:57,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:25:57,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:25:57,078 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:25:57,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:25:57,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:25:57,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:25:57,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 23:25:57,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:25:57,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 23:25:57,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:25:57,079 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:25:57,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 23:25:57,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:25:57,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:25:57,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:25:57,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:25:57,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:25:57,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:25:57,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 23:25:57,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:25:57,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 23:25:57,081 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 23:25:57,081 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 23:25:57,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 23:25:57,081 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:25:57,081 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4295d1eb99eb4c4e306792d8730363a971cf6332e7c089b8c1be6cbddd5edcb9 [2021-11-02 23:25:57,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:25:57,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:25:57,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:25:57,365 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:25:57,367 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:25:57,368 INFO L432 ainManager$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 [2021-11-02 23:25:57,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b8a2aa53/22eb2ef6460d4c928b898fa3343412b5/FLAGdc63b9df8 [2021-11-02 23:25:58,065 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:25:58,066 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 [2021-11-02 23:25:58,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b8a2aa53/22eb2ef6460d4c928b898fa3343412b5/FLAGdc63b9df8 [2021-11-02 23:25:58,189 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b8a2aa53/22eb2ef6460d4c928b898fa3343412b5 [2021-11-02 23:25:58,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:25:58,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:25:58,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:25:58,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:25:58,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:25:58,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:58" (1/1) ... [2021-11-02 23:25:58,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6ff627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:58, skipping insertion in model container [2021-11-02 23:25:58,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:58" (1/1) ... [2021-11-02 23:25:58,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:25:58,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:26:02,509 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] [2021-11-02 23:26:02,514 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] [2021-11-02 23:26:02,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:26:02,627 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:26:02,985 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] [2021-11-02 23:26:02,986 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] [2021-11-02 23:26:02,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:26:03,209 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:26:03,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:03 WrapperNode [2021-11-02 23:26:03,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:26:03,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:26:03,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:26:03,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:26:03,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:03" (1/1) ... [2021-11-02 23:26:03,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:03" (1/1) ... [2021-11-02 23:26:04,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:26:04,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:26:04,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:26:04,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:26:04,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:03" (1/1) ... [2021-11-02 23:26:04,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:03" (1/1) ... [2021-11-02 23:26:05,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:03" (1/1) ... [2021-11-02 23:26:05,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:03" (1/1) ... [2021-11-02 23:26:05,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:03" (1/1) ... [2021-11-02 23:26:06,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:03" (1/1) ... [2021-11-02 23:26:06,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:03" (1/1) ... [2021-11-02 23:26:06,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:26:06,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:26:06,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:26:06,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:26:06,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:03" (1/1) ... [2021-11-02 23:26:06,614 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:26:06,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 23:26:06,669 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) [2021-11-02 23:26:06,727 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 [2021-11-02 23:26:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw_vf [2021-11-02 23:26:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw_vf [2021-11-02 23:26:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 23:26:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 23:26:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 23:26:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 23:26:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 23:26:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 23:26:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_posted_mbx [2021-11-02 23:26:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_posted_mbx [2021-11-02 23:26:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_hw_vf [2021-11-02 23:26:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_hw_vf [2021-11-02 23:26:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:26:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:26:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_ack [2021-11-02 23:26:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_ack [2021-11-02 23:26:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 23:26:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 23:26:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set_vf [2021-11-02 23:26:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set_vf [2021-11-02 23:26:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link_vf [2021-11-02 23:26:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link_vf [2021-11-02 23:26:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:26:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 23:26:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-02 23:26:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-02 23:26:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 23:26:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-02 23:26:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-02 23:26:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_msg [2021-11-02 