./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.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 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 15:03:52,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 15:03:52,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 15:03:52,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 15:03:52,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 15:03:52,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 15:03:52,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 15:03:52,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 15:03:52,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 15:03:52,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 15:03:52,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 15:03:52,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 15:03:52,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 15:03:52,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 15:03:52,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 15:03:52,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 15:03:52,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 15:03:52,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 15:03:52,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 15:03:52,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 15:03:52,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 15:03:52,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 15:03:52,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 15:03:52,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 15:03:52,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 15:03:52,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 15:03:52,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 15:03:52,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 15:03:52,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 15:03:52,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 15:03:52,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 15:03:52,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 15:03:52,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 15:03:52,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 15:03:52,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 15:03:52,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 15:03:52,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 15:03:52,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 15:03:52,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 15:03:52,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 15:03:52,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 15:03:52,101 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 15:03:52,129 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 15:03:52,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 15:03:52,130 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 15:03:52,130 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 15:03:52,131 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 15:03:52,131 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 15:03:52,131 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 15:03:52,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 15:03:52,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 15:03:52,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 15:03:52,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 15:03:52,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 15:03:52,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 15:03:52,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 15:03:52,133 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 15:03:52,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 15:03:52,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 15:03:52,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 15:03:52,134 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 15:03:52,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 15:03:52,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 15:03:52,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 15:03:52,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 15:03:52,134 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 15:03:52,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 15:03:52,135 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 15:03:52,135 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 15:03:52,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 15:03:52,136 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 15:03:52,136 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf [2021-11-06 15:03:52,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 15:03:52,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 15:03:52,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 15:03:52,342 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 15:03:52,343 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 15:03:52,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-11-06 15:03:52,397 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ebcf06fa/c7488806fc8846dc93befd85ea5f4132/FLAG1c21b4826 [2021-11-06 15:03:53,056 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 15:03:53,056 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-11-06 15:03:53,095 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ebcf06fa/c7488806fc8846dc93befd85ea5f4132/FLAG1c21b4826 [2021-11-06 15:03:53,432 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ebcf06fa/c7488806fc8846dc93befd85ea5f4132 [2021-11-06 15:03:53,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 15:03:53,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 15:03:53,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 15:03:53,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 15:03:53,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 15:03:53,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:03:53" (1/1) ... [2021-11-06 15:03:53,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@433ee75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:03:53, skipping insertion in model container [2021-11-06 15:03:53,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:03:53" (1/1) ... [2021-11-06 15:03:53,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 15:03:53,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 15:03:53,925 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2021-11-06 15:03:53,926 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2021-11-06 15:03:54,151 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2021-11-06 15:03:54,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 15:03:54,993 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 15:03:55,087 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2021-11-06 15:03:55,087 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2021-11-06 15:03:55,101 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2021-11-06 15:03:55,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 15:03:55,384 INFO L208 MainTranslator]: Completed translation [2021-11-06 15:03:55,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:03:55 WrapperNode [2021-11-06 15:03:55,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 15:03:55,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 15:03:55,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 15:03:55,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 15:03:55,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:03:55" (1/1) ... [2021-11-06 15:03:55,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:03:55" (1/1) ... [2021-11-06 15:03:56,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 15:03:56,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 