./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---kernel--locking--locktorture.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---kernel--locking--locktorture.ko.cil.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer --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 669263f08518bb1cf8ceaa519dbf74e3653f2407 ........................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---kernel--locking--locktorture.ko.cil.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer --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 669263f08518bb1cf8ceaa519dbf74e3653f2407 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 21:28:49,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:28:49,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:28:49,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:28:49,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:28:49,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:28:49,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:28:49,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:28:49,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:28:49,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:28:49,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:28:49,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:28:49,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:28:49,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:28:49,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:28:49,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:28:49,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:28:49,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:28:49,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:28:49,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:28:49,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:28:49,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:28:49,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:28:49,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:28:49,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:28:49,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:28:49,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:28:49,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:28:49,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:28:49,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:28:49,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:28:49,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:28:49,954 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:28:49,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:28:49,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:28:49,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:28:49,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:28:49,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:28:49,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:28:49,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:28:49,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:28:49,963 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-11-29 21:28:50,000 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:28:50,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:28:50,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:28:50,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:28:50,005 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:28:50,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:28:50,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:28:50,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:28:50,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:28:50,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:28:50,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:28:50,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:28:50,007 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:28:50,008 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:28:50,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:28:50,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:28:50,008 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:28:50,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:28:50,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:28:50,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:28:50,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:28:50,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:28:50,009 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:28:50,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:28:50,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:28:50,010 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:28:50,010 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 21:28:50,011 INFO L138 SettingsManager]: * To the following directory=dump/ 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-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 669263f08518bb1cf8ceaa519dbf74e3653f2407 [2020-11-29 21:28:50,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:28:50,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:28:50,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:28:50,369 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:28:50,370 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:28:50,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---kernel--locking--locktorture.ko.cil.i [2020-11-29 21:28:50,461 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/data/ebb0f126d/c03bd1d0a82d497ca8f239202166538b/FLAGe94103347 [2020-11-29 21:28:51,335 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:28:51,336 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---kernel--locking--locktorture.ko.cil.i [2020-11-29 21:28:51,379 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/data/ebb0f126d/c03bd1d0a82d497ca8f239202166538b/FLAGe94103347 [2020-11-29 21:28:51,897 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/data/ebb0f126d/c03bd1d0a82d497ca8f239202166538b [2020-11-29 21:28:51,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:28:51,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:28:51,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:28:51,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:28:51,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:28:51,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:28:51" (1/1) ... [2020-11-29 21:28:51,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142b8750 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:28:51, skipping insertion in model container [2020-11-29 21:28:51,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:28:51" (1/1) ... [2020-11-29 21:28:51,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:28:52,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:28:54,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:28:54,511 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:28:54,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:28:55,467 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:28:55,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:28:55 WrapperNode [2020-11-29 21:28:55,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:28:55,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:28:55,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:28:55,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:28:55,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:28:55" (1/1) ... [2020-11-29 21:28:55,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:28:55" (1/1) ... [2020-11-29 21:28:55,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:28:55,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:28:55,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:28:55,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:28:55,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:28:55" (1/1) ... [2020-11-29 21:28:55,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:28:55" (1/1) ... [2020-11-29 21:28:55,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:28:55" (1/1) ... [2020-11-29 21:28:55,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:28:55" (1/1) ... [2020-11-29 21:28:55,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:28:55" (1/1) ... [2020-11-29 21:28:55,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:28:55" (1/1) ... [2020-11-29 21:28:56,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:28:55" (1/1) ... [2020-11-29 21:28:56,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:28:56,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:28:56,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:28:56,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:28:56,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:28:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:28:56,187 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2020-11-29 21:28:56,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 21:28:56,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 21:28:56,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 21:28:56,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 21:28:56,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:28:56,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:28:56,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:28:56,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 