23:26:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_msg [2021-11-02 23:26:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 23:26:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_posted_mbx [2021-11-02 23:26:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_posted_mbx [2021-11-02 23:26:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:26:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-02 23:26:14,188 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-02 23:26:14,188 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-02 23:26:14,188 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-02 23:26:14,188 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-02 23:26:14,190 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-02 23:26:14,190 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-02 23:26:14,227 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:26:14,228 INFO L299 CfgBuilder]: Removed 9881 assume(true) statements. [2021-11-02 23:26:14,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:26:14 BoogieIcfgContainer [2021-11-02 23:26:14,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:26:14,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:26:14,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:26:14,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:26:14,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:25:58" (1/3) ... [2021-11-02 23:26:14,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c7d9e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:26:14, skipping insertion in model container [2021-11-02 23:26:14,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:03" (2/3) ... [2021-11-02 23:26:14,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c7d9e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:26:14, skipping insertion in model container [2021-11-02 23:26:14,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:26:14" (3/3) ... [2021-11-02 23:26:14,239 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-02 23:26:14,243 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:26:14,243 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2021-11-02 23:26:14,288 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:26:14,293 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 [2021-11-02 23:26:14,293 INFO L340 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2021-11-02 23:26:14,398 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) [2021-11-02 23:26:14,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-02 23:26:14,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:26:14,410 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:26:14,411 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)] === [2021-11-02 23:26:14,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:26:14,415 INFO L85 PathProgramCache]: Analyzing trace with hash -670838690, now seen corresponding path program 1 times [2021-11-02 23:26:14,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:26:14,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531517919] [2021-11-02 23:26:14,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:26:14,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:26:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:26:15,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:26:15,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:26:15,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531517919] [2021-11-02 23:26:15,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531517919] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:26:15,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:26:15,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:26:15,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285558523] [2021-11-02 23:26:15,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:26:15,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:26:15,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:26:15,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:26:15,228 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) [2021-11-02 23:26:18,272 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:26:25,028 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:27:10,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:27:10,995 INFO L93 Difference]: Finished difference Result 23056 states and 31646 transitions. [2021-11-02 23:27:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:27:10,998 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 [2021-11-02 23:27:10,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:27:11,052 INFO L225 Difference]: With dead ends: 23056 [2021-11-02 23:27:11,053 INFO L226 Difference]: Without dead ends: 12844 [2021-11-02 23:27:11,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.78ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:27:11,085 INFO L933 BasicCegarLoop]: 576 mSDtfsCounter, 4389 mSDsluCounter, 13451 mSDsCounter, 0 mSdLazyCounter, 26773 mSolverCounterSat, 21 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48523.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4402 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 26796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 129.91ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 26773 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54031.84ms IncrementalHoareTripleChecker+Time [2021-11-02 23:27:11,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4402 Valid, 1078 Invalid, 26796 Unknown, 0 Unchecked, 129.91ms Time], IncrementalHoareTripleChecker [21 Valid, 26773 Invalid, 2 Unknown, 0 Unchecked, 54031.84ms Time] [2021-11-02 23:27:11,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12844 states. [2021-11-02 23:27:11,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12844 to 12812. [2021-11-02 23:27:11,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12812 states, 12585 states have (on average 1.3381009137862534) internal successors, (16840), 12630 states have internal predecessors, (16840), 161 states have call successors, (161), 20 states have call predecessors, (161), 20 states have return successors, (174), 161 states have call predecessors, (174), 161 states have call successors, (174) [2021-11-02 23:27:11,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12812 states to 12812 states and 17175 transitions. [2021-11-02 23:27:11,407 INFO L78 Accepts]: Start accepts. Automaton has 12812 states and 17175 transitions. Word has length 103 [2021-11-02 23:27:11,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:27:11,410 INFO L470 AbstractCegarLoop]: Abstraction has 12812 states and 17175 transitions. [2021-11-02 23:27:11,410 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) [2021-11-02 23:27:11,411 INFO L276 IsEmpty]: Start isEmpty. Operand 12812 states and 17175 transitions. [2021-11-02 23:27:11,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-02 23:27:11,415 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:27:11,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:27:11,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 23:27:11,416 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)] === [2021-11-02 23:27:11,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:27:11,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1026933273, now seen corresponding path program 1 times [2021-11-02 23:27:11,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:27:11,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356329148] [2021-11-02 23:27:11,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:27:11,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:27:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:27:11,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:27:11,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:27:11,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356329148] [2021-11-02 