15:03:56,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 15:03:56,300 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 15:03:56,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:03:55" (1/1) ... [2021-11-06 15:03:56,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:03:55" (1/1) ... [2021-11-06 15:03:56,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:03:55" (1/1) ... [2021-11-06 15:03:56,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:03:55" (1/1) ... [2021-11-06 15:03:56,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:03:55" (1/1) ... [2021-11-06 15:03:56,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:03:55" (1/1) ... [2021-11-06 15:03:57,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:03:55" (1/1) ... [2021-11-06 15:03:57,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 15:03:57,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 15:03:57,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 15:03:57,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 15:03:57,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:03:55" (1/1) ... [2021-11-06 15:03:57,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 15:03:57,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:03:57,287 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) [2021-11-06 15:03:57,303 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 [2021-11-06 15:03:57,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 15:03:57,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 15:03:57,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-06 15:03:57,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 15:03:57,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 15:03:57,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 15:03:57,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 15:03:57,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 15:03:57,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 15:03:57,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 15:03:57,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 15:03:57,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 15:04:06,188 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 15:04:06,188 INFO L299 CfgBuilder]: Removed 7639 assume(true) statements. [2021-11-06 15:04:06,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:04:06 BoogieIcfgContainer [2021-11-06 15:04:06,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 15:04:06,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 15:04:06,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 15:04:06,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 15:04:06,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 03:03:53" (1/3) ... [2021-11-06 15:04:06,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3008bb5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:04:06, skipping insertion in model container [2021-11-06 15:04:06,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:03:55" (2/3) ... [2021-11-06 15:04:06,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3008bb5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:04:06, skipping insertion in model container [2021-11-06 15:04:06,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:04:06" (3/3) ... [2021-11-06 15:04:06,199 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-11-06 15:04:06,202 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 15:04:06,202 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2021-11-06 15:04:06,273 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 15:04:06,277 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 [2021-11-06 15:04:06,277 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-11-06 15:04:06,351 INFO L276 IsEmpty]: Start isEmpty. Operand has 5954 states, 5936 states have (on average 1.2784703504043127) internal successors, (7589), 5953 states have internal predecessors, (7589), 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) [2021-11-06 15:04:06,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-06 15:04:06,365 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:04:06,366 INFO L513 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] [2021-11-06 15:04:06,366 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-06 15:04:06,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:04:06,370 INFO L85 PathProgramCache]: Analyzing trace with hash 108145079, now seen corresponding path program 1 times [2021-11-06 15:04:06,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:04:06,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806788006] [2021-11-06 15:04:06,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:04:06,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:04:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:04:06,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:04:06,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:04:06,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806788006] [2021-11-06 15:04:06,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806788006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:04:06,723 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:04:06,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:04:06,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105067870] [2021-11-06 15:04:06,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 15:04:06,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:04:06,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 15:04:06,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 15:04:06,745 INFO L87 Difference]: Start difference. First operand has 5954 states, 5936 states have (on average 1.2784703504043127) internal successors, (7589), 5953 states have internal predecessors, (7589), 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 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-11-06 15:04:07,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:04:07,401 INFO L93 Difference]: Finished difference Result 27781 states and 35199 transitions. [2021-11-06 15:04:07,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 15:04:07,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2021-11-06 15:04:07,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:04:07,493 INFO L225 Difference]: With dead ends: 27781 [2021-11-06 15:04:07,493 INFO L226 Difference]: Without dead ends: 21649 [2021-11-06 15:04:07,652 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:04:07,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21649 states. [2021-11-06 15:04:07,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21649 to 10919. [2021-11-06 15:04:07,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10919 states, 10902 states have (on average 1.2526141992294992) internal successors, (13656), 10918 states have internal predecessors, (13656), 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) [2021-11-06 15:04:08,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10919 states to 10919 states and 13656 transitions. [2021-11-06 15:04:08,006 INFO L78 Accepts]: Start accepts. Automaton has 10919 states and 13656 transitions. Word has length 41 [2021-11-06 15:04:08,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:04:08,007 INFO L470 AbstractCegarLoop]: Abstraction has 10919 states and 13656 transitions. [2021-11-06 15:04:08,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-11-06 15:04:08,008 INFO L276 IsEmpty]: Start isEmpty. Operand 10919 states and 13656 transitions. [2021-11-06 15:04:08,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-06 15:04:08,011 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:04:08,012 INFO L513 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] [2021-11-06 15:04:08,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 