./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-ethernet-sun-sunhme.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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.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 c097d45bf953c22cc618c35d7b4a2d8fd3613a03309b6d0b505b710dc0ccbe6f --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-03 02:16:30,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 02:16:30,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 02:16:30,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 02:16:30,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 02:16:30,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 02:16:30,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 02:16:30,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 02:16:30,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 02:16:30,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 02:16:30,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 02:16:30,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 02:16:30,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 02:16:30,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 02:16:30,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 02:16:30,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 02:16:30,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 02:16:30,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 02:16:30,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 02:16:30,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 02:16:30,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 02:16:30,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 02:16:30,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 02:16:30,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 02:16:30,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 02:16:30,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 02:16:30,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 02:16:30,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 02:16:30,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 02:16:30,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 02:16:30,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 02:16:30,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 02:16:30,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 02:16:30,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 02:16:30,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 02:16:30,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 02:16:30,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 02:16:30,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 02:16:30,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 02:16:30,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 02:16:30,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 02:16:30,474 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 02:16:30,494 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 02:16:30,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 02:16:30,495 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 02:16:30,495 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 02:16:30,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 02:16:30,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 02:16:30,496 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 02:16:30,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 02:16:30,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 02:16:30,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 02:16:30,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 02:16:30,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 02:16:30,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 02:16:30,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 02:16:30,498 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 02:16:30,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 02:16:30,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 02:16:30,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 02:16:30,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 02:16:30,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 02:16:30,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 02:16:30,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 02:16:30,499 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 02:16:30,499 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 02:16:30,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 02:16:30,500 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 02:16:30,500 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 02:16:30,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 02:16:30,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 02:16:30,501 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c097d45bf953c22cc618c35d7b4a2d8fd3613a03309b6d0b505b710dc0ccbe6f [2021-11-03 02:16:30,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 02:16:30,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 02:16:30,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 02:16:30,678 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 02:16:30,679 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 02:16:30,680 INFO L432 ainManager$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-ethernet-sun-sunhme.cil.i [2021-11-03 02:16:30,734 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbff2231e/cb76e935a9434596a54e68009567451e/FLAGfe3c9875c [2021-11-03 02:16:31,341 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 02:16:31,342 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-03 02:16:31,393 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbff2231e/cb76e935a9434596a54e68009567451e/FLAGfe3c9875c [2021-11-03 02:16:31,772 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbff2231e/cb76e935a9434596a54e68009567451e [2021-11-03 02:16:31,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 02:16:31,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 02:16:31,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 02:16:31,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 02:16:31,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 02:16:31,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:16:31" (1/1) ... [2021-11-03 02:16:31,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28942f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:31, skipping insertion in model container [2021-11-03 02:16:31,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:16:31" (1/1) ... [2021-11-03 02:16:31,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 02:16:31,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 02:16:33,487 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-ethernet-sun-sunhme.cil.i[348277,348290] [2021-11-03 02:16:33,493 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-ethernet-sun-sunhme.cil.i[348422,348435] [2021-11-03 02:16:33,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 02:16:33,542 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 02:16:33,817 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-ethernet-sun-sunhme.cil.i[348277,348290] [2021-11-03 02:16:33,818 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-ethernet-sun-sunhme.cil.i[348422,348435] [2021-11-03 02:16:33,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 02:16:33,924 INFO L208 MainTranslator]: Completed translation [2021-11-03 02:16:33,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:33 WrapperNode [2021-11-03 02:16:33,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 02:16:33,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 02:16:33,926 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 02:16:33,926 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 02:16:33,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:33" (1/1) ... [2021-11-03 02:16:33,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:33" (1/1) ... [2021-11-03 02:16:40,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 02:16:40,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 02:16:40,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 