./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 c36dfa3b 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-c36dfa3 [2021-11-04 09:07:26,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 09:07:26,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 09:07:26,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 09:07:26,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 09:07:26,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 09:07:26,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 09:07:26,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 09:07:26,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 09:07:26,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 09:07:26,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 09:07:26,474 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 09:07:26,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 09:07:26,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 09:07:26,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 09:07:26,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 09:07:26,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 09:07:26,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 09:07:26,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 09:07:26,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 09:07:26,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 09:07:26,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 09:07:26,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 09:07:26,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 09:07:26,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 09:07:26,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 09:07:26,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 09:07:26,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 09:07:26,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 09:07:26,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 09:07:26,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 09:07:26,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 09:07:26,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 09:07:26,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 09:07:26,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 09:07:26,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 09:07:26,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 09:07:26,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 09:07:26,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 09:07:26,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 09:07:26,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 09:07:26,510 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 09:07:26,539 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 09:07:26,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 09:07:26,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 09:07:26,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 09:07:26,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 09:07:26,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 09:07:26,542 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 09:07:26,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 09:07:26,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 09:07:26,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 09:07:26,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 09:07:26,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 09:07:26,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 09:07:26,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 09:07:26,544 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 09:07:26,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 09:07:26,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 09:07:26,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 09:07:26,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 09:07:26,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 09:07:26,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 09:07:26,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 09:07:26,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 09:07:26,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 09:07:26,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 09:07:26,546 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 09:07:26,546 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 09:07:26,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 09:07:26,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 09:07:26,547 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 992a1e8d90338cdabe7a076eea5104d9629c0e7f956adc14aa39d01d99d3f218 [2021-11-04 09:07:26,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 09:07:26,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 09:07:26,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 09:07:26,823 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 09:07:26,823 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 09:07:26,825 INFO L432 ainManager$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 [2021-11-04 09:07:26,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55c8c2bc7/605e2e85a5744a79af335032901d3d59/FLAG1acf571e5 [2021-11-04 09:07:27,674 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 09:07:27,675 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 [2021-11-04 09:07:27,732 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55c8c2bc7/605e2e85a5744a79af335032901d3d59/FLAG1acf571e5 [2021-11-04 09:07:27,920 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55c8c2bc7/605e2e85a5744a79af335032901d3d59 [2021-11-04 09:07:27,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 09:07:27,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 09:07:27,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 09:07:27,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 09:07:27,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 09:07:27,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 09:07:27" (1/1) ... [2021-11-04 09:07:27,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51eb17f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:07:27, skipping insertion in model container [2021-11-04 09:07:27,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 09:07:27" (1/1) ... [2021-11-04 09:07:27,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 09:07:28,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 09:07:31,887 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] [2021-11-04 09:07:31,889 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] [2021-11-04 09:07:31,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 09:07:31,964 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 09:07:32,291 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] [2021-11-04 09:07:32,292 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] [2021-11-04 09:07:32,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 09:07:32,487 INFO L208 MainTranslator]: Completed translation [2021-11-04 09:07:32,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:07:32 WrapperNode [2021-11-04 09:07:32,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 09:07:32,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 09:07:32,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 09:07:32,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 09:07:32,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:07:32" (1/1) ... [2021-11-04 09:07:32,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:07:32" (1/1) ... [2021-11-04 09:07:34,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 