./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.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 ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 18:50:08,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 18:50:08,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 18:50:08,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 18:50:08,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 18:50:08,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 18:50:08,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 18:50:08,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 18:50:08,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 18:50:08,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 18:50:08,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 18:50:08,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 18:50:08,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 18:50:08,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 18:50:08,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 18:50:08,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 18:50:08,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 18:50:08,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 18:50:08,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 18:50:08,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 18:50:08,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 18:50:08,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 18:50:08,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 18:50:08,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 18:50:08,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 18:50:08,073 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 18:50:08,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 18:50:08,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 18:50:08,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 18:50:08,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 18:50:08,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 18:50:08,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 18:50:08,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 18:50:08,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 18:50:08,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 18:50:08,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 18:50:08,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 18:50:08,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 18:50:08,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 18:50:08,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 18:50:08,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 18:50:08,084 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 18:50:08,111 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 18:50:08,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 18:50:08,116 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 18:50:08,116 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 18:50:08,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 18:50:08,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 18:50:08,117 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 18:50:08,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 18:50:08,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 18:50:08,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 18:50:08,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 18:50:08,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 18:50:08,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 18:50:08,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 18:50:08,120 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 18:50:08,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 18:50:08,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 18:50:08,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 18:50:08,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 18:50:08,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 18:50:08,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 18:50:08,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 18:50:08,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 18:50:08,121 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 18:50:08,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 18:50:08,121 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 18:50:08,121 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 18:50:08,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 18:50:08,122 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 18:50:08,122 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e [2021-11-07 18:50:08,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 18:50:08,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 18:50:08,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 18:50:08,311 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 18:50:08,312 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 18:50:08,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2021-11-07 18:50:08,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b95ca4a43/55affe266d8e45998ebc76f3fbe1d5ba/FLAGff499aa85 [2021-11-07 18:50:09,103 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 18:50:09,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2021-11-07 18:50:09,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b95ca4a43/55affe266d8e45998ebc76f3fbe1d5ba/FLAGff499aa85 [2021-11-07 18:50:09,384 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b95ca4a43/55affe266d8e45998ebc76f3fbe1d5ba [2021-11-07 18:50:09,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 18:50:09,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 18:50:09,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 18:50:09,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 18:50:09,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 18:50:09,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:50:09" (1/1) ... [2021-11-07 18:50:09,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@177cdb27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:50:09, skipping insertion in model container [2021-11-07 18:50:09,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:50:09" (1/1) ... [2021-11-07 18:50:09,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 18:50:09,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 18:50:11,823 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2021-11-07 18:50:11,825 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2021-11-07 18:50:11,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 18:50:11,853 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 18:50:12,110 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2021-11-07 18:50:12,111 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2021-11-07 18:50:12,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 18:50:12,225 INFO L208 MainTranslator]: Completed translation [2021-11-07 18:50:12,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:50:12 WrapperNode [2021-11-07 18:50:12,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 18:50:12,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 18:50:12,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 18:50:12,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 18:50:12,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:50:12" (1/1) ... [2021-11-07 18:50:12,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:50:12" (1/1) ... [2021-11-07 18:50:14,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 18:50:14,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 18:50:14,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 18:50:14,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 18:50:14,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:50:12" (1/1) ... [2021-11-07 18:50:14,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:50:12" (1/1) ... [2021-11-07 18:50:15,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:50:12" (1/1) ... [2021-11-07 