02:16:40,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 02:16:40,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:33" (1/1) ... [2021-11-03 02:16:40,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:33" (1/1) ... [2021-11-03 02:16:40,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:33" (1/1) ... [2021-11-03 02:16:40,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:33" (1/1) ... [2021-11-03 02:16:41,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:33" (1/1) ... [2021-11-03 02:16:42,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:33" (1/1) ... [2021-11-03 02:16:42,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:33" (1/1) ... [2021-11-03 02:16:43,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 02:16:43,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 02:16:43,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 02:16:43,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 02:16:43,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:33" (1/1) ... [2021-11-03 02:16:43,096 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 02:16:43,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 02:16:43,131 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) [2021-11-03 02:16:43,145 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 [2021-11-03 02:16:43,162 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-03 02:16:43,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 02:16:43,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-03 02:16:43,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-03 02:16:43,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 02:16:43,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 02:16:43,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 02:16:43,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 02:16:43,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 02:16:43,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 02:16:43,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 02:16:43,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 02:16:43,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 02:16:43,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 02:16:43,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 02:16:43,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 02:16:57,645 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-03 02:16:57,645 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-03 02:16:57,646 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-03 02:16:57,646 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-03 02:16:57,650 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 02:16:57,651 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-03 02:16:57,702 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 02:16:57,703 INFO L299 CfgBuilder]: Removed 36416 assume(true) statements. [2021-11-03 02:16:57,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:16:57 BoogieIcfgContainer [2021-11-03 02:16:57,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 02:16:57,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 02:16:57,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 02:16:57,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 02:16:57,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:16:31" (1/3) ... [2021-11-03 02:16:57,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eec3d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:16:57, skipping insertion in model container [2021-11-03 02:16:57,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:33" (2/3) ... [2021-11-03 02:16:57,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eec3d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:16:57, skipping insertion in model container [2021-11-03 02:16:57,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:16:57" (3/3) ... [2021-11-03 02:16:57,726 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-03 02:16:57,730 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 02:16:57,730 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-03 02:16:57,811 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 02:16:57,815 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 [2021-11-03 02:16:57,815 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-03 02:16:58,009 INFO L276 IsEmpty]: Start isEmpty. Operand has 23391 states, 23381 states have (on average 1.207989393096959) internal successors, (28244), 23390 states have internal predecessors, (28244), 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) [2021-11-03 02:16:58,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-03 02:16:58,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 02:16:58,025 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] [2021-11-03 02:16:58,026 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 02:16:58,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 02:16:58,029 INFO L85 PathProgramCache]: Analyzing trace with hash 633292136, now seen corresponding path program 1 times [2021-11-03 02:16:58,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 02:16:58,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486600121] [2021-11-03 02:16:58,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 02:16:58,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 02:16:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 02:16:58,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 02:16:58,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 02:16:58,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486600121] [2021-11-03 02:16:58,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486600121] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 02:16:58,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 02:16:58,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 02:16:58,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740594272] [2021-11-03 02:16:58,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 02:16:58,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 02:16:58,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 02:16:58,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:16:58,689 INFO L87 Difference]: Start difference. First operand has 23391 states, 23381 states have (on average 1.207989393096959) internal successors, (28244), 23390 states have internal predecessors, (28244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-11-03 02:17:00,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:18:45,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 02:18:45,935 INFO L93 Difference]: Finished difference Result 67155 states and 81041 transitions. [2021-11-03 02:18:45,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 02:18:45,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2021-11-03 02:18:45,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 02:18:46,106 INFO L225 Difference]: With dead ends: 67155 [2021-11-03 02:18:46,107 INFO L226 Difference]: Without dead ends: 43434 [2021-11-03 02:18:46,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.15ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:18:46,160 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 24598 mSDsluCounter, 28137 mSDsCounter, 0 mSdLazyCounter, 56018 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94920.