23:27:11,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356329148] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:27:11,667 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:27:11,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:27:11,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040929849] [2021-11-02 23:27:11,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:27:11,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:27:11,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:27:11,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:27:11,670 INFO L87 Difference]: Start difference. First operand 12812 states and 17175 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) [2021-11-02 23:27:13,438 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:27:16,367 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:27:40,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:28:20,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:28:20,727 INFO L93 Difference]: Finished difference Result 32508 states and 43565 transitions. [2021-11-02 23:28:20,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:28:20,727 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 [2021-11-02 23:28:20,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:28:20,820 INFO L225 Difference]: With dead ends: 32508 [2021-11-02 23:28:20,821 INFO L226 Difference]: Without dead ends: 19892 [2021-11-02 23:28:20,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.28ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:28:20,854 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 9107 mSDsluCounter, 12786 mSDsCounter, 0 mSdLazyCounter, 25393 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59019.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9107 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 25402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 135.48ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 25393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67462.16ms IncrementalHoareTripleChecker+Time [2021-11-02 23:28:20,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9107 Valid, 548 Invalid, 25402 Unknown, 0 Unchecked, 135.48ms Time], IncrementalHoareTripleChecker [9 Valid, 25393 Invalid, 0 Unknown, 0 Unchecked, 67462.16ms Time] [2021-11-02 23:28:20,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19892 states. [2021-11-02 23:28:21,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19892 to 19264. [2021-11-02 23:28:21,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19264 states, 18939 states have (on average 1.3372934157030467) internal successors, (25327), 18986 states have internal predecessors, (25327), 249 states have call successors, (249), 30 states have call predecessors, (249), 30 states have return successors, (262), 247 states have call predecessors, (262), 249 states have call successors, (262) [2021-11-02 23:28:21,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19264 states to 19264 states and 25838 transitions. [2021-11-02 23:28:21,337 INFO L78 Accepts]: Start accepts. Automaton has 19264 states and 25838 transitions. Word has length 118 [2021-11-02 23:28:21,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:28:21,338 INFO L470 AbstractCegarLoop]: Abstraction has 19264 states and 25838 transitions. [2021-11-02 23:28:21,338 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) [2021-11-02 23:28:21,339 INFO L276 IsEmpty]: Start isEmpty. Operand 19264 states and 25838 transitions. [2021-11-02 23:28:21,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-02 23:28:21,345 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:28:21,345 INFO L514 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] [2021-11-02 23:28:21,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 23:28:21,346 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)] === [2021-11-02 23:28:21,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:28:21,347 INFO L85 PathProgramCache]: Analyzing trace with hash -388310239, now seen corresponding path program 1 times [2021-11-02 23:28:21,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:28:21,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765466140] [2021-11-02 23:28:21,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:28:21,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:28:21,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:28:21,642 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:28:21,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:28:21,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765466140] [2021-11-02 23:28:21,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765466140] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:28:21,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:28:21,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:28:21,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482625075] [2021-11-02 23:28:21,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:28:21,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:28:21,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:28:21,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:28:21,646 INFO L87 Difference]: Start difference. First operand 19264 states and 25838 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) [2021-11-02 23:28:23,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:29:19,067 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:29:40,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:29:40,947 INFO L93 Difference]: Finished difference Result 41736 states and 56061 transitions. [2021-11-02 23:29:40,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:29:40,948 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 [2021-11-02 23:29:40,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:29:41,004 INFO L225 Difference]: With dead ends: 41736 [2021-11-02 23:29:41,004 INFO L226 Difference]: Without dead ends: 22668 [2021-11-02 23:29:41,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.05ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:29:41,045 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 4223 mSDsluCounter, 12869 mSDsCounter, 0 mSdLazyCounter, 29555 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67880.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4223 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 29571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 135.99ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 29555 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77728.82ms IncrementalHoareTripleChecker+Time [2021-11-02 23:29:41,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4223 Valid, 552 Invalid, 29571 Unknown, 0 Unchecked, 135.99ms Time], IncrementalHoareTripleChecker [15 Valid, 29555 Invalid, 1 Unknown, 0 Unchecked, 77728.82ms Time] [2021-11-02 23:29:41,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22668 states. [2021-11-02 23:29:41,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22668 to 22632. [2021-11-02 23:29:41,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22632 states, 22251 states have (on average 1.338726349377556) internal successors, (29788), 22298 states have internal predecessors, (29788), 295 states have call successors, (295), 40 states have call predecessors, (295), 40 states have return successors, (308), 293 states have call predecessors, (308), 295 states have call successors, (308) [2021-11-02 23:29:41,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22632 states to 22632 states and 30391 transitions. [2021-11-02 23:29:41,467 INFO L78 Accepts]: Start accepts. Automaton has 22632 states and 30391 transitions. Word has length 135 [2021-11-02 23:29:41,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:29:41,469 INFO L470 AbstractCegarLoop]: Abstraction has 22632 states and 30391 transitions. [2021-11-02 23:29:41,469 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) [2021-11-02 23:29:41,470 INFO L276 IsEmpty]: Start