./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.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 992a1e8d90338cdabe7a076eea5104d9629c0e7f956adc14aa39d01d99d3f218 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 19:54:44,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 19:54:44,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 19:54:44,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 19:54:44,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 19:54:44,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 19:54:44,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 19:54:44,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 19:54:44,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 19:54:44,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 19:54:44,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 19:54:44,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 19:54:44,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 19:54:44,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 19:54:44,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 19:54:44,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 19:54:44,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 19:54:44,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 19:54:44,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 19:54:44,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 19:54:44,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 19:54:44,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 19:54:44,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 19:54:44,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 19:54:44,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 19:54:44,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 19:54:44,981 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 19:54:44,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 19:54:44,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 19:54:44,983 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 19:54:44,983 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 19:54:44,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 19:54:44,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 19:54:44,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 19:54:44,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 19:54:44,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 19:54:44,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 19:54:44,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 19:54:44,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 19:54:44,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 19:54:44,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 19:54:44,992 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 19:54:45,020 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 19:54:45,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 19:54:45,022 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 19:54:45,022 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 19:54:45,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 19:54:45,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 19:54:45,024 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 19:54:45,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 19:54:45,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 19:54:45,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 19:54:45,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 19:54:45,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 19:54:45,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 19:54:45,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 19:54:45,025 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 19:54:45,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 19:54:45,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 19:54:45,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 19:54:45,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 19:54:45,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:54:45,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 19:54:45,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 19:54:45,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 19:54:45,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 19:54:45,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 19:54:45,027 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 19:54:45,027 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 19:54:45,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 19:54:45,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 19:54:45,028 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 992a1e8d90338cdabe7a076eea5104d9629c0e7f956adc14aa39d01d99d3f218 [2021-11-05 19:54:45,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 19:54:45,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 19:54:45,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 19:54:45,303 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 19:54:45,303 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 19:54:45,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2021-11-05 19:54:45,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcf886de1/b3e4cea8df8241a08e7d74963c1b940d/FLAG7211cfac2 [2021-11-05 19:54:45,984 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 19:54:45,984 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2021-11-05 19:54:46,047 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcf886de1/b3e4cea8df8241a08e7d74963c1b940d/FLAG7211cfac2 [2021-11-05 19:54:46,104 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcf886de1/b3e4cea8df8241a08e7d74963c1b940d [2021-11-05 19:54:46,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 19:54:46,107 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 19:54:46,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 19:54:46,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 19:54:46,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 19:54:46,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:54:46" (1/1) ... [2021-11-05 19:54:46,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58fef9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:54:46, skipping insertion in model container [2021-11-05 19:54:46,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:54:46" (1/1) ... [2021-11-05 19:54:46,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 19:54:46,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 19:54:49,009 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[492962,492975] [2021-11-05 19:54:49,012 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[493107,493120] [2021-11-05 19:54:49,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:54:49,079 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 19:54:49,383 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[492962,492975] [2021-11-05 19:54:49,384 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[493107,493120] [2021-11-05 19:54:49,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:54:49,569 INFO L208 MainTranslator]: Completed translation [2021-11-05 19:54:49,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:54:49 WrapperNode [2021-11-05 19:54:49,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 19:54:49,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 19:54:49,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 19:54:49,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 