./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--edac--i7300_edac.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--edac--i7300_edac.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/bin/uautomizer-hJ6jxDFKc3 --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 26a89703ac59399b898e3496abf8808882b63bb3 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:37:04,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:37:04,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:37:04,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:37:04,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:37:04,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:37:04,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:37:04,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:37:04,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:37:04,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:37:04,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:37:04,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:37:04,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:37:04,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:37:04,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:37:04,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:37:04,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:37:04,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:37:04,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:37:04,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:37:04,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:37:04,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:37:04,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:37:04,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:37:04,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:37:04,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:37:04,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:37:04,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:37:04,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:37:04,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:37:04,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:37:04,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:37:04,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:37:04,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:37:04,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:37:04,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:37:04,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:37:04,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:37:04,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:37:04,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:37:04,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:37:04,198 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-10-15 19:37:04,243 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:37:04,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:37:04,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:37:04,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:37:04,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:37:04,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:37:04,246 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:37:04,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:37:04,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:37:04,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:37:04,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:37:04,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:37:04,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:37:04,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:37:04,248 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:37:04,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:37:04,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:37:04,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:37:04,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:37:04,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:37:04,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:37:04,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:37:04,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:37:04,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:37:04,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:37:04,251 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:37:04,251 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:37:04,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:37:04,252 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:37:04,254 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26a89703ac59399b898e3496abf8808882b63bb3 [2021-10-15 19:37:04,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:37:04,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:37:04,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:37:04,513 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:37:04,516 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:37:04,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--edac--i7300_edac.ko-main.cil.out.i [2021-10-15 19:37:04,617 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/bin/uautomizer-hJ6jxDFKc3/data/87fe09140/c6f9841d35974ad1aa0cdc10b920063f/FLAGcb0013278 [2021-10-15 19:37:05,409 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:37:05,410 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--edac--i7300_edac.ko-main.cil.out.i [2021-10-15 19:37:05,449 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/bin/uautomizer-hJ6jxDFKc3/data/87fe09140/c6f9841d35974ad1aa0cdc10b920063f/FLAGcb0013278 [2021-10-15 19:37:05,959 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/bin/uautomizer-hJ6jxDFKc3/data/87fe09140/c6f9841d35974ad1aa0cdc10b920063f [2021-10-15 19:37:05,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:37:05,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:37:05,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:37:05,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:37:05,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:37:05,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:37:05" (1/1) ... [2021-10-15 19:37:05,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bef2f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:05, skipping insertion in model container [2021-10-15 19:37:05,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:37:05" (1/1) ... [2021-10-15 19:37:05,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:37:06,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:37:07,014 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--edac--i7300_edac.ko-main.cil.out.i[131416,131429] [2021-10-15 19:37:07,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:37:07,104 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:37:07,436 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--edac--i7300_edac.ko-main.cil.out.i[131416,131429] [2021-10-15 19:37:07,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:37:07,504 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:37:07,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:07 WrapperNode [2021-10-15 19:37:07,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:37:07,506 