isEmpty. Operand 22632 states and 30391 transitions. [2021-11-02 23:29:41,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-02 23:29:41,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:29:41,473 INFO L514 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] [2021-11-02 23:29:41,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 23:29:41,473 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)] === [2021-11-02 23:29:41,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:29:41,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1221308200, now seen corresponding path program 1 times [2021-11-02 23:29:41,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:29:41,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360048980] [2021-11-02 23:29:41,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:29:41,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:29:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:29:41,882 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-02 23:29:41,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:29:41,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360048980] [2021-11-02 23:29:41,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360048980] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:29:41,883 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:29:41,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:29:41,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231174899] [2021-11-02 23:29:41,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:29:41,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:29:41,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:29:41,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:29:41,885 INFO L87 Difference]: Start difference. First operand 22632 states and 30391 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) [2021-11-02 23:29:43,656 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:29:45,866 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:29:55,316 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:31:04,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:31:04,777 INFO L93 Difference]: Finished difference Result 48464 states and 65151 transitions. [2021-11-02 23:31:04,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:31:04,778 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 [2021-11-02 23:31:04,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:31:04,870 INFO L225 Difference]: With dead ends: 48464 [2021-11-02 23:31:04,870 INFO L226 Difference]: Without dead ends: 26028 [2021-11-02 23:31:04,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.69ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:31:04,923 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 4217 mSDsluCounter, 12882 mSDsCounter, 0 mSdLazyCounter, 29558 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70336.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4217 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 29573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 123.38ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 29558 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 81413.40ms IncrementalHoareTripleChecker+Time [2021-11-02 23:31:04,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4217 Valid, 551 Invalid, 29573 Unknown, 0 Unchecked, 123.38ms Time], IncrementalHoareTripleChecker [13 Valid, 29558 Invalid, 2 Unknown, 0 Unchecked, 81413.40ms Time] [2021-11-02 23:31:04,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26028 states. [2021-11-02 23:31:05,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26028 to 25992. [2021-11-02 23:31:05,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25992 states, 25555 states have (on average 1.3398943455292507) internal successors, (34241), 25602 states have internal predecessors, (34241), 341 states have call successors, (341), 50 states have call predecessors, (341), 50 states have return successors, (354), 339 states have call predecessors, (354), 341 states have call successors, (354) [2021-11-02 23:31:05,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25992 states to 25992 states and 34936 transitions. [2021-11-02 23:31:05,525 INFO L78 Accepts]: Start accepts. Automaton has 25992 states and 34936 transitions. Word has length 174 [2021-11-02 23:31:05,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:31:05,525 INFO L470 AbstractCegarLoop]: Abstraction has 25992 states and 34936 transitions. [2021-11-02 23:31:05,525 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) [2021-11-02 23:31:05,526 INFO L276 IsEmpty]: Start isEmpty. Operand 25992 states and 34936 transitions. [2021-11-02 23:31:05,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-02 23:31:05,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:31:05,529 INFO L514 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] [2021-11-02 23:31:05,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 23:31:05,530 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)] === [2021-11-02 23:31:05,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:31:05,530 INFO L85 PathProgramCache]: Analyzing trace with hash 711835110, now seen corresponding path program 1 times [2021-11-02 23:31:05,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:31:05,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279429488] [2021-11-02 23:31:05,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:31:05,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:31:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:31:05,767 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-02 23:31:05,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:31:05,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279429488] [2021-11-02 23:31:05,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279429488] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:31:05,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:31:05,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:31:05,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562508763] [2021-11-02 23:31:05,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:31:05,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:31:05,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:31:05,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:31:05,770 INFO L87 Difference]: Start difference. First operand 25992 states and 34936 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) [2021-11-02 23:31:07,822 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:32:20,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:32:20,147 INFO L93 Difference]: Finished difference Result 55404 states and 74542 transitions. [2021-11-02 23:32:20,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:32:20,148 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 [2021-11-02 23:32:20,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:32:20,417 INFO L225 Difference]: With dead ends: 55404 [2021-11-02 23:32:20,417 INFO L226 Difference]: Without dead ends: 29608 [2021-11-02 23:32:20,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.90ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:32:20,457 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 7679 mSDsluCounter, 9423 mSDsCounter, 0 mSdLazyCounter, 26164 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61551.