19:54:49,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:54:49" (1/1) ... [2021-11-05 19:54:49,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:54:49" (1/1) ... [2021-11-05 19:54:51,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 19:54:51,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 19:54:51,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 19:54:51,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 19:54:51,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:54:49" (1/1) ... [2021-11-05 19:54:51,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:54:49" (1/1) ... [2021-11-05 19:54:52,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:54:49" (1/1) ... [2021-11-05 19:54:52,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:54:49" (1/1) ... [2021-11-05 19:54:52,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:54:49" (1/1) ... [2021-11-05 19:54:53,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:54:49" (1/1) ... [2021-11-05 19:54:53,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:54:49" (1/1) ... [2021-11-05 19:54:53,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 19:54:53,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 19:54:53,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 19:54:53,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 19:54:53,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:54:49" (1/1) ... [2021-11-05 19:54:53,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:54:53,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:54:53,477 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) [2021-11-05 19:54:53,496 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 [2021-11-05 19:54:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 19:54:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 19:54:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 19:54:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 19:54:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 19:54:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 19:54:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 19:54:53,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 19:54:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 19:54:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 19:54:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 19:54:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 19:54:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 19:54:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 19:54:53,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 19:58:02,177 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 19:58:02,178 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-05 19:58:02,178 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-05 19:58:02,178 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-05 19:58:02,178 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-05 19:58:02,178 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res := 0; [2021-11-05 19:58:02,178 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res := 0; [2021-11-05 19:58:02,178 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#7: ldv_switch_2_#res := 0; [2021-11-05 19:58:02,178 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#8: ldv_switch_2_#res := 0; [2021-11-05 19:58:02,178 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#9: ldv_switch_2_#res := 0; [2021-11-05 19:58:02,178 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 19:58:02,179 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 19:58:02,179 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-05 19:58:02,181 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 19:58:02,183 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#10: ldv_switch_2_#res := 0; [2021-11-05 19:58:02,183 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 19:58:02,225 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 19:58:02,225 INFO L299 CfgBuilder]: Removed 18843 assume(true) statements. [2021-11-05 19:58:02,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:58:02 BoogieIcfgContainer [2021-11-05 19:58:02,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 19:58:02,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 19:58:02,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 19:58:02,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 19:58:02,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:54:46" (1/3) ... [2021-11-05 19:58:02,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453787b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:58:02, skipping insertion in model container [2021-11-05 19:58:02,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:54:49" (2/3) ... [2021-11-05 19:58:02,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453787b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:58:02, skipping insertion in model container [2021-11-05 19:58:02,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:58:02" (3/3) ... [2021-11-05 19:58:02,242 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2021-11-05 19:58:02,245 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 19:58:02,245 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-05 19:58:02,327 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 19:58:02,332 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 [2021-11-05 19:58:02,334 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-05 19:58:02,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 16771 states, 16762 states have (on average 1.3407707910750508) internal successors, (22474), 16770 states have internal predecessors, (22474), 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) [2021-11-05 19:58:02,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-05 19:58:02,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:58:02,505 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] [2021-11-05 19:58:02,505 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 19:58:02,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:58:02,509 INFO L85 PathProgramCache]: Analyzing trace with hash -258267135, now seen corresponding path program 1 times [2021-11-05 19:58:02,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:58:02,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153030939] [2021-11-05 19:58:02,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:58:02,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:58:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:58:03,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:58:03,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:58:03,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153030939] [2021-11-05 19:58:03,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153030939] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:58:03,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:58:03,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:58:03,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170003442] [2021-11-05 19:58:03,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:58:03,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:58:03,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:58:03,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:58:03,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:58:03,479 INFO L87 Difference]: Start difference. First operand has 16771 states, 16762 states have (on average 1.3407707910750508) internal successors, (22474), 16770 states have internal predecessors, (22474), 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 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-05 19:58:05,624 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:58:06,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:58:06,901 INFO L93 Difference]: Finished difference Result 39846 states and 53391 transitions. [2021-11-05 19:58:06,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:58:06,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2021-11-05 19:58:06,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:58:07,000 INFO L225 Difference]: With dead ends: 39846 [2021-11-05 19:58:07,001 INFO L226 Difference]: Without dead ends: 22272 [2021-11-05 19:58:07,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:58:07,043 INFO L933 BasicCegarLoop]: 22306 mSDtfsCounter, 8672 mSDsluCounter, 22238 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2624.