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:37:07,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:37:07,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:37:07,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:07" (1/1) ... [2021-10-15 19:37:07,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:07" (1/1) ... [2021-10-15 19:37:07,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:37:07,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:37:07,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:37:07,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:37:07,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:07" (1/1) ... [2021-10-15 19:37:07,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:07" (1/1) ... [2021-10-15 19:37:07,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:07" (1/1) ... [2021-10-15 19:37:07,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:07" (1/1) ... [2021-10-15 19:37:07,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:07" (1/1) ... [2021-10-15 19:37:07,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:07" (1/1) ... [2021-10-15 19:37:07,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:07" (1/1) ... [2021-10-15 19:37:07,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:37:07,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:37:07,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:37:07,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:37:07,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:07" (1/1) ... [2021-10-15 19:37:07,971 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:37:07,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:37:08,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:37:08,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:37:08,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 19:37:08,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 19:37:08,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-15 19:37:08,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-15 19:37:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:37:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-15 19:37:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 19:37:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-15 19:37:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:37:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:37:08,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:37:18,381 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:37:18,386 INFO L299 CfgBuilder]: Removed 244 assume(true) statements. [2021-10-15 19:37:18,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:37:18 BoogieIcfgContainer [2021-10-15 19:37:18,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:37:18,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:37:18,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:37:18,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:37:18,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:37:05" (1/3) ... [2021-10-15 19:37:18,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a613226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:37:18, skipping insertion in model container [2021-10-15 19:37:18,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:07" (2/3) ... [2021-10-15 19:37:18,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a613226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:37:18, skipping insertion in model container [2021-10-15 19:37:18,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:37:18" (3/3) ... [2021-10-15 19:37:18,402 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--edac--i7300_edac.ko-main.cil.out.i [2021-10-15 19:37:18,410 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:37:18,410 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-15 19:37:18,475 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:37:18,485 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, mConcurrency=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 [2021-10-15 19:37:18,485 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-15 19:37:18,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 338 places, 474 transitions, 948 flow [2021-10-15 19:37:18,674 INFO L129 PetriNetUnfolder]: 137/474 cut-off events. [2021-10-15 19:37:18,674 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:37:18,678 INFO L84 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 474 events. 137/474 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1164 event pairs, 0 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2021-10-15 19:37:18,678 INFO L82 GeneralOperation]: Start removeDead. Operand has 338 places, 474 transitions, 948 flow [2021-10-15 19:37:18,702 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 334 places, 469 transitions, 938 flow [2021-10-15 19:37:18,714 INFO L129 PetriNetUnfolder]: 23/72 cut-off events. [2021-10-15 19:37:18,716 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:37:18,716 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:37:18,717 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:37:18,717 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:37:18,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:37:18,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1228350261, now seen corresponding path program 1 times [2021-10-15 19:37:18,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:37:18,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341482857] [2021-10-15 19:37:18,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:37:18,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:37:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:37:19,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:37:19,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:37:19,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341482857] [2021-10-15 19:37:19,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341482857] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:37:19,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:37:19,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:37:19,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142058169] [2021-10-15 19:37:19,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:37:19,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:37:19,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:37:19,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:37:19,592 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 474 [2021-10-15 19:37:19,599 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 469 transitions, 938 flow. Second operand has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 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) [2021-10-15 19:37:19,600 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:37:19,600 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 474 [2021-10-15 19:37:19,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:37:21,944 INFO L129 PetriNetUnfolder]: 244/883 cut-off events. [2021-10-15 19:37:21,945 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:37:21,947 INFO L84 FinitePrefix]: Finished finitePrefix Result has 900 conditions, 883 events. 