21:28:56,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-29 21:28:56,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 21:28:56,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:29:03,591 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_6_returnLabel: main_#res := 0; [2020-11-29 21:29:03,592 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-11-29 21:29:03,593 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5507: #t~ret506 := main_#res; [2020-11-29 21:29:03,623 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:29:03,624 INFO L298 CfgBuilder]: Removed 1425 assume(true) statements. [2020-11-29 21:29:03,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:29:03 BoogieIcfgContainer [2020-11-29 21:29:03,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:29:03,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:29:03,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:29:03,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:29:03,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:28:51" (1/3) ... [2020-11-29 21:29:03,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724b196d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:29:03, skipping insertion in model container [2020-11-29 21:29:03,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:28:55" (2/3) ... [2020-11-29 21:29:03,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724b196d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:29:03, skipping insertion in model container [2020-11-29 21:29:03,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:29:03" (3/3) ... [2020-11-29 21:29:03,638 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---kernel--locking--locktorture.ko.cil.i [2020-11-29 21:29:03,649 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:29:03,654 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 92 error locations. [2020-11-29 21:29:03,665 INFO L253 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2020-11-29 21:29:03,707 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:29:03,708 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:29:03,708 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:29:03,708 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:29:03,708 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:29:03,708 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:29:03,709 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:29:03,709 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:29:03,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states. [2020-11-29 21:29:03,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 21:29:03,767 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:29:03,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:29:03,769 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr82ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr73ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr77ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr78ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr64ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr87ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr72ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr91ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr81ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr74ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr56ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr86ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr65ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr90ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr69ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr89ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr66ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr75ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr80ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr85ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr70ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr67ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr83ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr76ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr79ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr71ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr88ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:29:03,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:29:03,775 INFO L82 PathProgramCache]: Analyzing trace with hash -225208565, now seen corresponding path program 1 times [2020-11-29 21:29:03,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:29:03,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349537959] [2020-11-29 21:29:03,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:29:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:29:04,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:29:04,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349537959] [2020-11-29 21:29:04,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:29:04,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:29:04,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813036323] [2020-11-29 21:29:04,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:29:04,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:29:04,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:29:04,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:29:04,585 INFO L87 Difference]: Start difference. First operand 1328 states. Second operand 3 states. [2020-11-29 21:29:04,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:29:04,935 INFO L93 Difference]: Finished difference Result 3964 states and 5516 transitions. [2020-11-29 21:29:04,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:29:04,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-29 21:29:04,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:29:04,980 INFO L225 Difference]: With dead ends: 3964 [2020-11-29 21:29:04,980 INFO L226 Difference]: Without dead ends: 2540 [2020-11-29 21:29:04,992 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:29:05,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2540 states. [2020-11-29 21:29:05,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2540 to 1279. [2020-11-29 21:29:05,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1279 states. [2020-11-29 21:29:05,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1562 transitions. [2020-11-29 21:29:05,129 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1562 transitions. Word has length 17 [2020-11-29 21:29:05,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:29:05,130 INFO L481 AbstractCegarLoop]: Abstraction has 1279 states and 1562 transitions. [2020-11-29 21:29:05,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:29:05,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1562 transitions. [2020-11-29 21:29:05,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 21:29:05,131 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:29:05,132 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:29:05,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 21:29:05,133 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr82ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr73ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr77ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr78ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr64ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr87ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr72ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr91ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr81ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr74ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr56ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr86ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr65ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr90ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr69ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr89ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr66ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr75ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr80ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr85ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr70ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr67ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr83ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr76ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr79ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr71ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr88ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:29:05,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:29:05,134 INFO L82 PathProgramCache]: Analyzing trace with hash -779042294, now seen corresponding path program 1 times [2020-11-29 21:29:05,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:29:05,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615224949] [2020-11-29 21:29:05,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:29:06,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:29:07,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:29:07,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615224949] [2020-11-29 