09:07:35,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 09:07:35,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 09:07:35,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 09:07:35,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:07:32" (1/1) ... [2021-11-04 09:07:35,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:07:32" (1/1) ... [2021-11-04 09:07:35,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:07:32" (1/1) ... [2021-11-04 09:07:35,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:07:32" (1/1) ... [2021-11-04 09:07:36,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:07:32" (1/1) ... [2021-11-04 09:07:36,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:07:32" (1/1) ... [2021-11-04 09:07:36,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:07:32" (1/1) ... [2021-11-04 09:07:37,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 09:07:37,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 09:07:37,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 09:07:37,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 09:07:37,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:07:32" (1/1) ... [2021-11-04 09:07:37,157 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 09:07:37,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 09:07:37,175 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) [2021-11-04 09:07:37,193 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 [2021-11-04 09:07:37,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 09:07:37,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 09:07:37,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 09:07:37,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 09:07:37,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 09:07:37,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 09:07:37,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 09:07:37,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 09:07:37,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 09:07:37,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 09:07:37,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 09:07:37,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 09:07:37,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 09:07:37,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 09:07:37,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 09:08:17,085 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-04 09:08:17,086 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-04 09:08:17,086 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-04 09:08:17,086 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-04 09:08:17,086 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-04 09:08:17,086 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res := 0; [2021-11-04 09:08:17,086 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res := 0; [2021-11-04 09:08:17,087 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#7: ldv_switch_2_#res := 0; [2021-11-04 09:08:17,087 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#8: ldv_switch_2_#res := 0; [2021-11-04 09:08:17,087 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#9: ldv_switch_2_#res := 0; [2021-11-04 09:08:17,087 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 09:08:17,087 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 09:08:17,088 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-04 09:08:17,090 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 09:08:17,093 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#10: ldv_switch_2_#res := 0; [2021-11-04 09:08:17,093 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 09:08:17,136 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 09:08:17,136 INFO L299 CfgBuilder]: Removed 18843 assume(true) statements. [2021-11-04 09:08:17,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 09:08:17 BoogieIcfgContainer [2021-11-04 09:08:17,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 09:08:17,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 09:08:17,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 09:08:17,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 09:08:17,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 09:07:27" (1/3) ... [2021-11-04 09:08:17,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f03182a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 09:08:17, skipping insertion in model container [2021-11-04 09:08:17,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:07:32" (2/3) ... [2021-11-04 09:08:17,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f03182a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 09:08:17, skipping insertion in model container [2021-11-04 09:08:17,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 09:08:17" (3/3) ... [2021-11-04 09:08:17,156 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2021-11-04 09:08:17,159 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 09:08:17,159 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-04 09:08:17,235 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 09:08:17,240 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 [2021-11-04 09:08:17,241 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-04 09:08:17,386 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) [2021-11-04 09:08:17,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-04 09:08:17,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:08:17,408 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] [2021-11-04 09:08:17,408 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)] === [2021-11-04 09:08:17,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:08:17,412 INFO L85 PathProgramCache]: Analyzing trace with hash -258267135, now seen corresponding path program 1 times [2021-11-04 09:08:17,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:08:17,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038218138] [2021-11-04 09:08:17,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:08:17,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:08:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:08:18,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:08:18,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:08:18,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038218138] [2021-11-04 09:08:18,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038218138] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:08:18,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:08:18,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:08:18,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411929766] [2021-11-04 09:08:18,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:08:18,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:08:18,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:08:18,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:08:18,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:08:18,294 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) [2021-11-04 09:08:20,501 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:13:19,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:13:19,833 INFO L93 Difference]: Finished difference Result 39846 states and 53391 transitions. [2021-11-04 09:13:19,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:13:19,845 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 [2021-11-04 09:13:19,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:13:19,951 INFO L225 Difference]: With dead ends: 39846 [2021-11-04 09:13:19,951 INFO L226 Difference]: Without dead ends: 22272 [2021-11-04 09:13:19,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.16ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:13:20,001 INFO L933 BasicCegarLoop]: 592 mSDtfsCounter, 8672 mSDsluCounter, 22238 mSDsCounter, 0 mSdLazyCounter, 43439 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 287005.