18:50:15,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:50:12" (1/1) ... [2021-11-07 18:50:16,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:50:12" (1/1) ... [2021-11-07 18:50:16,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:50:12" (1/1) ... [2021-11-07 18:50:17,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:50:12" (1/1) ... [2021-11-07 18:50:17,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 18:50:17,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 18:50:17,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 18:50:17,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 18:50:17,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:50:12" (1/1) ... [2021-11-07 18:50:17,478 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 18:50:17,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 18:50:17,508 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 18:50:17,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 18:50:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 18:50:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 18:50:17,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 18:50:17,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 18:50:17,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 18:50:17,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 18:50:17,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 18:50:17,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 18:50:17,534 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_access [2021-11-07 18:50:17,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_access [2021-11-07 18:50:17,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 18:50:17,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 18:50:17,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 18:50:17,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 18:50:17,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 18:50:17,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 18:50:17,535 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_mem [2021-11-07 18:50:17,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_mem [2021-11-07 18:50:17,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 18:51:19,154 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2021-11-07 18:51:19,155 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 18:51:19,155 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-07 18:51:19,155 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 18:51:19,155 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-07 18:51:19,155 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 18:51:19,156 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-07 18:51:19,157 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 18:51:19,157 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 18:51:19,275 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 18:51:19,276 INFO L299 CfgBuilder]: Removed 24635 assume(true) statements. [2021-11-07 18:51:19,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:51:19 BoogieIcfgContainer [2021-11-07 18:51:19,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 18:51:19,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 18:51:19,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 18:51:19,295 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 18:51:19,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:50:09" (1/3) ... [2021-11-07 18:51:19,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47b4a645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:51:19, skipping insertion in model container [2021-11-07 18:51:19,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:50:12" (2/3) ... [2021-11-07 18:51:19,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47b4a645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:51:19, skipping insertion in model container [2021-11-07 18:51:19,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:51:19" (3/3) ... [2021-11-07 18:51:19,297 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2021-11-07 18:51:19,301 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 18:51:19,301 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-11-07 18:51:19,371 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 18:51:19,387 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 18:51:19,387 INFO L340 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-11-07 18:51:19,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 18863 states, 18808 states have (on average 1.3090706082518078) internal successors, (24621), 18837 states have internal predecessors, (24621), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-07 18:51:19,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 18:51:19,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:51:19,597 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] [2021-11-07 18:51:19,598 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 18:51:19,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:51:19,602 INFO L85 PathProgramCache]: Analyzing trace with hash -900611428, now seen corresponding path program 1 times [2021-11-07 18:51:19,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:51:19,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346331924] [2021-11-07 18:51:19,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:51:19,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:51:19,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:51:20,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:51:20,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:51:20,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346331924] [2021-11-07 18:51:20,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346331924] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:51:20,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:51:20,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:51:20,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051989956] [2021-11-07 18:51:20,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:51:20,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:51:20,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:51:20,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:51:20,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:51:20,230 INFO L87 Difference]: Start difference. First operand has 18863 states, 18808 states have (on average 1.3090706082518078) internal successors, (24621), 18837 states have internal predecessors, (24621), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:51:22,298 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 [] [2021-11-07 18:51:23,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:51:23,356 INFO L93 Difference]: Finished difference Result 46488 states and 60793 transitions. [2021-11-07 18:51:23,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:51:23,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2021-11-07 18:51:23,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:51:23,478 INFO L225 Difference]: With dead ends: 46488 [2021-11-07 18:51:23,479 INFO L226 Difference]: Without dead ends: 26481 [2021-11-07 18:51:23,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.93ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:51:23,531 INFO L933 BasicCegarLoop]: 24318 mSDtfsCounter, 11680 mSDsluCounter, 24239 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2135.