21:29:07,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:29:07,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 21:29:07,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848546460] [2020-11-29 21:29:07,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 21:29:07,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:29:07,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 21:29:07,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:29:07,188 INFO L87 Difference]: Start difference. First operand 1279 states and 1562 transitions. Second operand 7 states. [2020-11-29 21:29:13,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:29:13,904 INFO L93 Difference]: Finished difference Result 4610 states and 5593 transitions. [2020-11-29 21:29:13,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-29 21:29:13,906 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-29 21:29:13,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:29:13,924 INFO L225 Difference]: With dead ends: 4610 [2020-11-29 21:29:13,925 INFO L226 Difference]: Without dead ends: 3514 [2020-11-29 21:29:13,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-11-29 21:29:13,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3514 states. [2020-11-29 21:29:13,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3514 to 1286. [2020-11-29 21:29:13,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1286 states. [2020-11-29 21:29:14,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1575 transitions. [2020-11-29 21:29:14,004 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1575 transitions. Word has length 19 [2020-11-29 21:29:14,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:29:14,005 INFO L481 AbstractCegarLoop]: Abstraction has 1286 states and 1575 transitions. [2020-11-29 21:29:14,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 21:29:14,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1575 transitions. [2020-11-29 21:29:14,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 21:29:14,007 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:29:14,007 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:29:14,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 21:29:14,008 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr82ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr73ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr77ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr78ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr64ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr87ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr72ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr91ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr81ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr74ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr56ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr86ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr65ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr90ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr69ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr89ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr66ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr75ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr80ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr85ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr70ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr67ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr83ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr76ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr79ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr71ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr88ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:29:14,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:29:14,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1639531710, now seen corresponding path program 1 times [2020-11-29 21:29:14,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:29:14,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068272997] [2020-11-29 21:29:14,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:29:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:29:15,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:29:15,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068272997] [2020-11-29 21:29:15,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:29:15,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 21:29:15,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106832171] [2020-11-29 21:29:15,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 21:29:15,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:29:15,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 21:29:15,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-11-29 21:29:15,579 INFO L87 Difference]: Start difference. First operand 1286 states and 1575 transitions. Second operand 8 states. [2020-11-29 21:29:22,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:29:22,982 INFO L93 Difference]: Finished difference Result 6692 states and 8109 transitions. [2020-11-29 21:29:22,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-29 21:29:22,983 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2020-11-29 21:29:22,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:29:23,013 INFO L225 Difference]: With dead ends: 6692 [2020-11-29 21:29:23,013 INFO L226 Difference]: Without dead ends: 5596 [2020-11-29 21:29:23,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-11-29 21:29:23,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5596 states. [2020-11-29 21:29:23,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5596 to 1287. [2020-11-29 21:29:23,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1287 states. [2020-11-29 21:29:23,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1576 transitions. [2020-11-29 21:29:23,100 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1576 transitions. Word has length 20 [2020-11-29 21:29:23,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:29:23,101 INFO L481 AbstractCegarLoop]: Abstraction has 1287 states and 1576 transitions. [2020-11-29 21:29:23,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 21:29:23,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1576 transitions. [2020-11-29 21:29:23,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 21:29:23,107 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:29:23,107 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:29:23,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 21:29:23,108 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr82ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr73ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr77ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr78ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr64ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr87ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr72ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr91ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr81ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr74ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr56ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr86ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr65ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr90ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr69ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr89ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr66ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr75ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr80ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr85ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr70ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr67ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr83ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr76ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr79ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr71ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr88ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:29:23,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:29:23,110 INFO L82 PathProgramCache]: Analyzing trace with hash -695039775, now seen corresponding path program 1 times [2020-11-29 21:29:23,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:29:23,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632391987] [2020-11-29 21:29:23,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:29:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:29:24,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:29:24,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632391987] [2020-11-29 21:29:24,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:29:24,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 21:29:24,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734418581] [2020-11-29 21:29:24,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 21:29:24,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:29:24,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 