15:04:08,014 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-06 15:04:08,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:04:08,017 INFO L85 PathProgramCache]: Analyzing trace with hash -2140998400, now seen corresponding path program 1 times [2021-11-06 15:04:08,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:04:08,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339891827] [2021-11-06 15:04:08,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:04:08,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:04:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:04:08,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:04:08,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:04:08,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339891827] [2021-11-06 15:04:08,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339891827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:04:08,183 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:04:08,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:04:08,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371998184] [2021-11-06 15:04:08,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 15:04:08,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:04:08,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 15:04:08,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 15:04:08,186 INFO L87 Difference]: Start difference. First operand 10919 states and 13656 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-11-06 15:04:08,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:04:08,989 INFO L93 Difference]: Finished difference Result 52621 states and 65663 transitions. [2021-11-06 15:04:08,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 15:04:08,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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 42 [2021-11-06 15:04:08,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:04:09,118 INFO L225 Difference]: With dead ends: 52621 [2021-11-06 15:04:09,118 INFO L226 Difference]: Without dead ends: 41737 [2021-11-06 15:04:09,149 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:04:09,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41737 states. [2021-11-06 15:04:09,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41737 to 21569. [2021-11-06 15:04:09,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21569 states, 21552 states have (on average 1.251763177431329) internal successors, (26978), 21568 states have internal predecessors, (26978), 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) [2021-11-06 15:04:09,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21569 states to 21569 states and 26978 transitions. [2021-11-06 15:04:09,750 INFO L78 Accepts]: Start accepts. Automaton has 21569 states and 26978 transitions. Word has length 42 [2021-11-06 15:04:09,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:04:09,752 INFO L470 AbstractCegarLoop]: Abstraction has 21569 states and 26978 transitions. [2021-11-06 15:04:09,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-11-06 15:04:09,752 INFO L276 IsEmpty]: Start isEmpty. Operand 21569 states and 26978 transitions. [2021-11-06 15:04:09,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-06 15:04:09,757 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:04:09,757 INFO L513 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] [2021-11-06 15:04:09,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 15:04:09,758 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-06 15:04:09,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:04:09,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1149998481, now seen corresponding path program 1 times [2021-11-06 15:04:09,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:04:09,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442825656] [2021-11-06 15:04:09,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:04:09,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:04:09,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:04:09,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:04:09,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:04:09,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442825656] [2021-11-06 15:04:09,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442825656] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:04:09,884 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:04:09,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:04:09,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648546161] [2021-11-06 15:04:09,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 15:04:09,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:04:09,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 15:04:09,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 15:04:09,886 INFO L87 Difference]: Start difference. First operand 21569 states and 26978 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-11-06 15:04:11,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:04:11,446 INFO L93 Difference]: Finished difference Result 104471 states and 130386 transitions. [2021-11-06 15:04:11,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 15:04:11,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2021-11-06 15:04:11,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:04:11,619 INFO L225 Difference]: With dead ends: 104471 [2021-11-06 15:04:11,619 INFO L226 Difference]: Without dead ends: 82937 [2021-11-06 15:04:11,661 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:04:11,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82937 states. [2021-11-06 15:04:12,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82937 to 42672. [2021-11-06 15:04:12,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42672 states, 42655 states have (on average 1.2508263978431602) internal successors, (53354), 42671 states have internal predecessors, (53354), 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) [2021-11-06 15:04:13,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42672 states to 42672 states and 53354 transitions. [2021-11-06 15:04:13,097 INFO L78 Accepts]: Start accepts. Automaton has 42672 states and 53354 transitions. Word has length 43 [2021-11-06 15:04:13,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:04:13,097 INFO L470 AbstractCegarLoop]: Abstraction has 42672 states and 53354 transitions. [2021-11-06 15:04:13,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-11-06 15:04:13,097 INFO L276 IsEmpty]: Start isEmpty. Operand 42672 states and 53354 transitions. [2021-11-06 15:04:13,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-06 15:04:13,100 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:04:13,101 INFO L513 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] [2021-11-06 15:04:13,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 15:04:13,101 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-06 15:04:13,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:04:13,102 INFO L85 PathProgramCache]: Analyzing trace with hash 91687386, now seen corresponding path program 1 times [2021-11-06 15:04:13,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:04:13,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183378100] [2021-11-06 15:04:13,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:04:13,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:04:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:04:13,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:04:13,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:04:13,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183378100] [2021-11-06 