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11680 SdHoareTripleChecker+Valid, 48557 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 77.42ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2293.31ms IncrementalHoareTripleChecker+Time [2021-11-07 18:51:23,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11680 Valid, 48557 Invalid, 100 Unknown, 0 Unchecked, 77.42ms Time], IncrementalHoareTripleChecker [21 Valid, 78 Invalid, 1 Unknown, 0 Unchecked, 2293.31ms Time] [2021-11-07 18:51:23,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26481 states. [2021-11-07 18:51:24,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26481 to 26449. [2021-11-07 18:51:24,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26449 states, 26383 states have (on average 1.2663457529469735) internal successors, (33410), 26412 states have internal predecessors, (33410), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-07 18:51:24,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26449 states to 26449 states and 33474 transitions. [2021-11-07 18:51:24,249 INFO L78 Accepts]: Start accepts. Automaton has 26449 states and 33474 transitions. Word has length 78 [2021-11-07 18:51:24,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:51:24,250 INFO L470 AbstractCegarLoop]: Abstraction has 26449 states and 33474 transitions. [2021-11-07 18:51:24,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:51:24,251 INFO L276 IsEmpty]: Start isEmpty. Operand 26449 states and 33474 transitions. [2021-11-07 18:51:24,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-07 18:51:24,255 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:51:24,255 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] [2021-11-07 18:51:24,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 18:51:24,256 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 18:51:24,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:51:24,256 INFO L85 PathProgramCache]: Analyzing trace with hash 735125227, now seen corresponding path program 1 times [2021-11-07 18:51:24,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:51:24,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396030066] [2021-11-07 18:51:24,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:51:24,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:51:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:51:24,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:51:24,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:51:24,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396030066] [2021-11-07 18:51:24,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396030066] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:51:24,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:51:24,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:51:24,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025511585] [2021-11-07 18:51:24,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:51:24,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:51:24,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:51:24,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:51:24,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:51:24,548 INFO L87 Difference]: Start difference. First operand 26449 states and 33474 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:51:26,602 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 [] [2021-11-07 18:51:27,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:51:27,675 INFO L93 Difference]: Finished difference Result 62696 states and 79491 transitions. [2021-11-07 18:51:27,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:51:27,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 105 [2021-11-07 18:51:27,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:51:27,773 INFO L225 Difference]: With dead ends: 62696 [2021-11-07 18:51:27,773 INFO L226 Difference]: Without dead ends: 36371 [2021-11-07 18:51:27,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.95ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:51:27,975 INFO L933 BasicCegarLoop]: 23088 mSDtfsCounter, 12376 mSDsluCounter, 22591 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2131.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12376 SdHoareTripleChecker+Valid, 45679 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.13ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2277.89ms IncrementalHoareTripleChecker+Time [2021-11-07 18:51:27,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12376 Valid, 45679 Invalid, 108 Unknown, 0 Unchecked, 48.13ms Time], IncrementalHoareTripleChecker [17 Valid, 90 Invalid, 1 Unknown, 0 Unchecked, 2277.89ms Time] [2021-11-07 18:51:28,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36371 states. [2021-11-07 18:51:28,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36371 to 36327. [2021-11-07 18:51:28,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36327 states, 36243 states have (on average 1.2693209723256904) internal successors, (46004), 36272 states have internal predecessors, (46004), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2021-11-07 18:51:28,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36327 states to 36327 states and 46100 transitions. [2021-11-07 18:51:28,736 INFO L78 Accepts]: Start accepts. Automaton has 36327 states and 46100 transitions. Word has length 105 [2021-11-07 18:51:28,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:51:28,738 INFO L470 AbstractCegarLoop]: Abstraction has 36327 states and 46100 transitions. [2021-11-07 18:51:28,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:51:28,739 INFO L276 IsEmpty]: Start isEmpty. Operand 36327 states and 46100 transitions. [2021-11-07 18:51:28,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-07 18:51:28,743 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:51:28,744 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] [2021-11-07 18:51:28,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 18:51:28,744 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 18:51:28,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:51:28,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1816046720, now seen corresponding path program 1 times [2021-11-07 18:51:28,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:51:28,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636359820] [2021-11-07 18:51:28,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:51:28,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:51:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:51:28,986 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:51:28,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:51:28,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636359820] [2021-11-07 18:51:28,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636359820] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:51:28,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:51:28,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:51:28,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817968520] [2021-11-07 18:51:28,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:51:28,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:51:28,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:51:28,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:51:28,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:51:28,989 INFO L87 Difference]: Start difference. First operand 36327 states and 46100 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:51:31,037 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 [] [2021-11-07 18:51:32,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:51:32,077 INFO L93 Difference]: Finished difference Result 81325 states and 103168 transitions. [2021-11-07 18:51:32,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:51:32,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-07 18:51:32,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:51:32,182 INFO L225 Difference]: With dead ends: 81325 [2021-11-07 18:51:32,183 INFO L226 Difference]: Without dead ends: 45122 [2021-11-07 18:51:32,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:51:32,231 INFO L933 BasicCegarLoop]: 33473 mSDtfsCounter, 10799 mSDsluCounter, 22600 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2103.