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8672 SdHoareTripleChecker+Valid, 44544 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 65.05ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2743.91ms IncrementalHoareTripleChecker+Time [2021-11-05 19:58:07,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8672 Valid, 44544 Invalid, 100 Unknown, 0 Unchecked, 65.05ms Time], IncrementalHoareTripleChecker [21 Valid, 78 Invalid, 1 Unknown, 0 Unchecked, 2743.91ms Time] [2021-11-05 19:58:07,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22272 states. [2021-11-05 19:58:07,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22272 to 22264. [2021-11-05 19:58:07,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22264 states, 22255 states have (on average 1.3113906987193888) internal successors, (29185), 22263 states have internal predecessors, (29185), 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) [2021-11-05 19:58:07,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22264 states to 22264 states and 29185 transitions. [2021-11-05 19:58:07,757 INFO L78 Accepts]: Start accepts. Automaton has 22264 states and 29185 transitions. Word has length 71 [2021-11-05 19:58:07,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:58:07,759 INFO L470 AbstractCegarLoop]: Abstraction has 22264 states and 29185 transitions. [2021-11-05 19:58:07,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-05 19:58:07,760 INFO L276 IsEmpty]: Start isEmpty. Operand 22264 states and 29185 transitions. [2021-11-05 19:58:07,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-05 19:58:07,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:58:07,771 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] [2021-11-05 19:58:07,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 19:58:07,772 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 19:58:07,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:58:07,773 INFO L85 PathProgramCache]: Analyzing trace with hash 12432041, now seen corresponding path program 1 times [2021-11-05 19:58:07,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:58:07,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079805820] [2021-11-05 19:58:07,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:58:07,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:58:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:58:08,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:58:08,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:58:08,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079805820] [2021-11-05 19:58:08,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079805820] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:58:08,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:58:08,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:58:08,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686873821] [2021-11-05 19:58:08,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:58:08,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:58:08,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:58:08,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:58:08,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:58:08,283 INFO L87 Difference]: Start difference. First operand 22264 states and 29185 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2021-11-05 19:58:10,401 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 [] [2021-11-05 19:58:11,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:58:11,914 INFO L93 Difference]: Finished difference Result 65208 states and 85542 transitions. [2021-11-05 19:58:11,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:58:11,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2021-11-05 19:58:11,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:58:12,028 INFO L225 Difference]: With dead ends: 65208 [2021-11-05 19:58:12,028 INFO L226 Difference]: Without dead ends: 43052 [2021-11-05 19:58:12,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.11ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:58:12,069 INFO L933 BasicCegarLoop]: 21084 mSDtfsCounter, 20062 mSDsluCounter, 21068 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2292.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20062 SdHoareTripleChecker+Valid, 42152 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 58.53ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2440.07ms IncrementalHoareTripleChecker+Time [2021-11-05 19:58:12,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20062 Valid, 42152 Invalid, 33 Unknown, 0 Unchecked, 58.53ms Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2440.07ms Time] [2021-11-05 19:58:12,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43052 states. [2021-11-05 19:58:12,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43052 to 43008. [2021-11-05 19:58:12,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43008 states, 42999 states have (on average 1.3124026140142795) internal successors, (56432), 43007 states have internal predecessors, (56432), 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) [2021-11-05 19:58:12,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43008 states to 43008 states and 56432 transitions. [2021-11-05 19:58:12,978 INFO L78 Accepts]: Start accepts. Automaton has 43008 states and 56432 transitions. Word has length 90 [2021-11-05 19:58:12,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:58:12,979 INFO L470 AbstractCegarLoop]: Abstraction has 43008 states and 56432 transitions. [2021-11-05 19:58:12,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2021-11-05 19:58:12,979 INFO L276 IsEmpty]: Start isEmpty. Operand 43008 states and 56432 transitions. [2021-11-05 19:58:12,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-05 19:58:12,990 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:58:12,990 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] [2021-11-05 19:58:12,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 19:58:12,991 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 19:58:12,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:58:12,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1581684744, now seen corresponding path program 1 times [2021-11-05 19:58:12,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:58:12,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843297681] [2021-11-05 19:58:12,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:58:12,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:58:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:58:13,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:58:13,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:58:13,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843297681] [2021-11-05 