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8672 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 43461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 331.60ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 43439 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 297972.06ms IncrementalHoareTripleChecker+Time [2021-11-04 09:13:20,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8672 Valid, 1182 Invalid, 43461 Unknown, 0 Unchecked, 331.60ms Time], IncrementalHoareTripleChecker [21 Valid, 43439 Invalid, 1 Unknown, 0 Unchecked, 297972.06ms Time] [2021-11-04 09:13:20,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22272 states. [2021-11-04 09:13:20,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22272 to 22264. [2021-11-04 09:13:20,511 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) [2021-11-04 09:13:20,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22264 states to 22264 states and 29185 transitions. [2021-11-04 09:13:20,570 INFO L78 Accepts]: Start accepts. Automaton has 22264 states and 29185 transitions. Word has length 71 [2021-11-04 09:13:20,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:13:20,572 INFO L470 AbstractCegarLoop]: Abstraction has 22264 states and 29185 transitions. [2021-11-04 09:13:20,572 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) [2021-11-04 09:13:20,573 INFO L276 IsEmpty]: Start isEmpty. Operand 22264 states and 29185 transitions. [2021-11-04 09:13:20,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-04 09:13:20,588 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:13:20,588 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] [2021-11-04 09:13:20,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 09:13:20,589 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)] === [2021-11-04 09:13:20,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:13:20,590 INFO L85 PathProgramCache]: Analyzing trace with hash 12432041, now seen corresponding path program 1 times [2021-11-04 09:13:20,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:13:20,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839035841] [2021-11-04 09:13:20,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:13:20,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:13:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:13:21,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:13:21,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:13:21,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839035841] [2021-11-04 09:13:21,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839035841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:13:21,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:13:21,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:13:21,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260431993] [2021-11-04 09:13:21,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:13:21,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:13:21,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:13:21,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:13:21,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:13:21,390 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) [2021-11-04 09:13:23,503 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 [] [2021-11-04 09:18:46,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:18:46,854 INFO L93 Difference]: Finished difference Result 65208 states and 85542 transitions. [2021-11-04 09:18:46,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:18:46,854 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 [2021-11-04 09:18:46,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:18:46,968 INFO L225 Difference]: With dead ends: 65208 [2021-11-04 09:18:46,968 INFO L226 Difference]: Without dead ends: 43052 [2021-11-04 09:18:47,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.65ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:18:47,009 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 20062 mSDsluCounter, 21068 mSDsCounter, 0 mSdLazyCounter, 42176 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 308994.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20062 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 42184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 266.24ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 42176 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 321215.95ms IncrementalHoareTripleChecker+Time [2021-11-04 09:18:47,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20062 Valid, 0 Invalid, 42184 Unknown, 0 Unchecked, 266.24ms Time], IncrementalHoareTripleChecker [7 Valid, 42176 Invalid, 1 Unknown, 0 Unchecked, 321215.95ms Time] [2021-11-04 09:18:47,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43052 states. [2021-11-04 09:18:47,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43052 to 43008. [2021-11-04 09:18:47,766 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) [2021-11-04 09:18:47,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43008 states to 43008 states and 56432 transitions. [2021-11-04 09:18:47,850 INFO L78 Accepts]: Start accepts. Automaton has 43008 states and 56432 transitions. Word has length 90 [2021-11-04 09:18:47,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:18:47,852 INFO L470 AbstractCegarLoop]: Abstraction has 43008 states and 56432 transitions. [2021-11-04 09:18:47,853 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) [2021-11-04 09:18:47,853 INFO L276 IsEmpty]: Start isEmpty. Operand 43008 states and 56432 transitions. [2021-11-04 09:18:47,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-04 09:18:47,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:18:47,866 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] [2021-11-04 09:18:47,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 09:18:47,866 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)] === [2021-11-04 09:18:47,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:18:47,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1581684744, now seen corresponding path program 1 times [2021-11-04 09:18:47,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:18:47,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433189629] [2021-11-04 09:18:47,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:18:47,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:18:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:18:48,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:18:48,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:18:48,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433189629] [2021-11-04 09:18:48,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433189629] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:18:48,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:18:48,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:18:48,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019660981] [2021-11-04 09:18:48,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:18:48,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:18:48,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:18:48,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:18:48,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:18:48,550 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) [2021-11-04 09:18:50,692 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 [] Killed by 15