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7679 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 26181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 102.14ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 26164 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72882.70ms IncrementalHoareTripleChecker+Time [2021-11-02 23:32:20,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7679 Valid, 494 Invalid, 26181 Unknown, 0 Unchecked, 102.14ms Time], IncrementalHoareTripleChecker [16 Valid, 26164 Invalid, 1 Unknown, 0 Unchecked, 72882.70ms Time] [2021-11-02 23:32:20,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29608 states. [2021-11-02 23:32:20,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29608 to 29572. [2021-11-02 23:32:20,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29572 states, 29050 states have (on average 1.3408261617900172) internal successors, (38951), 29097 states have internal predecessors, (38951), 406 states have call successors, (406), 70 states have call predecessors, (406), 70 states have return successors, (419), 404 states have call predecessors, (419), 406 states have call successors, (419) [2021-11-02 23:32:20,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29572 states to 29572 states and 39776 transitions. [2021-11-02 23:32:20,948 INFO L78 Accepts]: Start accepts. Automaton has 29572 states and 39776 transitions. Word has length 174 [2021-11-02 23:32:20,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:32:20,948 INFO L470 AbstractCegarLoop]: Abstraction has 29572 states and 39776 transitions. [2021-11-02 23:32:20,948 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) [2021-11-02 23:32:20,948 INFO L276 IsEmpty]: Start isEmpty. Operand 29572 states and 39776 transitions. [2021-11-02 23:32:20,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-02 23:32:20,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:32:20,953 INFO L514 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] [2021-11-02 23:32:20,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 23:32:20,953 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)] === [2021-11-02 23:32:20,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:32:20,954 INFO L85 PathProgramCache]: Analyzing trace with hash 206494537, now seen corresponding path program 1 times [2021-11-02 23:32:20,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:32:20,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337602081] [2021-11-02 23:32:20,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:32:20,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:32:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:32:21,216 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-02 23:32:21,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:32:21,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337602081] [2021-11-02 23:32:21,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337602081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:32:21,217 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:32:21,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:32:21,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037317476] [2021-11-02 23:32:21,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:32:21,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:32:21,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:32:21,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:32:21,219 INFO L87 Difference]: Start difference. First operand 29572 states and 39776 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) [2021-11-02 23:32:22,426 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:32:24,199 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:33:22,735 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:33:49,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:33:49,919 INFO L93 Difference]: Finished difference Result 62346 states and 83925 transitions. [2021-11-02 23:33:49,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:33:49,919 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 [2021-11-02 23:33:49,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:33:49,994 INFO L225 Difference]: With dead ends: 62346 [2021-11-02 23:33:49,995 INFO L226 Difference]: Without dead ends: 32970 [2021-11-02 23:33:50,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.34ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:33:50,054 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 4220 mSDsluCounter, 12880 mSDsCounter, 0 mSdLazyCounter, 27667 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72597.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4220 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 27679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 130.70ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 27667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86864.41ms IncrementalHoareTripleChecker+Time [2021-11-02 23:33:50,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4220 Valid, 536 Invalid, 27679 Unknown, 0 Unchecked, 130.70ms Time], IncrementalHoareTripleChecker [12 Valid, 27667 Invalid, 0 Unknown, 0 Unchecked, 86864.41ms Time] [2021-11-02 23:33:50,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32970 states. [2021-11-02 23:33:50,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32970 to 32934. [2021-11-02 23:33:50,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32934 states, 32356 states have (on average 1.3415131660279391) internal successors, (43406), 32403 states have internal predecessors, (43406), 452 states have call successors, (452), 80 states have call predecessors, (452), 80 states have return successors, (465), 450 states have call predecessors, (465), 452 states have call successors, (465) [2021-11-02 23:33:50,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32934 states to 32934 states and 44323 transitions. [2021-11-02 23:33:50,608 INFO L78 Accepts]: Start accepts. Automaton has 32934 states and 44323 transitions. Word has length 210 [2021-11-02 23:33:50,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:33:50,609 INFO L470 AbstractCegarLoop]: Abstraction has 32934 states and 44323 transitions. [2021-11-02 23:33:50,609 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) [2021-11-02 23:33:50,609 INFO L276 IsEmpty]: Start isEmpty. Operand 32934 states and 44323 transitions. [2021-11-02 23:33:50,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-02 23:33:50,614 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:33:50,614 INFO L514 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] [2021-11-02 23:33:50,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 23:33:50,614 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)] === [2021-11-02 23:33:50,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:33:50,615 INFO L85 PathProgramCache]: Analyzing trace with hash -302978553, now seen corresponding path program 1 times [2021-11-02 23:33:50,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:33:50,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270580208] [2021-11-02 23:33:50,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:33:50,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:33:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:33:51,070 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-02 23:33:51,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:33:51,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270580208] [2021-11-02 23:33:51,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270580208] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:33:51,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:33:51,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:33:51,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723103704] [2021-11-02 23:33:51,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:33:51,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:33:51,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:33:51,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:33:51,072 INFO L87 Difference]: Start difference. First operand 32934 states and 44323 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) [2021-11-02 23:33:53,136 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:33:59,944 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:35:10,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:35:10,289 INFO L93 Difference]: Finished difference Result 69072 states and 93023 transitions. [2021-11-02 23:35:10,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:35:10,290 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 [2021-11-02 23:35:10,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:35:10,369 INFO L225 Difference]: With dead ends: 69072 [2021-11-02 23:35:10,369 INFO L226 Difference]: Without dead ends: 36334 [2021-11-02 23:35:10,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.94ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:35:10,417 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 4235 mSDsluCounter, 12866 mSDsCounter, 0 mSdLazyCounter, 29550 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64731.