21:29:24,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-11-29 21:29:24,187 INFO L87 Difference]: Start difference. First operand 1287 states and 1576 transitions. Second operand 8 states. [2020-11-29 21:29:31,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:29:31,203 INFO L93 Difference]: Finished difference Result 6682 states and 8097 transitions. [2020-11-29 21:29:31,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-29 21:29:31,215 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-11-29 21:29:31,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:29:31,242 INFO L225 Difference]: With dead ends: 6682 [2020-11-29 21:29:31,242 INFO L226 Difference]: Without dead ends: 5586 [2020-11-29 21:29:31,246 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-11-29 21:29:31,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5586 states. [2020-11-29 21:29:31,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5586 to 1288. [2020-11-29 21:29:31,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1288 states. [2020-11-29 21:29:31,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1577 transitions. [2020-11-29 21:29:31,326 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1577 transitions. Word has length 21 [2020-11-29 21:29:31,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:29:31,327 INFO L481 AbstractCegarLoop]: Abstraction has 1288 states and 1577 transitions. [2020-11-29 21:29:31,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 21:29:31,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1577 transitions. [2020-11-29 21:29:31,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 21:29:31,329 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:29:31,330 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:29:31,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 21:29:31,330 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr82ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr73ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr77ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr78ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr64ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr87ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr72ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr91ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr81ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr74ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr56ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr86ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr65ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr90ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr69ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr89ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr66ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr75ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr80ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr85ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr70ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr67ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr83ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr76ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr79ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr71ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr88ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:29:31,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:29:31,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1062235371, now seen corresponding path program 1 times [2020-11-29 21:29:31,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:29:31,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717321044] [2020-11-29 21:29:31,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:29:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:29:32,016 ERROR L253 erpolLogProxyWrapper]: Symbol error in Interpolant 3: A-local: [(|#memory_$Pointer$.offset_-1| (Array Int (Array Int Int)))], B-local: []. [2020-11-29 21:29:32,025 ERROR L253 erpolLogProxyWrapper]: Symbol error in Interpolant 4: A-local: [(|#memory_$Pointer$.offset_-1| (Array Int (Array Int Int)))], B-local: []. [2020-11-29 21:29:32,029 ERROR L253 erpolLogProxyWrapper]: Symbol error in Interpolant 5: A-local: [(|#memory_$Pointer$.offset_-1| (Array Int (Array Int Int)))], B-local: []. [2020-11-29 21:29:32,031 ERROR L253 erpolLogProxyWrapper]: Symbol error in Interpolant 6: A-local: [(|#memory_$Pointer$.offset_-1| (Array Int (Array Int Int)))], B-local: []. [2020-11-29 21:29:32,042 ERROR L253 erpolLogProxyWrapper]: Symbol error in Interpolant 7: A-local: [(|#memory_$Pointer$.offset_-1| (Array Int (Array Int Int)))], B-local: []. [2020-11-29 21:29:32,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 21:29:32,085 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:876) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-29 21:29:32,098 INFO L168 Benchmark]: Toolchain (without parser) took 40193.81 ms. Allocated memory was 77.6 MB in the beginning and 692.1 MB in the end (delta: 614.5 MB). Free memory was 36.4 MB in the beginning and 366.5 MB in the end (delta: -330.2 MB). Peak memory consumption was 282.8 MB. Max. memory is 16.1 GB. [2020-11-29 21:29:32,099 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 77.6 MB. Free memory was 37.4 MB in the beginning and 37.4 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:29:32,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3563.08 ms. Allocated memory was 77.6 MB in the beginning and 119.5 MB in the end (delta: 41.9 MB). Free memory was 36.4 MB in the beginning and 38.8 MB in the end (delta: -2.5 MB). Peak memory consumption was 48.6 MB. Max. memory is 16.1 GB. [2020-11-29 21:29:32,102 INFO L168 Benchmark]: Boogie Procedure Inliner took 342.19 ms. Allocated memory is still 119.5 MB. Free memory was 38.8 MB in the beginning and 49.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:29:32,103 INFO L168 Benchmark]: Boogie Preprocessor took 283.49 ms. Allocated memory was 119.5 MB in the beginning and 165.7 MB in the end (delta: 46.1 MB). Free memory was 49.5 MB in the beginning and 97.8 MB in the end (delta: -48.3 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. [2020-11-29 21:29:32,104 INFO L168 Benchmark]: RCFGBuilder took 7519.81 ms. Allocated memory was 165.7 MB in the beginning and 331.4 MB in the end (delta: 165.7 MB). Free memory was 97.8 MB in the beginning and 81.1 MB in the end (delta: 16.7 MB). Peak memory consumption was 183.9 MB. Max. memory is 16.1 GB. [2020-11-29 21:29:32,106 INFO L168 Benchmark]: TraceAbstraction took 28462.48 ms. Allocated memory was 331.4 MB in the beginning and 692.1 MB in the end (delta: 360.7 MB). Free memory was 80.1 MB in the beginning and 366.5 MB in the end (delta: -286.5 MB). Peak memory consumption was 74.3 MB. Max. memory is 16.1 GB. [2020-11-29 21:29:32,110 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 77.6 MB. Free memory was 37.4 MB in the beginning and 37.4 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3563.08 ms. Allocated memory was 77.6 MB in the beginning and 119.5 MB in the end (delta: 41.9 MB). Free memory was 36.4 MB in the beginning and 38.8 MB in the end (delta: -2.5 MB). Peak memory consumption was 48.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 342.19 ms. Allocated memory is still 119.5 MB. Free memory was 38.8 MB in the beginning and 49.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 283.49 ms. Allocated memory was 119.5 MB in the beginning and 165.7 MB in the end (delta: 46.1 MB). Free memory was 49.5 MB in the beginning and 97.8 MB in the end (delta: -48.3 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 7519.81 ms. Allocated memory was 165.7 MB in the beginning and 331.4 MB in the end (delta: 165.7 MB). Free memory was 97.8 MB in the beginning and 81.1 MB in the end (delta: 16.7 MB). Peak memory consumption was 183.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 28462.48 ms. Allocated memory was 331.4 MB in the beginning and 692.1 MB in the end (delta: 360.7 MB). Free memory was 80.1 MB in the beginning and 366.5 MB in the end (delta: -286.5 MB). Peak memory consumption was 74.