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24598 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 56038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 144.06ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 56018 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103937.72ms IncrementalHoareTripleChecker+Time [2021-11-03 02:18:46,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24598 Valid, 324 Invalid, 56038 Unknown, 0 Unchecked, 144.06ms Time], IncrementalHoareTripleChecker [19 Valid, 56018 Invalid, 1 Unknown, 0 Unchecked, 103937.72ms Time] [2021-11-03 02:18:46,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43434 states. [2021-11-03 02:18:46,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43434 to 43387. [2021-11-03 02:18:46,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43387 states, 43377 states have (on average 1.1995988657583512) internal successors, (52035), 43386 states have internal predecessors, (52035), 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) [2021-11-03 02:18:47,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43387 states to 43387 states and 52035 transitions. [2021-11-03 02:18:47,003 INFO L78 Accepts]: Start accepts. Automaton has 43387 states and 52035 transitions. Word has length 63 [2021-11-03 02:18:47,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 02:18:47,004 INFO L470 AbstractCegarLoop]: Abstraction has 43387 states and 52035 transitions. [2021-11-03 02:18:47,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-11-03 02:18:47,005 INFO L276 IsEmpty]: Start isEmpty. Operand 43387 states and 52035 transitions. [2021-11-03 02:18:47,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-03 02:18:47,010 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 02:18:47,011 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 02:18:47,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 02:18:47,011 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 02:18:47,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 02:18:47,012 INFO L85 PathProgramCache]: Analyzing trace with hash -2059571142, now seen corresponding path program 1 times [2021-11-03 02:18:47,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 02:18:47,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443121305] [2021-11-03 02:18:47,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 02:18:47,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 02:18:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 02:18:47,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 02:18:47,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 02:18:47,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443121305] [2021-11-03 02:18:47,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443121305] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 02:18:47,251 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 02:18:47,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 02:18:47,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194202013] [2021-11-03 02:18:47,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 02:18:47,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 02:18:47,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 02:18:47,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:18:47,253 INFO L87 Difference]: Start difference. First operand 43387 states and 52035 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 02:18:49,293 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:20:41,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 02:20:41,775 INFO L93 Difference]: Finished difference Result 106550 states and 127785 transitions. [2021-11-03 02:20:41,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 02:20:41,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-03 02:20:41,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 02:20:41,929 INFO L225 Difference]: With dead ends: 106550 [2021-11-03 02:20:41,929 INFO L226 Difference]: Without dead ends: 63231 [2021-11-03 02:20:41,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.37ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:20:41,996 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 13576 mSDsluCounter, 27740 mSDsCounter, 0 mSdLazyCounter, 59018 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 102315.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13576 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 59035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 146.15ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 59018 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 110689.06ms IncrementalHoareTripleChecker+Time [2021-11-03 02:20:41,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13576 Valid, 0 Invalid, 59035 Unknown, 0 Unchecked, 146.15ms Time], IncrementalHoareTripleChecker [16 Valid, 59018 Invalid, 1 Unknown, 0 Unchecked, 110689.06ms Time] [2021-11-03 02:20:42,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63231 states. [2021-11-03 02:20:43,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63231 to 63213. [2021-11-03 02:20:43,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63213 states, 63203 states have (on average 1.1990411847538882) internal successors, (75783), 63212 states have internal predecessors, (75783), 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) [2021-11-03 02:20:43,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63213 states to 63213 states and 75783 transitions. [2021-11-03 02:20:43,318 INFO L78 Accepts]: Start accepts. Automaton has 63213 states and 75783 transitions. Word has length 72 [2021-11-03 02:20:43,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 02:20:43,319 INFO L470 AbstractCegarLoop]: Abstraction has 63213 states and 75783 transitions. [2021-11-03 02:20:43,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 02:20:43,319 INFO L276 IsEmpty]: Start isEmpty. Operand 63213 states and 75783 transitions. [2021-11-03 02:20:43,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-03 02:20:43,331 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 02:20:43,331 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] [2021-11-03 02:20:43,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 02:20:43,331 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 02:20:43,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 02:20:43,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1736663696, now seen corresponding path program 1 times [2021-11-03 02:20:43,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 02:20:43,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341009912] [2021-11-03 02:20:43,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 02:20:43,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 02:20:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 02:20:43,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 02:20:43,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 02:20:43,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341009912] [2021-11-03 02:20:43,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341009912] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 02:20:43,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 02:20:43,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 02:20:43,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526761821] [2021-11-03 02:20:43,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 02:20:43,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 02:20:43,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 02:20:43,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:20:43,775 INFO L87 Difference]: Start difference. First operand 63213 states and 75783 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2021-11-03 02:20:45,819 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:23:08,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 02:23:08,939 INFO L93 Difference]: Finished difference Result 173851 states and 208510 transitions. [2021-11-03 02:23:08,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 02:23:08,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-03 02:23:08,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 02:23:09,421 INFO L225 Difference]: With dead ends: 173851 [2021-11-03 02:23:09,421 INFO L226 Difference]: Without dead ends: 110706 [2021-11-03 02:23:09,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.98ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:23:09,580 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 23055 mSDsluCounter, 27692 mSDsCounter, 0 mSdLazyCounter, 55535 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 129087.