15:04:13,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183378100] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:04:13,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:04:13,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:04:13,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562848566] [2021-11-06 15:04:13,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 15:04:13,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:04:13,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 15:04:13,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 15:04:13,220 INFO L87 Difference]: Start difference. First operand 42672 states and 53354 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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) [2021-11-06 15:04:16,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:04:16,969 INFO L93 Difference]: Finished difference Result 207576 states and 259020 transitions. [2021-11-06 15:04:16,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 15:04:16,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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 44 [2021-11-06 15:04:16,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:04:17,291 INFO L225 Difference]: With dead ends: 207576 [2021-11-06 15:04:17,292 INFO L226 Difference]: Without dead ends: 164939 [2021-11-06 15:04:17,389 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:04:17,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164939 states. [2021-11-06 15:04:20,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164939 to 84483. [2021-11-06 15:04:20,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84483 states, 84466 states have (on average 1.2498283332938698) internal successors, (105568), 84482 states have internal predecessors, (105568), 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) [2021-11-06 15:04:20,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84483 states to 84483 states and 105568 transitions. [2021-11-06 15:04:20,364 INFO L78 Accepts]: Start accepts. Automaton has 84483 states and 105568 transitions. Word has length 44 [2021-11-06 15:04:20,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:04:20,364 INFO L470 AbstractCegarLoop]: Abstraction has 84483 states and 105568 transitions. [2021-11-06 15:04:20,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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) [2021-11-06 15:04:20,365 INFO L276 IsEmpty]: Start isEmpty. Operand 84483 states and 105568 transitions. [2021-11-06 15:04:20,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-06 15:04:20,369 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:04:20,369 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 15:04:20,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 15:04:20,369 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-06 15:04:20,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:04:20,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1883650530, now seen corresponding path program 1 times [2021-11-06 15:04:20,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:04:20,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699695792] [2021-11-06 15:04:20,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:04:20,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:04:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:04:20,492 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-06 15:04:20,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:04:20,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699695792] [2021-11-06 15:04:20,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699695792] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:04:20,493 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:04:20,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 15:04:20,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228866088] [2021-11-06 15:04:20,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 15:04:20,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:04:20,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 15:04:20,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:04:20,494 INFO L87 Difference]: Start difference. First operand 84483 states and 105568 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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) [2021-11-06 15:04:26,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:04:26,607 INFO L93 Difference]: Finished difference Result 292051 states and 364576 transitions. [2021-11-06 15:04:26,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 15:04:26,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 49 [2021-11-06 15:04:26,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:04:27,175 INFO L225 Difference]: With dead ends: 292051 [2021-11-06 15:04:27,175 INFO L226 Difference]: Without dead ends: 207603 [2021-11-06 15:04:27,356 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-06 15:04:27,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207603 states. [2021-11-06 15:04:31,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207603 to 84523. [2021-11-06 15:04:31,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84523 states, 84506 states have (on average 1.2497100797576504) internal successors, (105608), 84522 states have internal predecessors, (105608), 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) [2021-11-06 15:04:31,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84523 states to 84523 states and 105608 transitions. [2021-11-06 15:04:31,807 INFO L78 Accepts]: Start accepts. Automaton has 84523 states and 105608 transitions. Word has length 49 [2021-11-06 15:04:31,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:04:31,807 INFO L470 AbstractCegarLoop]: Abstraction has 84523 states and 105608 transitions. [2021-11-06 15:04:31,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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) [2021-11-06 15:04:31,807 INFO L276 IsEmpty]: Start isEmpty. Operand 84523 states and 105608 transitions. [2021-11-06 15:04:31,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-06 15:04:31,810 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:04:31,810 INFO L513 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] [2021-11-06 15:04:31,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 15:04:31,811 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-06 15:04:31,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:04:31,811 INFO L85 PathProgramCache]: Analyzing trace with hash -107730126, now seen corresponding path program 1 times [2021-11-06 15:04:31,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:04:31,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284769639] [2021-11-06 15:04:31,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:04:31,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:04:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:04:31,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:04:31,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:04:31,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284769639] [2021-11-06 15:04:31,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284769639] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:04:31,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:04:31,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:04:31,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616322925] [2021-11-06 15:04:31,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:04:31,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:04:31,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:04:31,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:04:31,937 INFO L87 Difference]: Start difference. First operand 84523 states and 105608 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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)