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4235 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 29564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 93.56ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 29550 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77689.17ms IncrementalHoareTripleChecker+Time [2021-11-02 23:35:10,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4235 Valid, 552 Invalid, 29564 Unknown, 0 Unchecked, 93.56ms Time], IncrementalHoareTripleChecker [13 Valid, 29550 Invalid, 1 Unknown, 0 Unchecked, 77689.17ms Time] [2021-11-02 23:35:10,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36334 states. [2021-11-02 23:35:10,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36334 to 36298. [2021-11-02 23:35:10,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36298 states, 35664 states have (on average 1.3420536114849708) internal successors, (47863), 35711 states have internal predecessors, (47863), 498 states have call successors, (498), 90 states have call predecessors, (498), 90 states have return successors, (511), 496 states have call predecessors, (511), 498 states have call successors, (511) [2021-11-02 23:35:11,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36298 states to 36298 states and 48872 transitions. [2021-11-02 23:35:11,293 INFO L78 Accepts]: Start accepts. Automaton has 36298 states and 48872 transitions. Word has length 210 [2021-11-02 23:35:11,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:35:11,293 INFO L470 AbstractCegarLoop]: Abstraction has 36298 states and 48872 transitions. [2021-11-02 23:35:11,294 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) [2021-11-02 23:35:11,295 INFO L276 IsEmpty]: Start isEmpty. Operand 36298 states and 48872 transitions. [2021-11-02 23:35:11,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-02 23:35:11,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:35:11,301 INFO L514 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] [2021-11-02 23:35:11,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 23:35:11,301 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)] === [2021-11-02 23:35:11,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:35:11,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1908348413, now seen corresponding path program 1 times [2021-11-02 23:35:11,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:35:11,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176376526] [2021-11-02 23:35:11,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:35:11,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:35:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:35:11,700 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-02 23:35:11,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:35:11,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176376526] [2021-11-02 23:35:11,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176376526] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:35:11,701 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:35:11,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 23:35:11,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17531528] [2021-11-02 23:35:11,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:35:11,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:35:11,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:35:11,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:35:11,702 INFO L87 Difference]: Start difference. First operand 36298 states and 48872 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) [2021-11-02 23:35:12,866 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:35:18,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:36:01,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:36:01,553 INFO L93 Difference]: Finished difference Result 72424 states and 97698 transitions. [2021-11-02 23:36:01,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:36:01,554 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 [2021-11-02 23:36:01,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:36:01,613 INFO L225 Difference]: With dead ends: 72424 [2021-11-02 23:36:01,614 INFO L226 Difference]: Without dead ends: 36322 [2021-11-02 23:36:01,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.93ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:36:01,662 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 12645 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 12674 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39322.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12694 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 12720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.40ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 12674 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48470.95ms IncrementalHoareTripleChecker+Time [2021-11-02 23:36:01,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12694 Valid, 279 Invalid, 12720 Unknown, 0 Unchecked, 44.40ms Time], IncrementalHoareTripleChecker [45 Valid, 12674 Invalid, 1 Unknown, 0 Unchecked, 48470.95ms Time] [2021-11-02 23:36:01,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36322 states. [2021-11-02 23:36:02,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36322 to 36301. [2021-11-02 23:36:02,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36301 states, 35666 states have (on average 1.3374922895755061) internal successors, (47703), 35714 states have internal predecessors, (47703), 498 states have call successors, (498), 90 states have call predecessors, (498), 91 states have return successors, (544), 496 states have call predecessors, (544), 498 states have call successors, (544) [2021-11-02 23:36:02,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36301 states to 36301 states and 48745 transitions. [2021-11-02 23:36:02,259 INFO L78 Accepts]: Start accepts. Automaton has 36301 states and 48745 transitions. Word has length 232 [2021-11-02 23:36:02,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:36:02,259 INFO L470 AbstractCegarLoop]: Abstraction has 36301 states and 48745 transitions. [2021-11-02 23:36:02,260 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) [2021-11-02 23:36:02,260 INFO L276 IsEmpty]: Start isEmpty. Operand 36301 states and 48745 transitions. [2021-11-02 23:36:02,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-02 23:36:02,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:36:02,265 INFO L514 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] [2021-11-02 23:36:02,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-02 23:36:02,266 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)] === [2021-11-02 23:36:02,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:36:02,266 INFO L85 PathProgramCache]: Analyzing trace with hash 970706135, now seen corresponding path program 1 times [2021-11-02 23:36:02,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:36:02,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273724497] [2021-11-02 23:36:02,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:36:02,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:36:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:36:02,722 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-02 