19:58:13,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843297681] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:58:13,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:58:13,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:58:13,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321082097] [2021-11-05 19:58:13,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:58:13,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:58:13,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:58:13,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:58:13,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:58:13,575 INFO L87 Difference]: Start difference. First operand 43008 states and 56432 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2021-11-05 19:58:15,696 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:58:17,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:58:17,889 INFO L93 Difference]: Finished difference Result 122782 states and 161341 transitions. [2021-11-05 19:58:17,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:58:17,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2021-11-05 19:58:17,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:58:18,079 INFO L225 Difference]: With dead ends: 122782 [2021-11-05 19:58:18,080 INFO L226 Difference]: Without dead ends: 79882 [2021-11-05 19:58:18,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.21ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:58:18,168 INFO L933 BasicCegarLoop]: 21038 mSDtfsCounter, 19939 mSDsluCounter, 19411 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3066.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19939 SdHoareTripleChecker+Valid, 40449 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.29ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3232.60ms IncrementalHoareTripleChecker+Time [2021-11-05 19:58:18,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19939 Valid, 40449 Invalid, 171 Unknown, 0 Unchecked, 31.29ms Time], IncrementalHoareTripleChecker [45 Valid, 125 Invalid, 1 Unknown, 0 Unchecked, 3232.60ms Time] [2021-11-05 19:58:18,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79882 states. [2021-11-05 19:58:19,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79882 to 79348. [2021-11-05 19:58:19,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79348 states, 79339 states have (on average 1.3165278110387073) internal successors, (104452), 79347 states have internal predecessors, (104452), 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) [2021-11-05 19:58:19,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79348 states to 79348 states and 104452 transitions. [2021-11-05 19:58:19,942 INFO L78 Accepts]: Start accepts. Automaton has 79348 states and 104452 transitions. Word has length 90 [2021-11-05 19:58:19,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:58:19,943 INFO L470 AbstractCegarLoop]: Abstraction has 79348 states and 104452 transitions. [2021-11-05 19:58:19,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2021-11-05 19:58:19,943 INFO L276 IsEmpty]: Start isEmpty. Operand 79348 states and 104452 transitions. [2021-11-05 19:58:19,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-05 19:58:19,961 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:58:19,961 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] [2021-11-05 19:58:19,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 19:58:19,962 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 19:58:19,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:58:19,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1495129010, now seen corresponding path program 1 times [2021-11-05 19:58:19,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:58:19,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464501027] [2021-11-05 19:58:19,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:58:19,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:58:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:58:20,522 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:58:20,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:58:20,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464501027] [2021-11-05 19:58:20,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464501027] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:58:20,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:58:20,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:58:20,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821192283] [2021-11-05 19:58:20,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:58:20,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:58:20,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:58:20,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:58:20,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:58:20,523 INFO L87 Difference]: Start difference. First operand 79348 states and 104452 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:58:22,642 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:58:24,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:58:24,822 INFO L93 Difference]: Finished difference Result 179790 states and 236665 transitions. [2021-11-05 19:58:24,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:58:24,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-11-05 19:58:24,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:58:25,172 INFO L225 Difference]: With dead ends: 179790 [2021-11-05 19:58:25,173 INFO L226 Difference]: Without dead ends: 100550 [2021-11-05 19:58:25,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.02ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:58:25,274 INFO L933 BasicCegarLoop]: 29172 mSDtfsCounter, 8090 mSDsluCounter, 21020 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2576.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8090 SdHoareTripleChecker+Valid, 50192 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.47ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2681.32ms IncrementalHoareTripleChecker+Time [2021-11-05 19:58:25,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8090 Valid, 50192 Invalid, 86 Unknown, 0 Unchecked, 30.47ms Time], IncrementalHoareTripleChecker [15 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 2681.32ms Time] [2021-11-05 19:58:25,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100550 states. [2021-11-05 19:58:27,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100550 to 100530. [2021-11-05 19:58:27,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100530 states, 100521 states have (on average 1.3157051760328689) internal successors, (132256), 100529 states have internal predecessors, (132256), 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) [2021-11-05 19:58:27,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100530 states to 100530 states and 132256 transitions. [2021-11-05 19:58:27,683 INFO L78 Accepts]: Start accepts. Automaton has 100530 states and 132256 transitions. Word has length 103 [2021-11-05 19:58:27,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:58:27,683 INFO L470 AbstractCegarLoop]: Abstraction has 100530 states and 132256 transitions. [2021-11-05 19:58:27,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:58:27,684 INFO L276 IsEmpty]: Start isEmpty. Operand 100530 states and 132256 transitions. [2021-11-05 