244/883 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2851 event pairs, 0 based on Foata normal form. 16/656 useless extension candidates. Maximal degree in co-relation 412. Up to 31 conditions per place. [2021-10-15 19:37:21,953 INFO L132 encePairwiseOnDemand]: 458/474 looper letters, 11 selfloop transitions, 4 changer transitions 0/464 dead transitions. [2021-10-15 19:37:21,953 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 464 transitions, 958 flow [2021-10-15 19:37:21,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:37:21,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 19:37:21,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1393 transitions. [2021-10-15 19:37:21,973 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9796061884669479 [2021-10-15 19:37:21,974 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1393 transitions. [2021-10-15 19:37:21,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1393 transitions. [2021-10-15 19:37:21,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:37:21,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1393 transitions. [2021-10-15 19:37:21,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 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) [2021-10-15 19:37:22,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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) [2021-10-15 19:37:22,003 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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) [2021-10-15 19:37:22,006 INFO L186 Difference]: Start difference. First operand has 334 places, 469 transitions, 938 flow. Second operand 3 states and 1393 transitions. [2021-10-15 19:37:22,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 464 transitions, 958 flow [2021-10-15 19:37:22,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 464 transitions, 958 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:37:22,026 INFO L242 Difference]: Finished difference. Result has 338 places, 462 transitions, 950 flow [2021-10-15 19:37:22,029 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=920, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=950, PETRI_PLACES=338, PETRI_TRANSITIONS=462} [2021-10-15 19:37:22,030 INFO L334 CegarLoopForPetriNet]: 334 programPoint places, 4 predicate places. [2021-10-15 19:37:22,030 INFO L470 AbstractCegarLoop]: Abstraction has has 338 places, 462 transitions, 950 flow [2021-10-15 19:37:22,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 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) [2021-10-15 19:37:22,032 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:37:22,033 INFO L254 CegarLoopForPetriNet]: 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] [2021-10-15 19:37:22,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 19:37:22,033 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:37:22,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:37:22,034 INFO L82 PathProgramCache]: Analyzing trace with hash 2072852156, now seen corresponding path program 1 times [2021-10-15 19:37:22,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:37:22,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842472662] [2021-10-15 19:37:22,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:37:22,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:37:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:37:22,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:37:22,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:37:22,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842472662] [2021-10-15 19:37:22,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842472662] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:37:22,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:37:22,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 19:37:22,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798446826] [2021-10-15 19:37:22,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-15 19:37:22,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:37:22,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 19:37:22,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:37:22,347 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 474 [2021-10-15 19:37:22,352 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 462 transitions, 950 flow. Second operand has 5 states, 5 states have (on average 455.4) internal successors, (2277), 5 states have internal predecessors, (2277), 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) [2021-10-15 19:37:22,352 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:37:22,354 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 474 [2021-10-15 19:37:22,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:37:22,618 INFO L129 PetriNetUnfolder]: 361/1330 cut-off events. [2021-10-15 19:37:22,618 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-10-15 19:37:22,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1370 conditions, 1330 events. 361/1330 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5591 event pairs, 0 based on Foata normal form. 3/972 useless extension candidates. Maximal degree in co-relation 452. Up to 47 conditions per place. [2021-10-15 19:37:22,625 INFO L132 encePairwiseOnDemand]: 465/474 looper letters, 10 selfloop transitions, 7 changer transitions 0/467 dead transitions. [2021-10-15 19:37:22,626 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 467 transitions, 1000 flow [2021-10-15 19:37:22,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 19:37:22,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-15 19:37:22,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2289 transitions. [2021-10-15 19:37:22,638 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9658227848101266 [2021-10-15 19:37:22,638 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2289 transitions. [2021-10-15 19:37:22,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2289 transitions. [2021-10-15 19:37:22,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:37:22,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2289 transitions. [2021-10-15 19:37:22,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 457.8) internal successors, (2289), 5 states have internal predecessors, (2289), 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) [2021-10-15 19:37:22,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 474.0) internal successors, (2844), 6 states have internal predecessors, (2844), 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) [2021-10-15 19:37:22,662 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 474.0) internal successors, (2844), 6 states have internal predecessors, (2844), 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) [2021-10-15 19:37:22,662 INFO L186 Difference]: Start difference. First operand has 338 places, 462 transitions, 950 flow. Second operand 5 states and 2289 transitions. [2021-10-15 19:37:22,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 467 transitions, 1000 flow [2021-10-15 19:37:22,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 467 transitions, 988 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-15 19:37:22,689 INFO L242 Difference]: Finished difference. Result has 344 places, 466 transitions, 992 flow [2021-10-15 19:37:22,690 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=992, PETRI_PLACES=344, PETRI_TRANSITIONS=466} [2021-10-15 