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-29 21:29:34,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:29:34,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:29:34,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:29:34,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:29:34,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:29:34,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:29:34,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:29:34,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:29:34,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:29:34,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:29:34,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:29:34,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:29:34,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:29:34,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:29:34,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:29:34,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:29:34,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:29:34,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:29:34,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:29:34,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:29:34,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:29:34,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:29:34,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:29:34,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:29:34,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:29:34,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:29:34,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:29:34,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:29:34,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:29:34,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:29:34,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:29:34,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:29:34,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:29:34,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:29:34,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:29:34,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:29:34,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:29:34,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:29:34,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:29:34,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:29:34,691 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2020-11-29 21:29:34,751 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:29:34,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:29:34,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:29:34,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:29:34,755 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:29:34,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:29:34,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:29:34,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:29:34,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:29:34,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:29:34,757 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 21:29:34,757 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 21:29:34,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:29:34,757 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:29:34,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:29:34,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:29:34,758 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:29:34,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:29:34,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:29:34,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:29:34,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:29:34,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:29:34,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:29:34,759 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 21:29:34,760 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 21:29:34,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:29:34,760 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:29:34,760 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 21:29:34,760 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2020-11-29 21:29:34,761 INFO L138 SettingsManager]: * To the following directory=dump/ 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-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 669263f08518bb1cf8ceaa519dbf74e3653f2407 [2020-11-29 21:29:35,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:29:35,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:29:35,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:29:35,227 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:29:35,229 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:29:35,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---kernel--locking--locktorture.ko.cil.i [2020-11-29 21:29:35,299 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/data/b5bdfb058/bffe69ad28ed4a519feee7eb72b24a91/FLAG3e6dad470 [2020-11-29 21:29:36,237 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:29:36,238 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---kernel--locking--locktorture.ko.cil.i [2020-11-29 21:29:36,296 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/data/b5bdfb058/bffe69ad28ed4a519feee7eb72b24a91/FLAG3e6dad470 [2020-11-29 21:29:36,676 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/data/b5bdfb058/bffe69ad28ed4a519feee7eb72b24a91 [2020-11-29 21:29:36,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:29:36,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:29:36,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:29:36,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:29:36,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:29:36,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:29:36" (1/1) ... [2020-11-29 21:29:36,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f0e4545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:29:36, skipping insertion in model container [2020-11-29 21:29:36,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:29:36" (1/1) ... [2020-11-29 21:29:36,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:29:36,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:29:39,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:29:39,289 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:29:39,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:29:40,374 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:29:40,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:29:40 WrapperNode [2020-11-29 21:29:40,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:29:40,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:29:40,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:29:40,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:29:40,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:29:40" (1/1) ... [2020-11-29 21:29:40,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:29:40" (1/1) ... [2020-11-29 21:29:40,697 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:29:40,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:29:40,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:29:40,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:29:40,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:29:40" (1/1) ... [2020-11-29 21:29:40,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:29:40" (1/1) ... [2020-11-29 21:29:40,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:29:40" (1/1) ... [2020-11-29 21:29:40,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:29:40" (1/1) ... [2020-11-29 21:29:40,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:29:40" (1/1) ... [2020-11-29 21:29:40,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:29:40" (1/1) ... [2020-11-29 21:29:40,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:29:40" (1/1) ... [2020-11-29 21:29:41,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:29:41,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:29:41,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:29:41,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:29:41,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:29:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:29:41,079 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2020-11-29 21:29:41,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 21:29:41,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 21:29:41,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2020-11-29 21:29:41,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2020-11-29 21:29:41,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 21:29:41,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 21:29:41,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:29:41,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:29:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-11-29 21:29:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2020-11-29 21:29:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 21:29:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:29:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 21:29:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2020-11-29 21:29:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-11-29 21:29:41,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 21:29:41,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-29 21:29:57,314 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_6_returnLabel: main_#res := 0bv32; [2020-11-29 21:29:57,315 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-11-29 21:29:57,316 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5507: #t~ret506 := main_#res; [2020-11-29 21:29:57,343 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:29:57,344 INFO L298 CfgBuilder]: Removed 1425 assume(true) statements. [2020-11-29 21:29:57,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:29:57 BoogieIcfgContainer [2020-11-29 21:29:57,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:29:57,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:29:57,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:29:57,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:29:57,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:29:36" (1/3) ... [2020-11-29 