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23055 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 55545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 200.28ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 55535 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 139264.92ms IncrementalHoareTripleChecker+Time [2021-11-03 02:23:09,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23055 Valid, 0 Invalid, 55545 Unknown, 0 Unchecked, 200.28ms Time], IncrementalHoareTripleChecker [9 Valid, 55535 Invalid, 1 Unknown, 0 Unchecked, 139264.92ms Time] [2021-11-03 02:23:09,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110706 states. [2021-11-03 02:23:11,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110706 to 110262. [2021-11-03 02:23:11,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110262 states, 110252 states have (on average 1.1996154264775243) internal successors, (132260), 110261 states have internal predecessors, (132260), 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) [2021-11-03 02:23:12,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110262 states to 110262 states and 132260 transitions. [2021-11-03 02:23:12,155 INFO L78 Accepts]: Start accepts. Automaton has 110262 states and 132260 transitions. Word has length 84 [2021-11-03 02:23:12,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 02:23:12,155 INFO L470 AbstractCegarLoop]: Abstraction has 110262 states and 132260 transitions. [2021-11-03 02:23:12,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2021-11-03 02:23:12,156 INFO L276 IsEmpty]: Start isEmpty. Operand 110262 states and 132260 transitions. [2021-11-03 02:23:12,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-03 02:23:12,162 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 02:23:12,162 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] [2021-11-03 02:23:12,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 02:23:12,163 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 02:23:12,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 02:23:12,163 INFO L85 PathProgramCache]: Analyzing trace with hash -43129630, now seen corresponding path program 1 times [2021-11-03 02:23:12,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 02:23:12,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897979308] [2021-11-03 02:23:12,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 02:23:12,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 02:23:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 02:23:12,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 02:23:12,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 02:23:12,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897979308] [2021-11-03 02:23:12,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897979308] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 02:23:12,352 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 02:23:12,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 02:23:12,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338940692] [2021-11-03 02:23:12,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 02:23:12,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 02:23:12,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 02:23:12,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:23:12,353 INFO L87 Difference]: Start difference. First operand 110262 states and 132260 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2021-11-03 02:23:14,465 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:24:38,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 02:24:38,611 INFO L93 Difference]: Finished difference Result 233682 states and 280715 transitions. [2021-11-03 02:24:38,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 02:24:38,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 87 [2021-11-03 02:24:38,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 02:24:38,915 INFO L225 Difference]: With dead ends: 233682 [2021-11-03 02:24:38,916 INFO L226 Difference]: Without dead ends: 123488 [2021-11-03 02:24:39,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.71ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:24:39,138 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 25122 mSDsluCounter, 6685 mSDsCounter, 0 mSdLazyCounter, 34510 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75360.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25122 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 34537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 101.72ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 34510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 81487.73ms IncrementalHoareTripleChecker+Time [2021-11-03 02:24:39,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25122 Valid, 0 Invalid, 34537 Unknown, 0 Unchecked, 101.72ms Time], IncrementalHoareTripleChecker [26 Valid, 34510 Invalid, 1 Unknown, 0 Unchecked, 81487.73ms Time] [2021-11-03 02:24:39,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123488 states. [2021-11-03 02:24:41,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123488 to 122152. [2021-11-03 02:24:42,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122152 states, 122142 states have (on average 1.2030751092990126) internal successors, (146946), 122151 states have internal predecessors, (146946), 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) [2021-11-03 02:24:42,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122152 states to 122152 states and 146946 transitions. [2021-11-03 02:24:42,478 INFO L78 Accepts]: Start accepts. Automaton has 122152 states and 146946 transitions. Word has length 87 [2021-11-03 02:24:42,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 02:24:42,479 INFO L470 AbstractCegarLoop]: Abstraction has 122152 states and 146946 transitions. [2021-11-03 02:24:42,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2021-11-03 02:24:42,479 INFO L276 IsEmpty]: Start isEmpty. Operand 122152 states and 146946 transitions. [2021-11-03 02:24:42,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-03 02:24:42,489 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 02:24:42,489 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 02:24:42,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 02:24:42,490 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 02:24:42,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 02:24:42,494 INFO L85 PathProgramCache]: Analyzing trace with hash 232168481, now seen corresponding path program 1 times [2021-11-03 02:24:42,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 02:24:42,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928891205] [2021-11-03 02:24:42,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 02:24:42,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 02:24:42,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 02:24:42,689 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 02:24:42,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 02:24:42,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928891205] [2021-11-03 02:24:42,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928891205] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 02:24:42,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 02:24:42,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 02:24:42,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575982627] [2021-11-03 02:24:42,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 02:24:42,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 02:24:42,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 02:24:42,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:24:42,691 INFO L87 Difference]: Start difference. First operand 122152 states and 146946 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2021-11-03 02:24:44,834 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:27:17,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 02:27:17,144 INFO L93 Difference]: Finished difference Result 366240 states and 440606 transitions. [2021-11-03 02:27:17,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 02:27:17,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 102 [2021-11-03 02:27:17,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 02:27:17,956 INFO L225 Difference]: With dead ends: 366240 [2021-11-03 02:27:17,958 INFO L226 Difference]: Without dead ends: 244156 [2021-11-03 02:27:18,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.74ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:27:18,622 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 27699 mSDsluCounter, 27781 mSDsCounter, 0 mSdLazyCounter, 60987 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 134708.