19:37:22,690 INFO L334 CegarLoopForPetriNet]: 334 programPoint places, 10 predicate places. [2021-10-15 19:37:22,691 INFO L470 AbstractCegarLoop]: Abstraction has has 344 places, 466 transitions, 992 flow [2021-10-15 19:37:22,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 455.4) internal successors, (2277), 5 states have internal predecessors, (2277), 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) [2021-10-15 19:37:22,694 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:37:22,694 INFO L254 CegarLoopForPetriNet]: 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] [2021-10-15 19:37:22,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-15 19:37:22,694 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:37:22,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:37:22,695 INFO L82 PathProgramCache]: Analyzing trace with hash -447107778, now seen corresponding path program 1 times [2021-10-15 19:37:22,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:37:22,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358852059] [2021-10-15 19:37:22,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:37:22,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:37:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:37:23,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:37:23,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:37:23,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358852059] [2021-10-15 19:37:23,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358852059] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:37:23,042 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:37:23,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:37:23,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857706660] [2021-10-15 19:37:23,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:37:23,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:37:23,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:37:23,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:37:23,048 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 474 [2021-10-15 19:37:23,052 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 466 transitions, 992 flow. Second operand has 3 states, 3 states have (on average 461.0) internal successors, (1383), 3 states have internal predecessors, (1383), 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) [2021-10-15 19:37:23,052 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:37:23,052 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 474 [2021-10-15 19:37:23,052 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:37:25,391 INFO L129 PetriNetUnfolder]: 361/1324 cut-off events. [2021-10-15 19:37:25,391 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-10-15 19:37:25,393 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1370 conditions, 1324 events. 361/1324 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 5528 event pairs, 0 based on Foata normal form. 0/967 useless extension candidates. Maximal degree in co-relation 1336. Up to 47 conditions per place. [2021-10-15 19:37:25,399 INFO L132 encePairwiseOnDemand]: 472/474 looper letters, 2 selfloop transitions, 1 changer transitions 0/464 dead transitions. [2021-10-15 19:37:25,399 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 464 transitions, 994 flow [2021-10-15 19:37:25,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:37:25,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 19:37:25,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1384 transitions. [2021-10-15 19:37:25,404 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9732770745428974 [2021-10-15 19:37:25,404 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1384 transitions. [2021-10-15 19:37:25,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1384 transitions. [2021-10-15 19:37:25,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:37:25,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1384 transitions. [2021-10-15 19:37:25,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 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) [2021-10-15 19:37:25,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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) [2021-10-15 19:37:25,417 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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) [2021-10-15 19:37:25,417 INFO L186 Difference]: Start difference. First operand has 344 places, 466 transitions, 992 flow. Second operand 3 states and 1384 transitions. [2021-10-15 19:37:25,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 464 transitions, 994 flow [2021-10-15 19:37:25,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 464 transitions, 994 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:37:25,430 INFO L242 Difference]: Finished difference. Result has 344 places, 464 transitions, 990 flow [2021-10-15 19:37:25,431 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=988, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=990, PETRI_PLACES=344, PETRI_TRANSITIONS=464} [2021-10-15 19:37:25,432 INFO L334 CegarLoopForPetriNet]: 334 programPoint places, 10 predicate places. [2021-10-15 19:37:25,432 INFO L470 AbstractCegarLoop]: Abstraction has has 344 places, 464 transitions, 990 flow [2021-10-15 19:37:25,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.0) internal successors, (1383), 3 states have internal predecessors, (1383), 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) [2021-10-15 19:37:25,434 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:37:25,434 INFO L254 CegarLoopForPetriNet]: 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] [2021-10-15 19:37:25,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-15 19:37:25,434 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:37:25,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:37:25,435 INFO L82 PathProgramCache]: Analyzing trace with hash -975439786, now seen corresponding path program 1 times [2021-10-15 19:37:25,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:37:25,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705491075] [2021-10-15 19:37:25,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:37:25,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:37:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:37:25,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:37:25,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:37:25,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705491075] [2021-10-15 19:37:25,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705491075] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:37:25,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:37:25,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:37:25,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350755691] [2021-10-15 19:37:25,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:37:25,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:37:25,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:37:25,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:37:25,669 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 474 [2021-10-15 19:37:25,672 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 464 transitions, 990 flow. Second operand has 3 states, 3 states have (on average 461.0) internal successors, (1383), 3 states have internal predecessors, (1383), 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) [2021-10-15 19:37:25,672 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:37:25,672 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 474 [2021-10-15 19:37:25,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:37:28,013 INFO L129 PetriNetUnfolder]: 361/1318 cut-off events. [2021-10-15 19:37:28,013 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-10-15 19:37:28,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1366 conditions, 1318 events. 