21:29:57,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62467f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:29:57, skipping insertion in model container [2020-11-29 21:29:57,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:29:40" (2/3) ... [2020-11-29 21:29:57,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62467f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:29:57, skipping insertion in model container [2020-11-29 21:29:57,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:29:57" (3/3) ... [2020-11-29 21:29:57,356 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---kernel--locking--locktorture.ko.cil.i [2020-11-29 21:29:57,366 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:29:57,372 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 92 error locations. [2020-11-29 21:29:57,383 INFO L253 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2020-11-29 21:29:57,417 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:29:57,417 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:29:57,417 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:29:57,417 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:29:57,417 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:29:57,418 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:29:57,418 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:29:57,418 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:29:57,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states. [2020-11-29 21:29:57,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 21:29:57,463 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:29:57,464 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:29:57,465 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr82ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr73ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr77ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr78ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr64ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr87ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr72ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr91ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr81ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr74ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr56ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr86ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr65ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr90ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr69ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr89ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr66ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr75ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr80ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr85ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr70ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr67ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr83ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr76ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr79ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr71ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr88ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:29:57,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:29:57,470 INFO L82 PathProgramCache]: Analyzing trace with hash -225208565, now seen corresponding path program 1 times [2020-11-29 21:29:57,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:29:57,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1941967244] [2020-11-29 21:29:57,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 21:29:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:29:58,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 21:29:58,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:29:58,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:29:58,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:29:58,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:29:58,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1941967244] [2020-11-29 21:29:58,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:29:58,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-29 21:29:58,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859904587] [2020-11-29 21:29:58,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:29:58,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:29:58,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:29:58,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:29:58,870 INFO L87 Difference]: Start difference. First operand 1328 states. Second operand 4 states. [2020-11-29 21:30:01,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:30:01,261 INFO L93 Difference]: Finished difference Result 5280 states and 7348 transitions. [2020-11-29 21:30:01,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:30:01,264 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-29 21:30:01,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:30:01,310 INFO L225 Difference]: With dead ends: 5280 [2020-11-29 21:30:01,310 INFO L226 Difference]: Without dead ends: 3803 [2020-11-29 21:30:01,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:30:01,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3803 states. [2020-11-29 21:30:01,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3803 to 1282. [2020-11-29 21:30:01,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1282 states. [2020-11-29 21:30:01,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1565 transitions. [2020-11-29 21:30:01,466 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1565 transitions. Word has length 17 [2020-11-29 21:30:01,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:30:01,468 INFO L481 AbstractCegarLoop]: Abstraction has 1282 states and 1565 transitions. [2020-11-29 21:30:01,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:30:01,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1565 transitions. [2020-11-29 21:30:01,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 21:30:01,471 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:30:01,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:30:01,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 21:30:01,686 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr82ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr73ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr77ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr78ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr64ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr87ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr72ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr91ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr81ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr74ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr56ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr86ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr65ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr90ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr69ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr89ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr66ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr75ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr80ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr85ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr70ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr67ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr83ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr76ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr79ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr71ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr88ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:30:01,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:30:01,687 INFO L82 PathProgramCache]: Analyzing trace with hash -779042294, now seen corresponding path program 1 times [2020-11-29 21:30:01,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:30:01,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1379009394] [2020-11-29 21:30:01,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 21:30:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:30:06,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-29 21:30:06,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:30:06,828 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22412 treesize of output 22396 [2020-11-29 21:30:06,865 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 21:30:17,700 WARN L193 SmtUtils]: Spent 10.83 s on a formula simplification. DAG size of input: 300 DAG size of output: 251 [2020-11-29 21:30:17,702 INFO L625 ElimStorePlain]: treesize reduction 22055, result has 1.5 percent of original size [2020-11-29 21:30:17,856 INFO L545 ElimStorePlain]: Start of recursive call 1: 78 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 21:30:17,856 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 79 variables, input treesize:256, output treesize:15 [2020-11-29 21:30:17,903 INFO L441 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_110|], 