23:36:02,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:36:02,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273724497] [2021-11-02 23:36:02,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273724497] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:36:02,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:36:02,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:36:02,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674259770] [2021-11-02 23:36:02,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:36:02,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:36:02,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:36:02,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:36:02,727 INFO L87 Difference]: Start difference. First operand 36301 states and 48745 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) [2021-11-02 23:36:56,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:36:56,368 INFO L93 Difference]: Finished difference Result 72406 states and 97270 transitions. [2021-11-02 23:36:56,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:36:56,369 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 [2021-11-02 23:36:56,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:36:56,443 INFO L225 Difference]: With dead ends: 72406 [2021-11-02 23:36:56,444 INFO L226 Difference]: Without dead ends: 36301 [2021-11-02 23:36:56,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.77ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:36:56,490 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 25042 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12624 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41021.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25042 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 13130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 144.89ms SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 12624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51950.84ms IncrementalHoareTripleChecker+Time [2021-11-02 23:36:56,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25042 Valid, 230 Invalid, 13130 Unknown, 0 Unchecked, 144.89ms Time], IncrementalHoareTripleChecker [506 Valid, 12624 Invalid, 0 Unknown, 0 Unchecked, 51950.84ms Time] [2021-11-02 23:36:56,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36301 states. [2021-11-02 23:36:57,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36301 to 36301. [2021-11-02 23:36:57,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36301 states, 35666 states have (on average 1.3329501486009083) internal successors, (47541), 35714 states have internal predecessors, (47541), 498 states have call successors, (498), 90 states have call predecessors, (498), 91 states have return successors, (544), 496 states have call predecessors, (544), 498 states have call successors, (544) [2021-11-02 23:36:57,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36301 states to 36301 states and 48583 transitions. [2021-11-02 23:36:57,284 INFO L78 Accepts]: Start accepts. Automaton has 36301 states and 48583 transitions. Word has length 233 [2021-11-02 23:36:57,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:36:57,284 INFO L470 AbstractCegarLoop]: Abstraction has 36301 states and 48583 transitions. [2021-11-02 23:36:57,285 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) [2021-11-02 23:36:57,285 INFO L276 IsEmpty]: Start isEmpty. Operand 36301 states and 48583 transitions. [2021-11-02 23:36:57,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-02 23:36:57,292 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:36:57,292 INFO L514 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] [2021-11-02 23:36:57,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-02 23:36:57,293 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)] === [2021-11-02 23:36:57,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:36:57,293 INFO L85 PathProgramCache]: Analyzing trace with hash 27232862, now seen corresponding path program 1 times [2021-11-02 23:36:57,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:36:57,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594000052] [2021-11-02 23:36:57,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:36:57,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:36:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:36:57,839 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-02 23:36:57,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:36:57,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594000052] [2021-11-02 23:36:57,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594000052] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:36:57,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:36:57,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:36:57,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099627147] [2021-11-02 23:36:57,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:36:57,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:36:57,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:36:57,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:36:57,840 INFO L87 Difference]: Start difference. First operand 36301 states and 48583 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) [2021-11-02 23:36:59,903 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:37:05,683 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:38:14,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:38:14,002 INFO L93 Difference]: Finished difference Result 99140 states and 132104 transitions. [2021-11-02 23:38:14,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 23:38:14,002 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 [2021-11-02 23:38:14,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:38:14,119 INFO L225 Difference]: With dead ends: 99140 [2021-11-02 23:38:14,119 INFO L226 Difference]: Without dead ends: 63035 [2021-11-02 23:38:14,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.48ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:38:14,174 INFO L933 BasicCegarLoop]: 469 mSDtfsCounter, 30201 mSDsluCounter, 9021 mSDsCounter, 0 mSdLazyCounter, 25332 mSolverCounterSat, 488 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61691.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30244 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 25822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 128.65ms SdHoareTripleChecker+Time, 488 IncrementalHoareTripleChecker+Valid, 25332 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73586.28ms IncrementalHoareTripleChecker+Time [2021-11-02 23:38:14,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30244 Valid, 469 Invalid, 25822 Unknown, 0 Unchecked, 128.65ms Time], IncrementalHoareTripleChecker [488 Valid, 25332 Invalid, 2 Unknown, 0 Unchecked, 73586.28ms Time] [2021-11-02 23:38:14,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63035 states. [2021-11-02 23:38:15,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63035 to 62924. [2021-11-02 23:38:15,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62924 states, 61760 states have (on average 1.3161917098445597) internal successors, (81288), 61817 states have internal predecessors, (81288), 930 states have call successors, (930), 180 states have call predecessors, (930), 188 states have return successors, (1250), 926 states have call predecessors, (1250), 930 states have call successors, (1250) [2021-11-02 23:38:15,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62924 states to 62924 states and 83468 transitions. [2021-11-02 23:38:15,726 INFO L78 Accepts]: Start accepts. Automaton has 62924 states and 83468 transitions. Word has length 234 [2021-11-02 23:38:15,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:38:15,727 INFO L470 AbstractCegarLoop]: Abstraction has 62924 states and 83468 transitions. [2021-11-02 23:38:15,727 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) [2021-11-02 23:38:15,727 INFO L276 IsEmpty]: Start isEmpty. Operand 62924 states and 83468 transitions. [2021-11-02 23:38:15,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-02 23:38:15,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:38:15,732 INFO L514 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] [2021-11-02 23:38:15,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-02 23:38:15,732 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)] === [2021-11-02 23:38:15,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:38:15,733 INFO L85 PathProgramCache]: Analyzing trace with hash 844481426, now seen corresponding path program 1 times [2021-11-02 23:38:15,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:38:15,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681861578] [2021-11-02 23:38:15,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:38:15,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:38:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:38:16,045 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-02 23:38:16,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:38:16,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681861578] [2021-11-02 23:38:16,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681861578] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:38:16,046 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:38:16,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:38:16,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383416789] [2021-11-02 23:38:16,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:38:16,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:38:16,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:38:16,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:38:16,047 INFO L87 Difference]: Start difference. First operand 62924 states and 83468 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) [2021-11-02 23:38:17,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:39:08,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:39:08,326 INFO L93 Difference]: Finished difference Result 99050 states and 131808 transitions. [2021-11-02 23:39:08,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:39:08,327 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 [2021-11-02 23:39:08,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:39:08,484 INFO L225 Difference]: With dead ends: 99050 [2021-11-02 23:39:08,484 INFO L226 Difference]: Without dead ends: 62924 [2021-11-02 23:39:08,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.53ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:39:08,559 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 24856 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12532 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39801.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24856 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 13038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 115.11ms SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 12532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49826.58ms IncrementalHoareTripleChecker+Time [2021-11-02 23:39:08,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24856 Valid, 230 Invalid, 13038 Unknown, 0 Unchecked, 115.11ms Time], IncrementalHoareTripleChecker [506 Valid, 12532 Invalid, 0 Unknown, 0 Unchecked, 49826.58ms Time] [2021-11-02 23:39:08,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62924 states. [2021-11-02 23:39:10,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62924 to 62924. [2021-11-02 23:39:10,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62924 states, 61760 states have (on average 1.313568652849741) internal successors, (81126), 61817 states have internal predecessors, (81126), 930 states have call successors, (930), 180 states have call predecessors, (930), 188 states have return successors, (1250), 926 states have call predecessors, (1250), 930 states have call successors, (1250) [2021-11-02 23:39:10,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62924 states to 62924 states and 83306 transitions. [2021-11-02 23:39:10,449 INFO L78 Accepts]: Start accepts. Automaton has 62924 states and 83306 transitions. Word has length 235 [2021-11-02 23:39:10,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:39:10,449 INFO L470 AbstractCegarLoop]: Abstraction has 62924 states and 83306 transitions. [2021-11-02 23:39:10,449 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) [2021-11-02 23:39:10,450 INFO L276 IsEmpty]: Start isEmpty. Operand 62924 states and 83306 transitions. [2021-11-02 23:39:10,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-02 23:39:10,455 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:39:10,455 INFO L514 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] [2021-11-02 23:39:10,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-02 23:39:10,456 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)] === [2021-11-02 23:39:10,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:39:10,456 INFO L85 PathProgramCache]: Analyzing trace with hash 409532089, now seen corresponding path program 1 times [2021-11-02 23:39:10,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:39:10,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445837938] [2021-11-02 23:39:10,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:39:10,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:39:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:39:10,869 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-02 23:39:10,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:39:10,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445837938] [2021-11-02 23:39:10,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445837938] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:39:10,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:39:10,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:39:10,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192651552] [2021-11-02 23:39:10,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:39:10,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:39:10,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:39:10,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:39:10,870 INFO L87 Difference]: Start difference. First operand 62924 states and 83306 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) [2021-11-02 23:39:12,330 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:40:08,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:40:08,896 INFO L93 Difference]: Finished difference Result 99050 states and 131484 transitions. [2021-11-02 23:40:08,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:40:08,898 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 [2021-11-02 23:40:08,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:40:09,017 INFO L225 Difference]: With dead ends: 99050 [2021-11-02 23:40:09,018 INFO L226 Difference]: Without dead ends: 62924 [2021-11-02 23:40:09,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.26ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:40:09,073 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 24763 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12486 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43502.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24763 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 12992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 126.59ms SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 12486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55240.00ms IncrementalHoareTripleChecker+Time [2021-11-02 23:40:09,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24763 Valid, 230 Invalid, 12992 Unknown, 0 Unchecked, 126.59ms Time], IncrementalHoareTripleChecker [506 Valid, 12486 Invalid, 0 Unknown, 0 Unchecked, 55240.00ms Time] [2021-11-02 23:40:09,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62924 states. Killed by 15