361/1318 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 5487 event pairs, 0 based on Foata normal form. 0/964 useless extension candidates. Maximal degree in co-relation 1351. Up to 47 conditions per place. [2021-10-15 19:37:28,020 INFO L132 encePairwiseOnDemand]: 472/474 looper letters, 2 selfloop transitions, 1 changer transitions 0/462 dead transitions. [2021-10-15 19:37:28,021 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 462 transitions, 992 flow [2021-10-15 19:37:28,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:37:28,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 19:37:28,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1384 transitions. [2021-10-15 19:37:28,026 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9732770745428974 [2021-10-15 19:37:28,026 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1384 transitions. [2021-10-15 19:37:28,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1384 transitions. [2021-10-15 19:37:28,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:37:28,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1384 transitions. [2021-10-15 19:37:28,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 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) [2021-10-15 19:37:28,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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) [2021-10-15 19:37:28,039 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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) [2021-10-15 19:37:28,039 INFO L186 Difference]: Start difference. First operand has 344 places, 464 transitions, 990 flow. Second operand 3 states and 1384 transitions. [2021-10-15 19:37:28,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 462 transitions, 992 flow [2021-10-15 19:37:28,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 462 transitions, 991 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-15 19:37:28,052 INFO L242 Difference]: Finished difference. Result has 343 places, 462 transitions, 987 flow [2021-10-15 19:37:28,053 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=985, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=987, PETRI_PLACES=343, PETRI_TRANSITIONS=462} [2021-10-15 19:37:28,053 INFO L334 CegarLoopForPetriNet]: 334 programPoint places, 9 predicate places. [2021-10-15 19:37:28,053 INFO L470 AbstractCegarLoop]: Abstraction has has 343 places, 462 transitions, 987 flow [2021-10-15 19:37:28,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.0) internal successors, (1383), 3 states have internal predecessors, (1383), 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) [2021-10-15 19:37:28,055 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:37:28,055 INFO L254 CegarLoopForPetriNet]: 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] [2021-10-15 19:37:28,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-15 19:37:28,056 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:37:28,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:37:28,056 INFO L82 PathProgramCache]: Analyzing trace with hash -173862840, now seen corresponding path program 1 times [2021-10-15 19:37:28,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:37:28,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106583083] [2021-10-15 19:37:28,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:37:28,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:37:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:37:28,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:37:28,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:37:28,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106583083] [2021-10-15 19:37:28,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106583083] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:37:28,290 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:37:28,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:37:28,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458845015] [2021-10-15 19:37:28,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:37:28,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:37:28,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:37:28,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:37:28,295 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 474 [2021-10-15 19:37:28,297 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 462 transitions, 987 flow. Second operand has 3 states, 3 states have (on average 461.0) internal successors, (1383), 3 states have internal predecessors, (1383), 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) [2021-10-15 19:37:28,298 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:37:28,298 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 474 [2021-10-15 19:37:28,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:37:30,461 INFO L129 PetriNetUnfolder]: 361/1312 cut-off events. [2021-10-15 19:37:30,461 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-10-15 19:37:30,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1358 conditions, 1312 events. 361/1312 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 5428 event pairs, 0 based on Foata normal form. 3/961 useless extension candidates. Maximal degree in co-relation 1342. Up to 47 conditions per place. [2021-10-15 19:37:30,465 INFO L132 encePairwiseOnDemand]: 472/474 looper letters, 0 selfloop transitions, 0 changer transitions 460/460 dead transitions. [2021-10-15 19:37:30,466 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 460 transitions, 987 flow [2021-10-15 19:37:30,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:37:30,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 19:37:30,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1383 transitions. [2021-10-15 19:37:30,638 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9725738396624473 [2021-10-15 19:37:30,639 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1383 transitions. [2021-10-15 19:37:30,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1383 transitions. [2021-10-15 19:37:30,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:37:30,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1383 transitions. [2021-10-15 19:37:30,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.0) internal successors, (1383), 3 states have internal predecessors, (1383), 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) [2021-10-15 19:37:30,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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) [2021-10-15 19:37:30,654 