14=[|v_#memory_$Pointer$.base_110|]} [2020-11-29 21:30:18,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:18,732 INFO L244 Elim1Store]: Index analysis took 724 ms [2020-11-29 21:30:18,737 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2020-11-29 21:30:18,738 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 21:30:19,384 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-11-29 21:30:19,384 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:30:19,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,502 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:30:19,503 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 22 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 88 [2020-11-29 21:30:19,504 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 21:30:19,739 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-11-29 21:30:19,740 INFO L625 ElimStorePlain]: treesize reduction 12, result has 92.2 percent of original size [2020-11-29 21:30:19,748 INFO L545 ElimStorePlain]: Start of recursive call 1: 13 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 21:30:19,748 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 15 variables, input treesize:97, output treesize:38 [2020-11-29 21:30:19,814 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 21:30:19,826 INFO L441 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_111|], 5=[|v_#memory_$Pointer$.base_111|]} [2020-11-29 21:30:19,874 INFO L350 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2020-11-29 21:30:19,875 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 20 [2020-11-29 21:30:19,875 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 21:30:19,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:19,886 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2020-11-29 21:30:19,887 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 21:30:19,956 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:30:20,097 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2020-11-29 21:30:20,098 INFO L350 Elim1Store]: treesize reduction 28, result has 64.6 percent of original size [2020-11-29 21:30:20,098 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 70 [2020-11-29 21:30:20,099 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-29 21:30:20,125 INFO L350 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2020-11-29 21:30:20,125 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24 [2020-11-29 21:30:20,126 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-11-29 21:30:20,209 INFO L625 ElimStorePlain]: treesize reduction 60, result has 61.3 percent of original size [2020-11-29 21:30:20,211 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-11-29 21:30:20,211 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:119, output treesize:116 [2020-11-29 21:30:20,346 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 21:30:20,365 INFO L441 ElimStorePlain]: Different costs {11=[|#memory_$Pointer$.offset|], 17=[|#memory_$Pointer$.base|]} [2020-11-29 21:30:20,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 21:30:20,504 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:30:20,504 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 58 [2020-11-29 21:30:20,505 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 21:30:20,515 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:30:20,516 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 34 [2020-11-29 21:30:20,516 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 21:30:20,609 INFO L625 ElimStorePlain]: treesize reduction 4, result has 96.3 percent of original size [2020-11-29 21:30:20,682 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:30:20,682 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 90 [2020-11-29 21:30:20,684 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 21:30:20,685 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-29 21:30:20,688 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 21:30:20,689 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-29 21:30:20,690 INFO L545 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 21:30:20,706 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:30:20,707 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 28 [2020-11-29 21:30:20,707 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-11-29 21:30:20,744 INFO L625 ElimStorePlain]: treesize reduction 22, result has 48.8 percent of original size [2020-11-29 21:30:20,746 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-11-29 21:30:20,746 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:192, output treesize:7 [2020-11-29 21:30:20,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:30:20,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:30:23,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1379009394] [2020-11-29 21:30:23,639 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: incompatible size [2020-11-29 21:30:23,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [807797249] [2020-11-29 21:30:23,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-29 21:31:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:31:29,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-29 21:31:29,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:31:29,549 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@34160a78 [2020-11-29 21:31:29,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905220275] [2020-11-29 21:31:29,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7405578-1a7a-4d0d-bd84-6806fb912cc4/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 21:31:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:31:30,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 21 conjunts are in the unsatisfiable core [2020-11-29 21:31:30,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:31:30,455 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@34160a78 [2020-11-29 21:31:30,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:31:30,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-11-29 21:31:30,455 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-11-29 21:31:30,455 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 21:31:31,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk,3 mathsat -unsat_core_generation=3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 21:31:31,101 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-11-29 21:31:31,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:31:31 BoogieIcfgContainer [2020-11-29 21:31:31,102 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:31:31,103 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:31:31,103 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:31:31,104 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:31:31,104 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:29:57" (3/4) ... [2020-11-29 21:31:31,108 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 21:31:31,108 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:31:31,114 INFO L168 Benchmark]: Toolchain (without parser) took 114428.02 ms. Allocated memory was 52.4 MB in the beginning and 390.1 MB in the end (delta: 337.6 MB). Free memory was 31.4 MB in the beginning and 221.2 MB in the end (delta: -189.8 MB). Peak memory consumption was 146.7 MB. Max. memory is 16.1 GB. [2020-11-29 21:31:31,115 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 52.4 MB. Free memory was 35.0 MB in the beginning and 34.9 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:31:31,115 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3692.13 ms. Allocated memory was 52.4 MB in the beginning and 119.5 MB in the end (delta: 67.1 MB). Free memory was 31.1 MB in the beginning and 76.7 MB in the end (delta: -45.6 MB). Peak memory consumption was 62.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:31:31,117 INFO L168 Benchmark]: Boogie Procedure Inliner took 319.85 ms. Allocated memory is still 119.5 MB. Free memory was 76.7 MB in the beginning and 50.2 MB in the end (delta: 26.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:31:31,118 INFO L168 Benchmark]: Boogie Preprocessor took 307.36 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 50.2 MB in the beginning and 76.5 MB in the end (delta: -26.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. [2020-11-29 21:31:31,120 INFO L168 Benchmark]: RCFGBuilder took 16341.47 ms. Allocated memory was 144.7 MB in the beginning and 390.1 MB in the end (delta: 245.4 MB). Free memory was 76.5 MB in the beginning and 130.9 MB in the end (delta: -54.4 MB). Peak memory consumption was 196.8 MB. Max. memory is 16.1 GB. [2020-11-29 21:31:31,122 INFO L168 Benchmark]: TraceAbstraction took 93752.40 ms. Allocated memory is still 390.1 MB. Free memory was 129.9 MB in the beginning and 221.2 MB in the end (delta: -91.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:31:31,122 INFO L168 Benchmark]: Witness Printer took 5.42 ms. Allocated memory is still 390.1 MB. Free memory is still 221.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:31:31,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 52.4 MB. Free memory was 35.0 MB in the beginning and 34.9 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3692.13 ms. Allocated memory was 52.4 MB in the beginning and 119.5 MB in the end (delta: 67.1 MB). Free memory was 31.1 MB in the beginning and 76.7 MB in the end (delta: -45.6 MB). Peak memory consumption was 62.