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10799 SdHoareTripleChecker+Valid, 56073 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.68ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2272.36ms IncrementalHoareTripleChecker+Time [2021-11-07 18:51:32,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10799 Valid, 56073 Invalid, 86 Unknown, 0 Unchecked, 33.68ms Time], IncrementalHoareTripleChecker [15 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 2272.36ms Time] [2021-11-07 18:51:32,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45122 states. [2021-11-07 18:51:33,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45122 to 45086. [2021-11-07 18:51:33,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45086 states, 44991 states have (on average 1.2678313440465871) internal successors, (57041), 45020 states have internal predecessors, (57041), 57 states have call successors, (57), 8 states have call predecessors, (57), 8 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2021-11-07 18:51:33,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45086 states to 45086 states and 57155 transitions. [2021-11-07 18:51:33,147 INFO L78 Accepts]: Start accepts. Automaton has 45086 states and 57155 transitions. Word has length 112 [2021-11-07 18:51:33,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:51:33,147 INFO L470 AbstractCegarLoop]: Abstraction has 45086 states and 57155 transitions. [2021-11-07 18:51:33,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:51:33,148 INFO L276 IsEmpty]: Start isEmpty. Operand 45086 states and 57155 transitions. [2021-11-07 18:51:33,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-07 18:51:33,155 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:51:33,155 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] [2021-11-07 18:51:33,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 18:51:33,156 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 18:51:33,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:51:33,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1934852224, now seen corresponding path program 1 times [2021-11-07 18:51:33,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:51:33,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090738440] [2021-11-07 18:51:33,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:51:33,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:51:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:51:33,512 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:51:33,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:51:33,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090738440] [2021-11-07 18:51:33,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090738440] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:51:33,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:51:33,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:51:33,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570793274] [2021-11-07 18:51:33,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:51:33,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:51:33,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:51:33,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:51:33,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:51:33,515 INFO L87 Difference]: Start difference. First operand 45086 states and 57155 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:51:35,610 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 18:51:36,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:51:36,432 INFO L93 Difference]: Finished difference Result 90226 states and 114396 transitions. [2021-11-07 18:51:36,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:51:36,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-07 18:51:36,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:51:36,539 INFO L225 Difference]: With dead ends: 90226 [2021-11-07 18:51:36,539 INFO L226 Difference]: Without dead ends: 45264 [2021-11-07 18:51:36,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.72ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:51:36,607 INFO L933 BasicCegarLoop]: 22664 mSDtfsCounter, 240 mSDsluCounter, 22626 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2108.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 45290 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.80ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2246.05ms IncrementalHoareTripleChecker+Time [2021-11-07 18:51:36,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 45290 Invalid, 28 Unknown, 0 Unchecked, 20.80ms Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 1 Unknown, 0 Unchecked, 2246.05ms Time] [2021-11-07 18:51:36,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45264 states. [2021-11-07 18:51:37,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45264 to 45264. [2021-11-07 18:51:37,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45264 states, 45169 states have (on average 1.2677278664570835) internal successors, (57262), 45198 states have internal predecessors, (57262), 57 states have call successors, (57), 8 states have call predecessors, (57), 8 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2021-11-07 18:51:37,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45264 states to 45264 states and 57376 transitions. [2021-11-07 18:51:37,487 INFO L78 Accepts]: Start accepts. Automaton has 45264 states and 57376 transitions. Word has length 117 [2021-11-07 18:51:37,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:51:37,488 INFO L470 AbstractCegarLoop]: Abstraction has 45264 states and 57376 transitions. [2021-11-07 18:51:37,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:51:37,488 INFO L276 IsEmpty]: Start isEmpty. Operand 45264 states and 57376 transitions. [2021-11-07 18:51:37,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-07 18:51:37,494 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:51:37,494 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-07 18:51:37,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 18:51:37,495 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 18:51:37,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:51:37,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1712842836, now seen corresponding path program 1 times [2021-11-07 18:51:37,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:51:37,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44089535] [2021-11-07 18:51:37,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:51:37,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:51:37,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:51:37,699 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:51:37,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:51:37,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44089535] [2021-11-07 18:51:37,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44089535] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:51:37,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:51:37,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:51:37,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920306144] [2021-11-07 18:51:37,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:51:37,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:51:37,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:51:37,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:51:37,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:51:37,704 INFO L87 Difference]: Start difference. First operand 45264 states and 57376 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:51:39,755 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 [] [2021-11-07 18:51:41,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:51:41,207 INFO L93 Difference]: Finished difference Result 134992 states and 171182 transitions. [2021-11-07 18:51:41,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:51:41,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 148 [2021-11-07 18:51:41,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:51:41,401 INFO L225 Difference]: With dead ends: 134992 [2021-11-07 18:51:41,402 INFO L226 Difference]: Without dead ends: 90030 [2021-11-07 18:51:41,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.71ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:51:41,485 INFO L933 BasicCegarLoop]: 33453 mSDtfsCounter, 22481 mSDsluCounter, 22648 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2066.