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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) [2021-10-15 19:37:30,654 INFO L186 Difference]: Start difference. First operand has 343 places, 462 transitions, 987 flow. Second operand 3 states and 1383 transitions. [2021-10-15 19:37:30,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 460 transitions, 987 flow [2021-10-15 19:37:30,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 460 transitions, 986 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-15 19:37:30,665 INFO L242 Difference]: Finished difference. Result has 342 places, 0 transitions, 0 flow [2021-10-15 19:37:30,666 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=982, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=342, PETRI_TRANSITIONS=0} [2021-10-15 19:37:30,666 INFO L334 CegarLoopForPetriNet]: 334 programPoint places, 8 predicate places. [2021-10-15 19:37:30,666 INFO L470 AbstractCegarLoop]: Abstraction has has 342 places, 0 transitions, 0 flow [2021-10-15 19:37:30,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.0) internal successors, (1383), 3 states have internal predecessors, (1383), 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) [2021-10-15 19:37:30,672 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:37:30,672 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:37:30,673 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:37:30,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-15 19:37:30,679 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:37:30,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:37:30 BoogieIcfgContainer [2021-10-15 19:37:30,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:37:30,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:37:30,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:37:30,690 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:37:30,691 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:37:18" (3/4) ... [2021-10-15 19:37:30,696 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-15 19:37:30,750 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 295 nodes and edges [2021-10-15 19:37:30,755 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 117 nodes and edges [2021-10-15 19:37:30,760 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2021-10-15 19:37:30,763 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-15 19:37:30,766 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-15 19:37:30,770 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-15 19:37:30,773 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-15 19:37:30,777 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:37:31,045 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:37:31,045 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:37:31,047 INFO L168 Benchmark]: Toolchain (without parser) took 25082.13 ms. Allocated memory was 119.5 MB in the beginning and 390.1 MB in the end (delta: 270.5 MB). Free memory was 86.0 MB in the beginning and 213.9 MB in the end (delta: -127.9 MB). Peak memory consumption was 142.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:37:31,047 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 119.5 MB. Free memory is still 72.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:37:31,047 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1540.17 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 85.7 MB in the beginning and 80.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 16.1 GB. [2021-10-15 19:37:31,048 INFO L168 Benchmark]: Boogie Procedure Inliner took 179.21 ms. Allocated memory is still 144.7 MB. Free memory was 80.0 MB in the beginning and 67.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:37:31,048 INFO L168 Benchmark]: Boogie Preprocessor took 255.69 ms. Allocated memory is still 144.7 MB. Free memory was 67.4 MB in the beginning and 88.7 MB in the end (delta: -21.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2021-10-15 19:37:31,049 INFO L168 Benchmark]: RCFGBuilder took 10448.35 ms. Allocated memory was 144.7 MB in the beginning and 325.1 MB in the end (delta: 180.4 MB). Free memory was 88.7 MB in the beginning and 95.6 MB in the end (delta: -7.0 MB). Peak memory consumption was 199.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:37:31,049 INFO L168 Benchmark]: TraceAbstraction took 12297.10 ms. Allocated memory was 325.1 MB in the beginning and 390.1 MB in the end (delta: 65.0 MB). Free memory was 94.6 MB in the beginning and 272.6 MB in the end (delta: -178.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:37:31,049 INFO L168 Benchmark]: Witness Printer took 355.11 ms. Allocated memory is still 390.1 MB. Free memory was 272.6 MB in the beginning and 213.9 MB in the end (delta: 58.7 MB). Peak memory consumption was 58.7 MB. Max. memory is 16.1 GB. [2021-10-15 19:37:31,051 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 119.5 MB. Free memory is still 72.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1540.17 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 85.7 MB in the beginning and 80.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 179.21 ms. Allocated memory is still 144.7 MB. Free memory was 80.0 MB in the beginning and 67.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 255.69 ms. Allocated memory is still 144.7 MB. Free memory was 67.4 MB in the beginning and 88.7 MB in the end (delta: -21.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10448.35 ms. Allocated memory was 144.7 MB in the beginning and 325.1 MB in the end (delta: 180.4 MB). Free memory was 88.7 MB in the beginning and 95.6 MB in the end (delta: -7.0 MB). Peak memory consumption was 199.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12297.10 ms. Allocated memory was 325.1 MB in the beginning and 390.1 MB in the end (delta: 65.0 MB). Free memory was 94.6 MB in the beginning and 272.6 MB in the end (delta: -178.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 355.11 ms. Allocated memory is still 390.1 MB. Free memory was 272.6 MB in the beginning and 213.9 MB in the end (delta: 58.7 MB). Peak memory consumption was 58.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 4510]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 4510]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 4510]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 338 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 6.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 12209.2ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 9945.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 223.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 21 SDtfs, 16 SDslu, 13 SDs, 0 SdLazy, 30 SolverSat, 10 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 8365.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 70.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=992occurred in iteration=2, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 126.3ms SsaConstructionTime, 715.5ms SatisfiabilityAnalysisTime, 870.1ms InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 258 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-15 19:37:31,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55fe42f2-2d90-4cff-8bce-5727b91e6743/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...