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27699 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 60994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 191.70ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 60987 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 145899.38ms IncrementalHoareTripleChecker+Time [2021-11-03 02:27:18,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27699 Valid, 0 Invalid, 60994 Unknown, 0 Unchecked, 191.70ms Time], IncrementalHoareTripleChecker [6 Valid, 60987 Invalid, 1 Unknown, 0 Unchecked, 145899.38ms Time] [2021-11-03 02:27:18,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244156 states. [2021-11-03 02:27:23,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244156 to 244040. [2021-11-03 02:27:24,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244040 states, 244030 states have (on average 1.2030570011883785) internal successors, (293582), 244039 states have internal predecessors, (293582), 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) [2021-11-03 02:27:25,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244040 states to 244040 states and 293582 transitions. [2021-11-03 02:27:25,274 INFO L78 Accepts]: Start accepts. Automaton has 244040 states and 293582 transitions. Word has length 102 [2021-11-03 02:27:25,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 02:27:25,275 INFO L470 AbstractCegarLoop]: Abstraction has 244040 states and 293582 transitions. [2021-11-03 02:27:25,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2021-11-03 02:27:25,275 INFO L276 IsEmpty]: Start isEmpty. Operand 244040 states and 293582 transitions. [2021-11-03 02:27:25,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-03 02:27:25,286 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 02:27:25,286 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] [2021-11-03 02:27:25,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-03 02:27:25,288 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 02:27:25,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 02:27:25,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1079765493, now seen corresponding path program 1 times [2021-11-03 02:27:25,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 02:27:25,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064856609] [2021-11-03 02:27:25,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 02:27:25,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 02:27:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 02:27:25,455 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 02:27:25,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 02:27:25,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064856609] [2021-11-03 02:27:25,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064856609] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 02:27:25,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 02:27:25,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 02:27:25,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051847187] [2021-11-03 02:27:25,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 02:27:25,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 02:27:25,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 02:27:25,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:27:25,458 INFO L87 Difference]: Start difference. First operand 244040 states and 293582 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2021-11-03 02:27:27,495 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:30:08,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 02:30:08,446 INFO L93 Difference]: Finished difference Result 556370 states and 669453 transitions. [2021-11-03 02:30:08,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 02:30:08,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 107 [2021-11-03 02:30:08,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 02:30:09,357 INFO L225 Difference]: With dead ends: 556370 [2021-11-03 02:30:09,357 INFO L226 Difference]: Without dead ends: 312398 [2021-11-03 02:30:09,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.98ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:30:09,754 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 13576 mSDsluCounter, 27725 mSDsCounter, 0 mSdLazyCounter, 69167 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 141845.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13576 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 69183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 192.41ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 69167 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 152477.36ms IncrementalHoareTripleChecker+Time [2021-11-03 02:30:09,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13576 Valid, 0 Invalid, 69183 Unknown, 0 Unchecked, 192.41ms Time], IncrementalHoareTripleChecker [15 Valid, 69167 Invalid, 1 Unknown, 0 Unchecked, 152477.36ms Time] [2021-11-03 02:30:10,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312398 states. [2021-11-03 02:30:16,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312398 to 312324. [2021-11-03 02:30:17,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312324 states, 312314 states have (on average 1.2027574812528417) internal successors, (375638), 312323 states have internal predecessors, (375638), 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) [2021-11-03 02:30:18,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312324 states to 312324 states and 375638 transitions. [2021-11-03 02:30:18,668 INFO L78 Accepts]: Start accepts. Automaton has 312324 states and 375638 transitions. Word has length 107 [2021-11-03 02:30:18,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 02:30:18,669 INFO L470 AbstractCegarLoop]: Abstraction has 312324 states and 375638 transitions. [2021-11-03 02:30:18,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2021-11-03 02:30:18,670 INFO L276 IsEmpty]: Start isEmpty. Operand 312324 states and 375638 transitions. [2021-11-03 02:30:18,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-03 02:30:18,690 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 02:30:18,690 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 02:30:18,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-03 02:30:18,691 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 02:30:18,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 02:30:18,691 INFO L85 PathProgramCache]: Analyzing trace with hash 325101041, now seen corresponding path program 1 times [2021-11-03 02:30:18,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 02:30:18,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317719035] [2021-11-03 02:30:18,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 02:30:18,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 02:30:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 02:30:18,867 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-03 02:30:18,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 02:30:18,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317719035] [2021-11-03 02:30:18,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317719035] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 02:30:18,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 02:30:18,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 02:30:18,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540499505] [2021-11-03 02:30:18,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 02:30:18,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 02:30:18,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 02:30:18,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:30:18,870 INFO L87 Difference]: Start difference. First operand 312324 states and 375638 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2021-11-03 02:30:21,090 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15