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22481 SdHoareTripleChecker+Valid, 56101 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.08ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2195.42ms IncrementalHoareTripleChecker+Time [2021-11-07 18:51:41,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22481 Valid, 56101 Invalid, 25 Unknown, 0 Unchecked, 43.08ms Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 2195.42ms Time] [2021-11-07 18:51:41,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90030 states. [2021-11-07 18:51:43,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90030 to 89970. [2021-11-07 18:51:43,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89970 states, 89810 states have (on average 1.2681215900233826) internal successors, (113890), 89839 states have internal predecessors, (113890), 114 states have call successors, (114), 16 states have call predecessors, (114), 16 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2021-11-07 18:51:43,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89970 states to 89970 states and 114118 transitions. [2021-11-07 18:51:43,471 INFO L78 Accepts]: Start accepts. Automaton has 89970 states and 114118 transitions. Word has length 148 [2021-11-07 18:51:43,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:51:43,472 INFO L470 AbstractCegarLoop]: Abstraction has 89970 states and 114118 transitions. [2021-11-07 18:51:43,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:51:43,472 INFO L276 IsEmpty]: Start isEmpty. Operand 89970 states and 114118 transitions. [2021-11-07 18:51:43,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-07 18:51:43,481 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:51:43,482 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-07 18:51:43,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 18:51:43,482 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 18:51:43,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:51:43,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1220216662, now seen corresponding path program 1 times [2021-11-07 18:51:43,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:51:43,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355607706] [2021-11-07 18:51:43,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:51:43,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:51:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:51:43,848 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 18:51:43,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:51:43,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355607706] [2021-11-07 18:51:43,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355607706] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:51:43,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:51:43,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:51:43,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944497761] [2021-11-07 18:51:43,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:51:43,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:51:43,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:51:43,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:51:43,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:51:43,851 INFO L87 Difference]: Start difference. First operand 89970 states and 114118 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:51:45,900 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 [] [2021-11-07 18:51:48,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:51:48,096 INFO L93 Difference]: Finished difference Result 224410 states and 284672 transitions. [2021-11-07 18:51:48,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 18:51:48,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 148 [2021-11-07 18:51:48,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:51:48,416 INFO L225 Difference]: With dead ends: 224410 [2021-11-07 18:51:48,417 INFO L226 Difference]: Without dead ends: 134523 [2021-11-07 18:51:48,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.71ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:51:48,570 INFO L933 BasicCegarLoop]: 45150 mSDtfsCounter, 22477 mSDsluCounter, 22652 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2063.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22477 SdHoareTripleChecker+Valid, 67802 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 177.99ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2239.41ms IncrementalHoareTripleChecker+Time [2021-11-07 18:51:48,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22477 Valid, 67802 Invalid, 26 Unknown, 0 Unchecked, 177.99ms Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 2239.41ms Time] [2021-11-07 18:51:48,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134523 states. [2021-11-07 18:51:51,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134523 to 134463. [2021-11-07 18:51:51,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134463 states, 134238 states have (on average 1.2682846883892787) internal successors, (170252), 134267 states have internal predecessors, (170252), 171 states have call successors, (171), 24 states have call predecessors, (171), 24 states have return successors, (171), 171 states have call predecessors, (171), 171 states have call successors, (171) [2021-11-07 18:51:51,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134463 states to 134463 states and 170594 transitions. [2021-11-07 18:51:51,536 INFO L78 Accepts]: Start accepts. Automaton has 134463 states and 170594 transitions. Word has length 148 [2021-11-07 18:51:51,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:51:51,537 INFO L470 AbstractCegarLoop]: Abstraction has 134463 states and 170594 transitions. [2021-11-07 18:51:51,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:51:51,537 INFO L276 IsEmpty]: Start isEmpty. Operand 134463 states and 170594 transitions. [2021-11-07 18:51:51,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-07 18:51:51,546 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:51:51,546 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] [2021-11-07 18:51:51,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 18:51:51,546 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 18:51:51,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:51:51,547 INFO L85 PathProgramCache]: Analyzing trace with hash -465666424, now seen corresponding path program 1 times [2021-11-07 18:51:51,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:51:51,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118452624] [2021-11-07 18:51:51,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:51:51,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:51:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:51:51,726 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 18:51:51,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:51:51,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118452624] [2021-11-07 18:51:51,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118452624] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:51:51,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:51:51,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:51:51,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940397280] [2021-11-07 18:51:51,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:51:51,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 18:51:51,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:51:51,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 18:51:51,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 18:51:51,728 INFO L87 Difference]: Start difference. First operand 134463 states and 170594 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 18:51:53,779 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 []