19:58:27,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-05 19:58:27,702 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:58:27,702 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] [2021-11-05 19:58:27,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 19:58:27,703 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 19:58:27,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:58:27,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1730380671, now seen corresponding path program 1 times [2021-11-05 19:58:27,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:58:27,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913275342] [2021-11-05 19:58:27,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:58:27,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:58:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:58:28,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:58:28,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:58:28,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913275342] [2021-11-05 19:58:28,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913275342] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:58:28,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:58:28,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:58:28,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445932241] [2021-11-05 19:58:28,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:58:28,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:58:28,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:58:28,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:58:28,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:58:28,084 INFO L87 Difference]: Start difference. First operand 100530 states and 132256 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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) [2021-11-05 19:58:30,387 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:58:32,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:58:32,291 INFO L93 Difference]: Finished difference Result 210809 states and 277345 transitions. [2021-11-05 19:58:32,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:58:32,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 106 [2021-11-05 19:58:32,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:58:32,525 INFO L225 Difference]: With dead ends: 210809 [2021-11-05 19:58:32,525 INFO L226 Difference]: Without dead ends: 110387 [2021-11-05 19:58:32,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.00ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:58:32,658 INFO L933 BasicCegarLoop]: 21084 mSDtfsCounter, 7177 mSDsluCounter, 21049 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2442.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7177 SdHoareTripleChecker+Valid, 42133 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.40ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2514.76ms IncrementalHoareTripleChecker+Time [2021-11-05 19:58:32,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7177 Valid, 42133 Invalid, 28 Unknown, 0 Unchecked, 24.40ms Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 1 Unknown, 0 Unchecked, 2514.76ms Time] [2021-11-05 19:58:32,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110387 states. [2021-11-05 19:58:34,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110387 to 110385. [2021-11-05 19:58:34,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110385 states, 110376 states have (on average 1.3155124302384575) internal successors, (145201), 110384 states have internal predecessors, (145201), 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) [2021-11-05 19:58:35,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110385 states to 110385 states and 145201 transitions. [2021-11-05 19:58:35,209 INFO L78 Accepts]: Start accepts. Automaton has 110385 states and 145201 transitions. Word has length 106 [2021-11-05 19:58:35,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:58:35,209 INFO L470 AbstractCegarLoop]: Abstraction has 110385 states and 145201 transitions. [2021-11-05 19:58:35,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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) [2021-11-05 19:58:35,210 INFO L276 IsEmpty]: Start isEmpty. Operand 110385 states and 145201 transitions. [2021-11-05 19:58:35,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-05 19:58:35,238 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:58:35,238 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:58:35,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 19:58:35,239 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 19:58:35,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:58:35,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1148524733, now seen corresponding path program 1 times [2021-11-05 19:58:35,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:58:35,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133710187] [2021-11-05 19:58:35,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:58:35,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:58:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:58:35,630 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:58:35,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:58:35,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133710187] [2021-11-05 19:58:35,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133710187] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:58:35,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:58:35,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:58:35,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152053447] [2021-11-05 19:58:35,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:58:35,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:58:35,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:58:35,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:58:35,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:58:35,632 INFO L87 Difference]: Start difference. First operand 110385 states and 145201 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2021-11-05 19:58:37,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:58:41,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:58:41,157 INFO L93 Difference]: Finished difference Result 316694 states and 416836 transitions. [2021-11-05 19:58:41,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:58:41,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 123 [2021-11-05 19:58:41,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:58:41,683 INFO L225 Difference]: With dead ends: 316694 [2021-11-05 19:58:41,683 INFO L226 Difference]: Without dead ends: 206417 [2021-11-05 19:58:41,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.21ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:58:41,860 INFO L933 BasicCegarLoop]: 21973 mSDtfsCounter, 20545 mSDsluCounter, 21066 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2280.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20545 SdHoareTripleChecker+Valid, 43039 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.79ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2360.12ms IncrementalHoareTripleChecker+Time [2021-11-05 19:58:41,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20545 Valid, 43039 Invalid, 33 Unknown, 0 Unchecked, 33.79ms Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2360.12ms Time] [2021-11-05 19:58:42,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206417 states.