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 319.85 ms. Allocated memory is still 119.5 MB. Free memory was 76.7 MB in the beginning and 50.2 MB in the end (delta: 26.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 307.36 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 50.2 MB in the beginning and 76.5 MB in the end (delta: -26.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 16341.47 ms. Allocated memory was 144.7 MB in the beginning and 390.1 MB in the end (delta: 245.4 MB). Free memory was 76.5 MB in the beginning and 130.9 MB in the end (delta: -54.4 MB). Peak memory consumption was 196.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 93752.40 ms. Allocated memory is still 390.1 MB. Free memory was 129.9 MB in the beginning and 221.2 MB in the end (delta: -91.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.42 ms. Allocated memory is still 390.1 MB. Free memory is still 221.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9121]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of strcmp at line 4706, overapproximation of large string literal at line 3701. Possible FailurePath: [L3692] static int nwriters_stress = -1; [L3693] static int nreaders_stress = -1; [L3694] static int onoff_holdoff = 0; [L3695] static int onoff_interval = 0; [L3696] static int shuffle_interval = 3; [L3697] static int shutdown_secs = 0; [L3698] static int stat_interval = 60; [L3699] static int stutter = 5; [L3700] static bool verbose = 1; [L3701] static char *torture_type = (char *)"spin_lock"; [L3702] static struct task_struct *stats_task ; [L3703] static struct task_struct **writer_tasks ; [L3704] static struct task_struct **reader_tasks ; [L3705] static bool lock_is_write_held ; [L3706] static bool lock_is_read_held ; [L3707] int torture_runnable = 1; [L3709] static struct lock_torture_cxt cxt = {0, 0, 0, {0}, (struct lock_torture_ops *)0, (struct lock_stress_stats *)0, 0}; [L3752-L3755] static struct lock_torture_ops lock_busted_ops = {0, & torture_lock_busted_write_lock, & torture_lock_busted_write_delay, & torture_lock_busted_write_unlock, (int (*)(void))0, (void (*)(struct torture_random_state * ))0, (void (*)(void))0, 0UL, "lock_busted"}; [L3756-L3757] static spinlock_t torture_spinlock = {{{{{0U}}, 3735899821U, 4294967295U, (void *)-1, {0, {0, 0}, "torture_spinlock", 0, 0UL}}}}; [L3818-L3821] static struct lock_torture_ops spin_lock_ops = {0, & torture_spin_lock_write_lock, & torture_spin_lock_write_delay, & torture_spin_lock_write_unlock, (int (*)(void))0, (void (*)(struct torture_random_state * ))0, (void (*)(void))0, 0UL, "spin_lock"}; [L3842-L3845] static struct lock_torture_ops spin_lock_irq_ops = {0, & torture_spin_lock_write_lock_irq, & torture_spin_lock_write_delay, & torture_lock_spin_write_unlock_irq, (int (*)(void))0, (void (*)(struct torture_random_state * ))0, (void (*)(void))0, 0UL, "spin_lock_irq"}; [L3952-L3955] static struct lock_torture_ops rw_lock_ops = {0, & torture_rwlock_write_lock, & torture_rwlock_write_delay, & torture_rwlock_write_unlock, & torture_rwlock_read_lock, & torture_rwlock_read_delay, & torture_rwlock_read_unlock, 0UL, "rw_lock"}; [L3996-L3999] static struct lock_torture_ops rw_lock_irq_ops = {0, & torture_rwlock_write_lock_irq, & torture_rwlock_write_delay, & torture_rwlock_write_unlock_irq, & torture_rwlock_read_lock_irq, & torture_rwlock_read_delay, & torture_rwlock_read_unlock_irq, 0UL, "rw_lock_irq"}; [L4000-L4003] static struct mutex torture_mutex = {{1}, {{{{{0U}}, 3735899821U, 4294967295U, (void *)-1, {0, {0, 0}, "torture_mutex.wait_lock", 0, 0UL}}}}, {& torture_mutex.wait_list, & torture_mutex.wait_list}, 0, (void *)(& torture_mutex), {0, {0, 0}, "torture_mutex", 0, 0UL}}; [L4067-L4069] static struct lock_torture_ops mutex_lock_ops = {0, & torture_mutex_lock, & torture_mutex_delay, & torture_mutex_unlock, (int (*)(void))0, (void (*)(struct torture_random_state * ))0, (void (*)(void))0, 0UL, "mutex_lock"}; [L4070-L4074] static struct rw_semaphore torture_rwsem = {0L, {& torture_rwsem.wait_list, & torture_rwsem.wait_list}, {{{0U}}, 3735899821U, 4294967295U, (void *)-1, {0, {0, 0}, "torture_rwsem.wait_lock", 0, 0UL}}, {{0}}, (struct task_struct *)0, {0, {0, 0}, "torture_rwsem", 0, 0UL}}; [L4201-L4204] static struct lock_torture_ops rwsem_lock_ops = {0, & torture_rwsem_down_write, & torture_rwsem_write_delay, & torture_rwsem_up_write, & torture_rwsem_down_read, & torture_rwsem_read_delay, & torture_rwsem_up_read, 0UL, "rwsem_lock"}; [L5052] struct ldv_thread ldv_thread_0 ; [L5053] struct ldv_thread ldv_thread_1 ; [L5054] struct ldv_thread ldv_thread_2 ; [L5055] struct ldv_thread ldv_thread_3 ; [L5056] struct ldv_thread ldv_thread_4 ; [L5057] struct ldv_thread ldv_thread_5 ; [L5058] struct ldv_thread ldv_thread_6 ; [L6363] int ldv_linux_alloc_usb_lock_lock = 1; [L6521] int ldv_linux_arch_io_iomem = 0; [L6563] static int ldv_linux_block_genhd_disk_state = 0; [L6609] static int ldv_linux_block_queue_queue_state = 0; [L6633] int ldv_linux_block_request_blk_rq = 0; [L6657] int ldv_linux_drivers_base_class_usb_gadget_class = 0; [L6818] int ldv_linux_fs_char_dev_usb_gadget_chrdev = 0; [L6881] int ldv_linux_fs_sysfs_sysfs = 0; [L6924] int ldv_linux_kernel_locking_rwlock_rlock = 1; [L6925] int ldv_linux_kernel_locking_rwlock_wlock = 1; [L7016] int ldv_linux_kernel_module_module_refcounter = 1; [L7087] int ldv_linux_kernel_rcu_srcu_srcu_nested = 0; [L7126] int ldv_linux_kernel_rcu_update_lock_bh_rcu_nested_bh = 0; [L7165] int ldv_linux_kernel_rcu_update_lock_sched_rcu_nested_sched = 0; [L7204] int ldv_linux_kernel_rcu_update_lock_rcu_nested = 0; [L7283] static bool __ldv_in_interrupt_context = 0; [L7360] unsigned short ldv_linux_mmc_sdio_func_sdio_element = 0U; [L7401] int ldv_linux_net_register_probe_state = 0; [L7444] int rtnllocknumber = 0; [L7520] int locksocknumber = 0; [L7574] int ldv_linux_usb_coherent_coherent_state = 0; [L7618] ldv_map LDV_LINUX_USB_DEV_USB_DEV_REF_COUNTS ; [L7682] int ldv_linux_usb_gadget_usb_gadget = 0; [L7832] int ldv_linux_usb_register_probe_state = 0; [L7874] int ldv_linux_usb_urb_urb_state = 0; [L8144] ldv_set LDV_LINUX_KERNEL_LOCKING_MUTEX_MUTEXES_lock ; [L8230] ldv_set LDV_LINUX_KERNEL_LOCKING_MUTEX_MUTEXES_torture_mutex ; [L8338] static int ldv_linux_kernel_locking_spinlock_spin_alloc_lock_of_task_struct = 1; [L8443] static int ldv_linux_kernel_locking_spinlock_spin_lock = 1; [L8548] static int ldv_linux_kernel_locking_spinlock_spin_lock_of_NOT_ARG_SIGN = 1; [L8653] static int ldv_linux_kernel_locking_spinlock_spin_node_size_lock_of_pglist_data = 1; [L8758] static int ldv_linux_kernel_locking_spinlock_spin_siglock_of_sighand_struct = 1; [L8863] static int ldv_linux_kernel_locking_spinlock_spin_torture_spinlock = 1; [L9014] static int ldv_linux_kernel_sched_completion_completion = 0; [L9046] static int ldv_linux_lib_idr_idr = 0; [L7902] COND FALSE !(expression == 0) [L5460] void (*ldv_6_exit_lock_torture_cleanup_default)(void) ; [L5461] int (*ldv_6_init_lock_torture_init_default)(void) ; [L5462] int ldv_6_ret_default ; [L5463] int tmp ; [L5464] int tmp___0 ; [L5070] int tmp ; [L4664] int i ; [L4665] int j ; [L4666] int firsterr ; [L4667] struct lock_torture_ops *torture_ops[7U] ; [L4668] bool tmp ; [L4669] int tmp___0 ; [L4670] int tmp___1 ; [L4671] unsigned int tmp___2 ; [L4672] int tmp___3 ; [L4673] int tmp___4 ; [L4674] int tmp___5 ; [L4675] void *tmp___6 ; [L4676] unsigned int tmp___7 ; [L4677] void *tmp___8 ; [L4678] void *tmp___9 ; [L4679] void *tmp___10 ; [L4682] firsterr = 0 [L4683] torture_ops[0] = & lock_busted_ops [L4684] torture_ops[1] = & spin_lock_ops [L4685] torture_ops[2] = & spin_lock_irq_ops [L4686] torture_ops[3] = & rw_lock_ops [L4687] torture_ops[4] = & rw_lock_irq_ops [L4688] torture_ops[5] = & mutex_lock_ops [L4689] torture_ops[6] = & rwsem_lock_ops [L10275] return __VERIFIER_nondet_bool(); [L4690] tmp = torture_init_begin(torture_type, (int )verbose, & torture_runnable) [L4692] COND TRUE \read(tmp) [L4693] tmp___0 = 0 [L4697] COND FALSE !(\read(tmp___0)) [L4701] i = 0 [L4714] COND TRUE (unsigned int )i <= 6U [L4705] EXPR torture_ops[i] [L4705] cxt.cur_ops = torture_ops[i] [L4706] EXPR cxt.cur_ops [L4706] EXPR (cxt.cur_ops)->name [L4706] tmp___1 = strcmp((char const *)torture_type, (cxt.cur_ops)->name) [L4708] COND TRUE tmp___1 == 0 [L4719] COND FALSE !(i == 7) [L4743] EXPR cxt.cur_ops [L4743] EXPR (cxt.cur_ops)->init [L4743] COND TRUE (unsigned long )(cxt.cur_ops)->init != (unsigned long )((void (*)(void))0) [L4745] EXPR cxt.cur_ops [L4745] (cxt.cur_ops)->init [L9705] COND TRUE ! expr [L9121] COND FALSE !(0) [L9121] __assert_fail ("0", "linux-4.0-rc1---kernel--locking--locktorture.ko.cil.c", 9853, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1329 locations, 92 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 93.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2656 SDtfs, 4923 SDslu, 3269 SDs, 0 SdLazy, 48 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1328occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 2521 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 SizeOfPredicates, 1 NumberOfNonLiveVariables, 791 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...